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Comparing libev/ev.c (file contents):
Revision 1.324 by root, Sat Jan 23 20:15:57 2010 UTC vs.
Revision 1.394 by root, Thu Aug 4 14:49:27 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
163 173
164#include <assert.h> 174#include <assert.h>
165#include <errno.h> 175#include <errno.h>
166#include <sys/types.h> 176#include <sys/types.h>
167#include <time.h> 177#include <time.h>
178#include <limits.h>
168 179
169#include <signal.h> 180#include <signal.h>
170 181
171#ifdef EV_H 182#ifdef EV_H
172# include EV_H 183# include EV_H
173#else 184#else
174# include "ev.h" 185# include "ev.h"
175#endif 186#endif
187
188EV_CPP(extern "C" {)
176 189
177#ifndef _WIN32 190#ifndef _WIN32
178# include <sys/time.h> 191# include <sys/time.h>
179# include <sys/wait.h> 192# include <sys/wait.h>
180# include <unistd.h> 193# include <unistd.h>
… …
183# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
184# include <windows.h> 197# include <windows.h>
185# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
186# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
187# endif 200# endif
201# undef EV_AVOID_STDIO
188#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
189 211
190/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
191 213
192/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
193#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
205#elif defined (MAXSIG) 227#elif defined (MAXSIG)
206# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
207#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
208# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
209#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
210# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
211#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
212# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
213#else 235#else
214# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
215/* to make it compile regardless, just remove the above line */ 237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
216# define EV_NSIG 65 239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
217#endif 244#endif
218 245
219#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
220# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
221# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
222# else 249# else
223# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
224# endif 251# endif
225#endif 252#endif
226 253
227#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
228# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
229# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
230# else 257# else
231# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
232# endif 259# endif
233#endif 260#endif
234 261
… …
236# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
237#endif 264#endif
238 265
239#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
240# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
241# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
242# else 269# else
243# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
244# endif 271# endif
245#endif 272#endif
246 273
247#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
248# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
249#endif 276#endif
250 277
251#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
252# ifdef _WIN32 279# ifdef _WIN32
253# define EV_USE_POLL 0 280# define EV_USE_POLL 0
254# else 281# else
255# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
256# endif 283# endif
257#endif 284#endif
258 285
259#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
260# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
261# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
262# else 289# else
263# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
264# endif 291# endif
265#endif 292#endif
266 293
… …
272# define EV_USE_PORT 0 299# define EV_USE_PORT 0
273#endif 300#endif
274 301
275#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
276# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
277# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
278# else 305# else
279# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
280# endif 307# endif
281#endif 308#endif
282 309
283#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
284# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
285# define EV_PID_HASHSIZE 1
286# else
287# define EV_PID_HASHSIZE 16
288# endif
289#endif 312#endif
290 313
291#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
292# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
293# define EV_INOTIFY_HASHSIZE 1
294# else
295# define EV_INOTIFY_HASHSIZE 16
296# endif
297#endif 316#endif
298 317
299#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
300# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
301# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
302# else 321# else
303# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
304# endif 323# endif
305#endif 324#endif
306 325
307#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
308# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
309# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
310# else 329# else
311# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
312# endif 331# endif
313#endif 332#endif
314 333
… …
317# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
318# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
319#endif 338#endif
320 339
321#ifndef EV_VERIFY 340#ifndef EV_VERIFY
322# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
323#endif 342#endif
324 343
325#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
326# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
327#endif 346#endif
328 347
329#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
330# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
331#endif 350#endif
332 351
333/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
334/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
335#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
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
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468
469/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
470/* ECB.H BEGIN */
471/*
472 * libecb - http://software.schmorp.de/pkg/libecb
473 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved.
477 *
478 * Redistribution and use in source and binary forms, with or without modifica-
479 * tion, are permitted provided that the following conditions are met:
480 *
481 * 1. Redistributions of source code must retain the above copyright notice,
482 * this list of conditions and the following disclaimer.
483 *
484 * 2. Redistributions in binary form must reproduce the above copyright
485 * notice, this list of conditions and the following disclaimer in the
486 * documentation and/or other materials provided with the distribution.
487 *
488 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
489 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
490 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
491 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
492 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
493 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
494 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
495 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
496 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
497 * OF THE POSSIBILITY OF SUCH DAMAGE.
498 */
499
500#ifndef ECB_H
501#define ECB_H
502
503#ifdef _WIN32
504 typedef signed char int8_t;
505 typedef unsigned char uint8_t;
506 typedef signed short int16_t;
507 typedef unsigned short uint16_t;
508 typedef signed int int32_t;
509 typedef unsigned int uint32_t;
457#if __GNUC__ >= 4 510 #if __GNUC__
458# define expect(expr,value) __builtin_expect ((expr),(value)) 511 typedef signed long long int64_t;
459# define noinline __attribute__ ((noinline)) 512 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t;
516 #endif
460#else 517#else
461# define expect(expr,value) (expr) 518 #include <inttypes.h>
462# define noinline
463# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
464# define inline
465# endif 519#endif
520
521/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place.
527 */
528#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
530 #define ECB_GCC_VERSION(major,minor) 0
531 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
466#endif 533 #endif
534#endif
467 535
536/*****************************************************************************/
537
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540
541#if ECB_NO_THREADS || ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0)
543#endif
544
545#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5)
547 #if __x86
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
551 #elif __amd64
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__)
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ )
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
563 #endif
564 #endif
565#endif
566
567#ifndef ECB_MEMORY_FENCE
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER)
569 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32)
578 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
580 #endif
581#endif
582
583#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS
585 /*
586 * if you get undefined symbol references to pthread_mutex_lock,
587 * or failure to find pthread.h, then you should implement
588 * the ECB_MEMORY_FENCE operations for your cpu/compiler
589 * OR provide pthread.h and link against the posix thread library
590 * of your system.
591 */
592 #include <pthread.h>
593 #define ECB_NEEDS_PTHREADS 1
594 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
595
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif
599#endif
600
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE)
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif
604
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE)
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif
608
609/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612
613#if __cplusplus
614 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__
617#elif ECB_C99
618 #define ecb_inline static inline
619#else
620 #define ecb_inline static
621#endif
622
623#if ECB_GCC_VERSION(3,3)
624 #define ecb_restrict __restrict__
625#elif ECB_C99
626 #define ecb_restrict restrict
627#else
628 #define ecb_restrict
629#endif
630
631typedef int ecb_bool;
632
633#define ECB_CONCAT_(a, b) a ## b
634#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
635#define ECB_STRINGIFY_(a) # a
636#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
637
638#define ecb_function_ ecb_inline
639
640#if ECB_GCC_VERSION(3,1)
641 #define ecb_attribute(attrlist) __attribute__(attrlist)
642 #define ecb_is_constant(expr) __builtin_constant_p (expr)
643 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
644 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
645#else
646 #define ecb_attribute(attrlist)
647 #define ecb_is_constant(expr) 0
648 #define ecb_expect(expr,value) (expr)
649 #define ecb_prefetch(addr,rw,locality)
650#endif
651
652/* no emulation for ecb_decltype */
653#if ECB_GCC_VERSION(4,5)
654 #define ecb_decltype(x) __decltype(x)
655#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x)
657#endif
658
659#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__))
664
665#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__))
669#else
670 #define ecb_artificial
671 #define ecb_hot
672 #define ecb_cold
673#endif
674
675/* put around conditional expressions if you are very sure that the */
676/* expression is mostly true or mostly false. note that these return */
677/* booleans, not the expression. */
468#define expect_false(expr) expect ((expr) != 0, 0) 678#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
469#define expect_true(expr) expect ((expr) != 0, 1) 679#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
680/* for compatibility to the rest of the world */
681#define ecb_likely(expr) ecb_expect_true (expr)
682#define ecb_unlikely(expr) ecb_expect_false (expr)
683
684/* count trailing zero bits and count # of one bits */
685#if ECB_GCC_VERSION(3,4)
686 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
687 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
688 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
689 #define ecb_ctz32(x) __builtin_ctz (x)
690 #define ecb_ctz64(x) __builtin_ctzll (x)
691 #define ecb_popcount32(x) __builtin_popcount (x)
692 /* no popcountll */
693#else
694 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
695 ecb_function_ int
696 ecb_ctz32 (uint32_t x)
697 {
698 int r = 0;
699
700 x &= ~x + 1; /* this isolates the lowest bit */
701
702#if ECB_branchless_on_i386
703 r += !!(x & 0xaaaaaaaa) << 0;
704 r += !!(x & 0xcccccccc) << 1;
705 r += !!(x & 0xf0f0f0f0) << 2;
706 r += !!(x & 0xff00ff00) << 3;
707 r += !!(x & 0xffff0000) << 4;
708#else
709 if (x & 0xaaaaaaaa) r += 1;
710 if (x & 0xcccccccc) r += 2;
711 if (x & 0xf0f0f0f0) r += 4;
712 if (x & 0xff00ff00) r += 8;
713 if (x & 0xffff0000) r += 16;
714#endif
715
716 return r;
717 }
718
719 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
720 ecb_function_ int
721 ecb_ctz64 (uint64_t x)
722 {
723 int shift = x & 0xffffffffU ? 0 : 32;
724 return ecb_ctz32 (x >> shift) + shift;
725 }
726
727 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
728 ecb_function_ int
729 ecb_popcount32 (uint32_t x)
730 {
731 x -= (x >> 1) & 0x55555555;
732 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
733 x = ((x >> 4) + x) & 0x0f0f0f0f;
734 x *= 0x01010101;
735
736 return x >> 24;
737 }
738
739 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
740 ecb_function_ int ecb_ld32 (uint32_t x)
741 {
742 int r = 0;
743
744 if (x >> 16) { x >>= 16; r += 16; }
745 if (x >> 8) { x >>= 8; r += 8; }
746 if (x >> 4) { x >>= 4; r += 4; }
747 if (x >> 2) { x >>= 2; r += 2; }
748 if (x >> 1) { r += 1; }
749
750 return r;
751 }
752
753 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
754 ecb_function_ int ecb_ld64 (uint64_t x)
755 {
756 int r = 0;
757
758 if (x >> 32) { x >>= 32; r += 32; }
759
760 return r + ecb_ld32 (x);
761 }
762#endif
763
764/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int
768ecb_popcount64 (uint64_t x)
769{
770 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
771}
772
773ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
774ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
775ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
776ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
777ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
778ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
779ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
780ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
781
782ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
783ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
784ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
785ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
786ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
787ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
788ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
789ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
790
791#if ECB_GCC_VERSION(4,3)
792 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
793 #define ecb_bswap32(x) __builtin_bswap32 (x)
794 #define ecb_bswap64(x) __builtin_bswap64 (x)
795#else
796 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
797 ecb_function_ uint16_t
798 ecb_bswap16 (uint16_t x)
799 {
800 return ecb_rotl16 (x, 8);
801 }
802
803 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
804 ecb_function_ uint32_t
805 ecb_bswap32 (uint32_t x)
806 {
807 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
808 }
809
810 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
811 ecb_function_ uint64_t
812 ecb_bswap64 (uint64_t x)
813 {
814 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
815 }
816#endif
817
818#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable ()
820#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { }
824#endif
825
826/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
828
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char
831ecb_byteorder_helper (void)
832{
833 const uint32_t u = 0x11223344;
834 return *(unsigned char *)&u;
835}
836
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841
842#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
846#endif
847
848#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N>
851 static inline int ecb_array_length (const T (&arr)[N])
852 {
853 return N;
854 }
855#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif
858
859#endif
860
861/* ECB.H END */
862
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864# undef ECB_MEMORY_FENCE
865# undef ECB_MEMORY_FENCE_ACQUIRE
866# undef ECB_MEMORY_FENCE_RELEASE
867#endif
868
869#define expect_false(cond) ecb_expect_false (cond)
870#define expect_true(cond) ecb_expect_true (cond)
871#define noinline ecb_noinline
872
470#define inline_size static inline 873#define inline_size ecb_inline
471 874
472#if EV_MINIMAL 875#if EV_FEATURE_CODE
876# define inline_speed ecb_inline
877#else
473# define inline_speed static noinline 878# define inline_speed static noinline
474#else
475# define inline_speed static inline
476#endif 879#endif
477 880
478#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 881#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
479 882
480#if EV_MINPRI == EV_MAXPRI 883#if EV_MINPRI == EV_MAXPRI
… …
493#define ev_active(w) ((W)(w))->active 896#define ev_active(w) ((W)(w))->active
494#define ev_at(w) ((WT)(w))->at 897#define ev_at(w) ((WT)(w))->at
495 898
496#if EV_USE_REALTIME 899#if EV_USE_REALTIME
497/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 900/* 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 */ 901/* giving it a reasonably high chance of working on typical architectures */
499static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 902static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
500#endif 903#endif
501 904
502#if EV_USE_MONOTONIC 905#if EV_USE_MONOTONIC
503static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 906static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
517# include "ev_win32.c" 920# include "ev_win32.c"
518#endif 921#endif
519 922
520/*****************************************************************************/ 923/*****************************************************************************/
521 924
925/* define a suitable floor function (only used by periodics atm) */
926
927#if EV_USE_FLOOR
928# include <math.h>
929# define ev_floor(v) floor (v)
930#else
931
932#include <float.h>
933
934/* a floor() replacement function, should be independent of ev_tstamp type */
935static ev_tstamp noinline
936ev_floor (ev_tstamp v)
937{
938 /* the choice of shift factor is not terribly important */
939#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
940 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
941#else
942 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
943#endif
944
945 /* argument too large for an unsigned long? */
946 if (expect_false (v >= shift))
947 {
948 ev_tstamp f;
949
950 if (v == v - 1.)
951 return v; /* very large number */
952
953 f = shift * ev_floor (v * (1. / shift));
954 return f + ev_floor (v - f);
955 }
956
957 /* special treatment for negative args? */
958 if (expect_false (v < 0.))
959 {
960 ev_tstamp f = -ev_floor (-v);
961
962 return f - (f == v ? 0 : 1);
963 }
964
965 /* fits into an unsigned long */
966 return (unsigned long)v;
967}
968
969#endif
970
971/*****************************************************************************/
972
973#ifdef __linux
974# include <sys/utsname.h>
975#endif
976
977static unsigned int noinline ecb_cold
978ev_linux_version (void)
979{
980#ifdef __linux
981 unsigned int v = 0;
982 struct utsname buf;
983 int i;
984 char *p = buf.release;
985
986 if (uname (&buf))
987 return 0;
988
989 for (i = 3+1; --i; )
990 {
991 unsigned int c = 0;
992
993 for (;;)
994 {
995 if (*p >= '0' && *p <= '9')
996 c = c * 10 + *p++ - '0';
997 else
998 {
999 p += *p == '.';
1000 break;
1001 }
1002 }
1003
1004 v = (v << 8) | c;
1005 }
1006
1007 return v;
1008#else
1009 return 0;
1010#endif
1011}
1012
1013/*****************************************************************************/
1014
1015#if EV_AVOID_STDIO
1016static void noinline ecb_cold
1017ev_printerr (const char *msg)
1018{
1019 write (STDERR_FILENO, msg, strlen (msg));
1020}
1021#endif
1022
522static void (*syserr_cb)(const char *msg); 1023static void (*syserr_cb)(const char *msg);
523 1024
524void 1025void ecb_cold
525ev_set_syserr_cb (void (*cb)(const char *msg)) 1026ev_set_syserr_cb (void (*cb)(const char *msg))
526{ 1027{
527 syserr_cb = cb; 1028 syserr_cb = cb;
528} 1029}
529 1030
530static void noinline 1031static void noinline ecb_cold
531ev_syserr (const char *msg) 1032ev_syserr (const char *msg)
532{ 1033{
533 if (!msg) 1034 if (!msg)
534 msg = "(libev) system error"; 1035 msg = "(libev) system error";
535 1036
536 if (syserr_cb) 1037 if (syserr_cb)
537 syserr_cb (msg); 1038 syserr_cb (msg);
538 else 1039 else
539 { 1040 {
1041#if EV_AVOID_STDIO
1042 ev_printerr (msg);
1043 ev_printerr (": ");
1044 ev_printerr (strerror (errno));
1045 ev_printerr ("\n");
1046#else
540 perror (msg); 1047 perror (msg);
1048#endif
541 abort (); 1049 abort ();
542 } 1050 }
543} 1051}
544 1052
545static void * 1053static void *
546ev_realloc_emul (void *ptr, long size) 1054ev_realloc_emul (void *ptr, long size)
547{ 1055{
1056#if __GLIBC__
1057 return realloc (ptr, size);
1058#else
548 /* some systems, notably openbsd and darwin, fail to properly 1059 /* some systems, notably openbsd and darwin, fail to properly
549 * implement realloc (x, 0) (as required by both ansi c-98 and 1060 * implement realloc (x, 0) (as required by both ansi c-89 and
550 * the single unix specification, so work around them here. 1061 * the single unix specification, so work around them here.
551 */ 1062 */
552 1063
553 if (size) 1064 if (size)
554 return realloc (ptr, size); 1065 return realloc (ptr, size);
555 1066
556 free (ptr); 1067 free (ptr);
557 return 0; 1068 return 0;
1069#endif
558} 1070}
559 1071
560static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1072static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
561 1073
562void 1074void ecb_cold
563ev_set_allocator (void *(*cb)(void *ptr, long size)) 1075ev_set_allocator (void *(*cb)(void *ptr, long size))
564{ 1076{
565 alloc = cb; 1077 alloc = cb;
566} 1078}
567 1079
… …
570{ 1082{
571 ptr = alloc (ptr, size); 1083 ptr = alloc (ptr, size);
572 1084
573 if (!ptr && size) 1085 if (!ptr && size)
574 { 1086 {
1087#if EV_AVOID_STDIO
1088 ev_printerr ("(libev) memory allocation failed, aborting.\n");
1089#else
575 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1090 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
1091#endif
576 abort (); 1092 abort ();
577 } 1093 }
578 1094
579 return ptr; 1095 return ptr;
580} 1096}
… …
596 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1112 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
597 unsigned char unused; 1113 unsigned char unused;
598#if EV_USE_EPOLL 1114#if EV_USE_EPOLL
599 unsigned int egen; /* generation counter to counter epoll bugs */ 1115 unsigned int egen; /* generation counter to counter epoll bugs */
600#endif 1116#endif
601#if EV_SELECT_IS_WINSOCKET 1117#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
602 SOCKET handle; 1118 SOCKET handle;
1119#endif
1120#if EV_USE_IOCP
1121 OVERLAPPED or, ow;
603#endif 1122#endif
604} ANFD; 1123} ANFD;
605 1124
606/* stores the pending event set for a given watcher */ 1125/* stores the pending event set for a given watcher */
607typedef struct 1126typedef struct
… …
662 1181
663 static int ev_default_loop_ptr; 1182 static int ev_default_loop_ptr;
664 1183
665#endif 1184#endif
666 1185
667#if EV_MINIMAL < 2 1186#if EV_FEATURE_API
668# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 1187# 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) 1188# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
670# define EV_INVOKE_PENDING invoke_cb (EV_A) 1189# define EV_INVOKE_PENDING invoke_cb (EV_A)
671#else 1190#else
672# define EV_RELEASE_CB (void)0 1191# define EV_RELEASE_CB (void)0
673# define EV_ACQUIRE_CB (void)0 1192# define EV_ACQUIRE_CB (void)0
674# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1193# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
675#endif 1194#endif
676 1195
677#define EVUNLOOP_RECURSE 0x80 1196#define EVBREAK_RECURSE 0x80
678 1197
679/*****************************************************************************/ 1198/*****************************************************************************/
680 1199
681#ifndef EV_HAVE_EV_TIME 1200#ifndef EV_HAVE_EV_TIME
682ev_tstamp 1201ev_tstamp
… …
726 if (delay > 0.) 1245 if (delay > 0.)
727 { 1246 {
728#if EV_USE_NANOSLEEP 1247#if EV_USE_NANOSLEEP
729 struct timespec ts; 1248 struct timespec ts;
730 1249
731 ts.tv_sec = (time_t)delay; 1250 EV_TS_SET (ts, delay);
732 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
733
734 nanosleep (&ts, 0); 1251 nanosleep (&ts, 0);
735#elif defined(_WIN32) 1252#elif defined(_WIN32)
736 Sleep ((unsigned long)(delay * 1e3)); 1253 Sleep ((unsigned long)(delay * 1e3));
737#else 1254#else
738 struct timeval tv; 1255 struct timeval tv;
739 1256
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 */ 1257 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
744 /* something not guaranteed by newer posix versions, but guaranteed */ 1258 /* something not guaranteed by newer posix versions, but guaranteed */
745 /* by older ones */ 1259 /* by older ones */
1260 EV_TV_SET (tv, delay);
746 select (0, 0, 0, 0, &tv); 1261 select (0, 0, 0, 0, &tv);
747#endif 1262#endif
748 } 1263 }
749} 1264}
750 1265
751/*****************************************************************************/ 1266/*****************************************************************************/
752 1267
753#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1268#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
754 1269
755/* find a suitable new size for the given array, */ 1270/* find a suitable new size for the given array, */
756/* hopefully by rounding to a ncie-to-malloc size */ 1271/* hopefully by rounding to a nice-to-malloc size */
757inline_size int 1272inline_size int
758array_nextsize (int elem, int cur, int cnt) 1273array_nextsize (int elem, int cur, int cnt)
759{ 1274{
760 int ncur = cur + 1; 1275 int ncur = cur + 1;
761 1276
… …
773 } 1288 }
774 1289
775 return ncur; 1290 return ncur;
776} 1291}
777 1292
778static noinline void * 1293static void * noinline ecb_cold
779array_realloc (int elem, void *base, int *cur, int cnt) 1294array_realloc (int elem, void *base, int *cur, int cnt)
780{ 1295{
781 *cur = array_nextsize (elem, *cur, cnt); 1296 *cur = array_nextsize (elem, *cur, cnt);
782 return ev_realloc (base, elem * *cur); 1297 return ev_realloc (base, elem * *cur);
783} 1298}
… …
786 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1301 memset ((void *)(base), 0, sizeof (*(base)) * (count))
787 1302
788#define array_needsize(type,base,cur,cnt,init) \ 1303#define array_needsize(type,base,cur,cnt,init) \
789 if (expect_false ((cnt) > (cur))) \ 1304 if (expect_false ((cnt) > (cur))) \
790 { \ 1305 { \
791 int ocur_ = (cur); \ 1306 int ecb_unused ocur_ = (cur); \
792 (base) = (type *)array_realloc \ 1307 (base) = (type *)array_realloc \
793 (sizeof (type), (base), &(cur), (cnt)); \ 1308 (sizeof (type), (base), &(cur), (cnt)); \
794 init ((base) + (ocur_), (cur) - ocur_); \ 1309 init ((base) + (ocur_), (cur) - ocur_); \
795 } 1310 }
796 1311
… …
857} 1372}
858 1373
859/*****************************************************************************/ 1374/*****************************************************************************/
860 1375
861inline_speed void 1376inline_speed void
862fd_event_nc (EV_P_ int fd, int revents) 1377fd_event_nocheck (EV_P_ int fd, int revents)
863{ 1378{
864 ANFD *anfd = anfds + fd; 1379 ANFD *anfd = anfds + fd;
865 ev_io *w; 1380 ev_io *w;
866 1381
867 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1382 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
879fd_event (EV_P_ int fd, int revents) 1394fd_event (EV_P_ int fd, int revents)
880{ 1395{
881 ANFD *anfd = anfds + fd; 1396 ANFD *anfd = anfds + fd;
882 1397
883 if (expect_true (!anfd->reify)) 1398 if (expect_true (!anfd->reify))
884 fd_event_nc (EV_A_ fd, revents); 1399 fd_event_nocheck (EV_A_ fd, revents);
885} 1400}
886 1401
887void 1402void
888ev_feed_fd_event (EV_P_ int fd, int revents) 1403ev_feed_fd_event (EV_P_ int fd, int revents)
889{ 1404{
890 if (fd >= 0 && fd < anfdmax) 1405 if (fd >= 0 && fd < anfdmax)
891 fd_event_nc (EV_A_ fd, revents); 1406 fd_event_nocheck (EV_A_ fd, revents);
892} 1407}
893 1408
894/* make sure the external fd watch events are in-sync */ 1409/* make sure the external fd watch events are in-sync */
895/* with the kernel/libev internal state */ 1410/* with the kernel/libev internal state */
896inline_size void 1411inline_size void
897fd_reify (EV_P) 1412fd_reify (EV_P)
898{ 1413{
899 int i; 1414 int i;
900 1415
1416#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1417 for (i = 0; i < fdchangecnt; ++i)
1418 {
1419 int fd = fdchanges [i];
1420 ANFD *anfd = anfds + fd;
1421
1422 if (anfd->reify & EV__IOFDSET && anfd->head)
1423 {
1424 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1425
1426 if (handle != anfd->handle)
1427 {
1428 unsigned long arg;
1429
1430 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1431
1432 /* handle changed, but fd didn't - we need to do it in two steps */
1433 backend_modify (EV_A_ fd, anfd->events, 0);
1434 anfd->events = 0;
1435 anfd->handle = handle;
1436 }
1437 }
1438 }
1439#endif
1440
901 for (i = 0; i < fdchangecnt; ++i) 1441 for (i = 0; i < fdchangecnt; ++i)
902 { 1442 {
903 int fd = fdchanges [i]; 1443 int fd = fdchanges [i];
904 ANFD *anfd = anfds + fd; 1444 ANFD *anfd = anfds + fd;
905 ev_io *w; 1445 ev_io *w;
906 1446
907 unsigned char events = 0; 1447 unsigned char o_events = anfd->events;
1448 unsigned char o_reify = anfd->reify;
908 1449
909 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1450 anfd->reify = 0;
910 events |= (unsigned char)w->events;
911 1451
912#if EV_SELECT_IS_WINSOCKET 1452 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
913 if (events)
914 { 1453 {
915 unsigned long arg; 1454 anfd->events = 0;
916 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1455
917 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1456 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1457 anfd->events |= (unsigned char)w->events;
1458
1459 if (o_events != anfd->events)
1460 o_reify = EV__IOFDSET; /* actually |= */
918 } 1461 }
919#endif
920 1462
921 { 1463 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); 1464 backend_modify (EV_A_ fd, o_events, anfd->events);
930 }
931 } 1465 }
932 1466
933 fdchangecnt = 0; 1467 fdchangecnt = 0;
934} 1468}
935 1469
… …
947 fdchanges [fdchangecnt - 1] = fd; 1481 fdchanges [fdchangecnt - 1] = fd;
948 } 1482 }
949} 1483}
950 1484
951/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1485/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
952inline_speed void 1486inline_speed void ecb_cold
953fd_kill (EV_P_ int fd) 1487fd_kill (EV_P_ int fd)
954{ 1488{
955 ev_io *w; 1489 ev_io *w;
956 1490
957 while ((w = (ev_io *)anfds [fd].head)) 1491 while ((w = (ev_io *)anfds [fd].head))
… …
959 ev_io_stop (EV_A_ w); 1493 ev_io_stop (EV_A_ w);
960 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1494 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
961 } 1495 }
962} 1496}
963 1497
964/* check whether the given fd is atcually valid, for error recovery */ 1498/* check whether the given fd is actually valid, for error recovery */
965inline_size int 1499inline_size int ecb_cold
966fd_valid (int fd) 1500fd_valid (int fd)
967{ 1501{
968#ifdef _WIN32 1502#ifdef _WIN32
969 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1503 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
970#else 1504#else
971 return fcntl (fd, F_GETFD) != -1; 1505 return fcntl (fd, F_GETFD) != -1;
972#endif 1506#endif
973} 1507}
974 1508
975/* called on EBADF to verify fds */ 1509/* called on EBADF to verify fds */
976static void noinline 1510static void noinline ecb_cold
977fd_ebadf (EV_P) 1511fd_ebadf (EV_P)
978{ 1512{
979 int fd; 1513 int fd;
980 1514
981 for (fd = 0; fd < anfdmax; ++fd) 1515 for (fd = 0; fd < anfdmax; ++fd)
… …
983 if (!fd_valid (fd) && errno == EBADF) 1517 if (!fd_valid (fd) && errno == EBADF)
984 fd_kill (EV_A_ fd); 1518 fd_kill (EV_A_ fd);
985} 1519}
986 1520
987/* called on ENOMEM in select/poll to kill some fds and retry */ 1521/* called on ENOMEM in select/poll to kill some fds and retry */
988static void noinline 1522static void noinline ecb_cold
989fd_enomem (EV_P) 1523fd_enomem (EV_P)
990{ 1524{
991 int fd; 1525 int fd;
992 1526
993 for (fd = anfdmax; fd--; ) 1527 for (fd = anfdmax; fd--; )
… …
1011 anfds [fd].emask = 0; 1545 anfds [fd].emask = 0;
1012 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1546 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1013 } 1547 }
1014} 1548}
1015 1549
1550/* used to prepare libev internal fd's */
1551/* this is not fork-safe */
1552inline_speed void
1553fd_intern (int fd)
1554{
1555#ifdef _WIN32
1556 unsigned long arg = 1;
1557 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1558#else
1559 fcntl (fd, F_SETFD, FD_CLOEXEC);
1560 fcntl (fd, F_SETFL, O_NONBLOCK);
1561#endif
1562}
1563
1016/*****************************************************************************/ 1564/*****************************************************************************/
1017 1565
1018/* 1566/*
1019 * the heap functions want a real array index. array index 0 uis guaranteed to not 1567 * 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 1568 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1021 * the branching factor of the d-tree. 1569 * the branching factor of the d-tree.
1022 */ 1570 */
1023 1571
1024/* 1572/*
… …
1172 1720
1173static ANSIG signals [EV_NSIG - 1]; 1721static ANSIG signals [EV_NSIG - 1];
1174 1722
1175/*****************************************************************************/ 1723/*****************************************************************************/
1176 1724
1177/* used to prepare libev internal fd's */ 1725#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 1726
1191static void noinline 1727static void noinline ecb_cold
1192evpipe_init (EV_P) 1728evpipe_init (EV_P)
1193{ 1729{
1194 if (!ev_is_active (&pipe_w)) 1730 if (!ev_is_active (&pipe_w))
1195 { 1731 {
1196#if EV_USE_EVENTFD 1732# if EV_USE_EVENTFD
1197 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1733 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1198 if (evfd < 0 && errno == EINVAL) 1734 if (evfd < 0 && errno == EINVAL)
1199 evfd = eventfd (0, 0); 1735 evfd = eventfd (0, 0);
1200 1736
1201 if (evfd >= 0) 1737 if (evfd >= 0)
… …
1203 evpipe [0] = -1; 1739 evpipe [0] = -1;
1204 fd_intern (evfd); /* doing it twice doesn't hurt */ 1740 fd_intern (evfd); /* doing it twice doesn't hurt */
1205 ev_io_set (&pipe_w, evfd, EV_READ); 1741 ev_io_set (&pipe_w, evfd, EV_READ);
1206 } 1742 }
1207 else 1743 else
1208#endif 1744# endif
1209 { 1745 {
1210 while (pipe (evpipe)) 1746 while (pipe (evpipe))
1211 ev_syserr ("(libev) error creating signal/async pipe"); 1747 ev_syserr ("(libev) error creating signal/async pipe");
1212 1748
1213 fd_intern (evpipe [0]); 1749 fd_intern (evpipe [0]);
… …
1218 ev_io_start (EV_A_ &pipe_w); 1754 ev_io_start (EV_A_ &pipe_w);
1219 ev_unref (EV_A); /* watcher should not keep loop alive */ 1755 ev_unref (EV_A); /* watcher should not keep loop alive */
1220 } 1756 }
1221} 1757}
1222 1758
1223inline_size void 1759inline_speed void
1224evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1760evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1225{ 1761{
1226 if (!*flag) 1762 if (expect_true (*flag))
1763 return;
1764
1765 *flag = 1;
1766
1767 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1768
1769 pipe_write_skipped = 1;
1770
1771 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1772
1773 if (pipe_write_wanted)
1227 { 1774 {
1775 int old_errno;
1776
1777 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1778
1228 int old_errno = errno; /* save errno because write might clobber it */ 1779 old_errno = errno; /* save errno because write will clobber it */
1229
1230 *flag = 1;
1231 1780
1232#if EV_USE_EVENTFD 1781#if EV_USE_EVENTFD
1233 if (evfd >= 0) 1782 if (evfd >= 0)
1234 { 1783 {
1235 uint64_t counter = 1; 1784 uint64_t counter = 1;
1236 write (evfd, &counter, sizeof (uint64_t)); 1785 write (evfd, &counter, sizeof (uint64_t));
1237 } 1786 }
1238 else 1787 else
1239#endif 1788#endif
1789 {
1790 /* win32 people keep sending patches that change this write() to send() */
1791 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1792 /* so when you think this write should be a send instead, please find out */
1793 /* where your send() is from - it's definitely not the microsoft send, and */
1794 /* tell me. thank you. */
1240 write (evpipe [1], &old_errno, 1); 1795 write (evpipe [1], &(evpipe [1]), 1);
1796 }
1241 1797
1242 errno = old_errno; 1798 errno = old_errno;
1243 } 1799 }
1244} 1800}
1245 1801
… …
1248static void 1804static void
1249pipecb (EV_P_ ev_io *iow, int revents) 1805pipecb (EV_P_ ev_io *iow, int revents)
1250{ 1806{
1251 int i; 1807 int i;
1252 1808
1809 if (revents & EV_READ)
1810 {
1253#if EV_USE_EVENTFD 1811#if EV_USE_EVENTFD
1254 if (evfd >= 0) 1812 if (evfd >= 0)
1255 { 1813 {
1256 uint64_t counter; 1814 uint64_t counter;
1257 read (evfd, &counter, sizeof (uint64_t)); 1815 read (evfd, &counter, sizeof (uint64_t));
1258 } 1816 }
1259 else 1817 else
1260#endif 1818#endif
1261 { 1819 {
1262 char dummy; 1820 char dummy;
1821 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1263 read (evpipe [0], &dummy, 1); 1822 read (evpipe [0], &dummy, 1);
1823 }
1264 } 1824 }
1265 1825
1826 pipe_write_skipped = 0;
1827
1828#if EV_SIGNAL_ENABLE
1266 if (sig_pending) 1829 if (sig_pending)
1267 { 1830 {
1268 sig_pending = 0; 1831 sig_pending = 0;
1269 1832
1270 for (i = EV_NSIG - 1; i--; ) 1833 for (i = EV_NSIG - 1; i--; )
1271 if (expect_false (signals [i].pending)) 1834 if (expect_false (signals [i].pending))
1272 ev_feed_signal_event (EV_A_ i + 1); 1835 ev_feed_signal_event (EV_A_ i + 1);
1273 } 1836 }
1837#endif
1274 1838
1275#if EV_ASYNC_ENABLE 1839#if EV_ASYNC_ENABLE
1276 if (async_pending) 1840 if (async_pending)
1277 { 1841 {
1278 async_pending = 0; 1842 async_pending = 0;
… …
1287#endif 1851#endif
1288} 1852}
1289 1853
1290/*****************************************************************************/ 1854/*****************************************************************************/
1291 1855
1856void
1857ev_feed_signal (int signum)
1858{
1859#if EV_MULTIPLICITY
1860 EV_P = signals [signum - 1].loop;
1861
1862 if (!EV_A)
1863 return;
1864#endif
1865
1866 if (!ev_active (&pipe_w))
1867 return;
1868
1869 signals [signum - 1].pending = 1;
1870 evpipe_write (EV_A_ &sig_pending);
1871}
1872
1292static void 1873static void
1293ev_sighandler (int signum) 1874ev_sighandler (int signum)
1294{ 1875{
1295#if EV_MULTIPLICITY
1296 EV_P = signals [signum - 1].loop;
1297#endif
1298
1299#ifdef _WIN32 1876#ifdef _WIN32
1300 signal (signum, ev_sighandler); 1877 signal (signum, ev_sighandler);
1301#endif 1878#endif
1302 1879
1303 signals [signum - 1].pending = 1; 1880 ev_feed_signal (signum);
1304 evpipe_write (EV_A_ &sig_pending);
1305} 1881}
1306 1882
1307void noinline 1883void noinline
1308ev_feed_signal_event (EV_P_ int signum) 1884ev_feed_signal_event (EV_P_ int signum)
1309{ 1885{
… …
1346 break; 1922 break;
1347 } 1923 }
1348} 1924}
1349#endif 1925#endif
1350 1926
1927#endif
1928
1351/*****************************************************************************/ 1929/*****************************************************************************/
1352 1930
1931#if EV_CHILD_ENABLE
1353static WL childs [EV_PID_HASHSIZE]; 1932static WL childs [EV_PID_HASHSIZE];
1354
1355#ifndef _WIN32
1356 1933
1357static ev_signal childev; 1934static ev_signal childev;
1358 1935
1359#ifndef WIFCONTINUED 1936#ifndef WIFCONTINUED
1360# define WIFCONTINUED(status) 0 1937# define WIFCONTINUED(status) 0
… …
1365child_reap (EV_P_ int chain, int pid, int status) 1942child_reap (EV_P_ int chain, int pid, int status)
1366{ 1943{
1367 ev_child *w; 1944 ev_child *w;
1368 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1945 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1369 1946
1370 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1947 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1371 { 1948 {
1372 if ((w->pid == pid || !w->pid) 1949 if ((w->pid == pid || !w->pid)
1373 && (!traced || (w->flags & 1))) 1950 && (!traced || (w->flags & 1)))
1374 { 1951 {
1375 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1952 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 */ 1977 /* 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 */ 1978 /* 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); 1979 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1403 1980
1404 child_reap (EV_A_ pid, pid, status); 1981 child_reap (EV_A_ pid, pid, status);
1405 if (EV_PID_HASHSIZE > 1) 1982 if ((EV_PID_HASHSIZE) > 1)
1406 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1983 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1407} 1984}
1408 1985
1409#endif 1986#endif
1410 1987
1411/*****************************************************************************/ 1988/*****************************************************************************/
1412 1989
1990#if EV_USE_IOCP
1991# include "ev_iocp.c"
1992#endif
1413#if EV_USE_PORT 1993#if EV_USE_PORT
1414# include "ev_port.c" 1994# include "ev_port.c"
1415#endif 1995#endif
1416#if EV_USE_KQUEUE 1996#if EV_USE_KQUEUE
1417# include "ev_kqueue.c" 1997# include "ev_kqueue.c"
… …
1424#endif 2004#endif
1425#if EV_USE_SELECT 2005#if EV_USE_SELECT
1426# include "ev_select.c" 2006# include "ev_select.c"
1427#endif 2007#endif
1428 2008
1429int 2009int ecb_cold
1430ev_version_major (void) 2010ev_version_major (void)
1431{ 2011{
1432 return EV_VERSION_MAJOR; 2012 return EV_VERSION_MAJOR;
1433} 2013}
1434 2014
1435int 2015int ecb_cold
1436ev_version_minor (void) 2016ev_version_minor (void)
1437{ 2017{
1438 return EV_VERSION_MINOR; 2018 return EV_VERSION_MINOR;
1439} 2019}
1440 2020
1441/* return true if we are running with elevated privileges and should ignore env variables */ 2021/* return true if we are running with elevated privileges and should ignore env variables */
1442int inline_size 2022int inline_size ecb_cold
1443enable_secure (void) 2023enable_secure (void)
1444{ 2024{
1445#ifdef _WIN32 2025#ifdef _WIN32
1446 return 0; 2026 return 0;
1447#else 2027#else
1448 return getuid () != geteuid () 2028 return getuid () != geteuid ()
1449 || getgid () != getegid (); 2029 || getgid () != getegid ();
1450#endif 2030#endif
1451} 2031}
1452 2032
1453unsigned int 2033unsigned int ecb_cold
1454ev_supported_backends (void) 2034ev_supported_backends (void)
1455{ 2035{
1456 unsigned int flags = 0; 2036 unsigned int flags = 0;
1457 2037
1458 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2038 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1462 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2042 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1463 2043
1464 return flags; 2044 return flags;
1465} 2045}
1466 2046
1467unsigned int 2047unsigned int ecb_cold
1468ev_recommended_backends (void) 2048ev_recommended_backends (void)
1469{ 2049{
1470 unsigned int flags = ev_supported_backends (); 2050 unsigned int flags = ev_supported_backends ();
1471 2051
1472#ifndef __NetBSD__ 2052#ifndef __NetBSD__
… …
1477#ifdef __APPLE__ 2057#ifdef __APPLE__
1478 /* only select works correctly on that "unix-certified" platform */ 2058 /* only select works correctly on that "unix-certified" platform */
1479 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2059 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1480 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2060 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1481#endif 2061#endif
2062#ifdef __FreeBSD__
2063 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2064#endif
1482 2065
1483 return flags; 2066 return flags;
1484} 2067}
1485 2068
1486unsigned int 2069unsigned int ecb_cold
1487ev_embeddable_backends (void) 2070ev_embeddable_backends (void)
1488{ 2071{
1489 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2072 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1490 2073
1491 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2074 /* 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 */ 2075 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1493 flags &= ~EVBACKEND_EPOLL; 2076 flags &= ~EVBACKEND_EPOLL;
1494 2077
1495 return flags; 2078 return flags;
1496} 2079}
1497 2080
1498unsigned int 2081unsigned int
1499ev_backend (EV_P) 2082ev_backend (EV_P)
1500{ 2083{
1501 return backend; 2084 return backend;
1502} 2085}
1503 2086
1504#if EV_MINIMAL < 2 2087#if EV_FEATURE_API
1505unsigned int 2088unsigned int
1506ev_loop_count (EV_P) 2089ev_iteration (EV_P)
1507{ 2090{
1508 return loop_count; 2091 return loop_count;
1509} 2092}
1510 2093
1511unsigned int 2094unsigned int
1512ev_loop_depth (EV_P) 2095ev_depth (EV_P)
1513{ 2096{
1514 return loop_depth; 2097 return loop_depth;
1515} 2098}
1516 2099
1517void 2100void
… …
1536ev_userdata (EV_P) 2119ev_userdata (EV_P)
1537{ 2120{
1538 return userdata; 2121 return userdata;
1539} 2122}
1540 2123
2124void
1541void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2125ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1542{ 2126{
1543 invoke_cb = invoke_pending_cb; 2127 invoke_cb = invoke_pending_cb;
1544} 2128}
1545 2129
2130void
1546void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2131ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1547{ 2132{
1548 release_cb = release; 2133 release_cb = release;
1549 acquire_cb = acquire; 2134 acquire_cb = acquire;
1550} 2135}
1551#endif 2136#endif
1552 2137
1553/* initialise a loop structure, must be zero-initialised */ 2138/* initialise a loop structure, must be zero-initialised */
1554static void noinline 2139static void noinline ecb_cold
1555loop_init (EV_P_ unsigned int flags) 2140loop_init (EV_P_ unsigned int flags)
1556{ 2141{
1557 if (!backend) 2142 if (!backend)
1558 { 2143 {
2144 origflags = flags;
2145
1559#if EV_USE_REALTIME 2146#if EV_USE_REALTIME
1560 if (!have_realtime) 2147 if (!have_realtime)
1561 { 2148 {
1562 struct timespec ts; 2149 struct timespec ts;
1563 2150
… …
1585 if (!(flags & EVFLAG_NOENV) 2172 if (!(flags & EVFLAG_NOENV)
1586 && !enable_secure () 2173 && !enable_secure ()
1587 && getenv ("LIBEV_FLAGS")) 2174 && getenv ("LIBEV_FLAGS"))
1588 flags = atoi (getenv ("LIBEV_FLAGS")); 2175 flags = atoi (getenv ("LIBEV_FLAGS"));
1589 2176
1590 ev_rt_now = ev_time (); 2177 ev_rt_now = ev_time ();
1591 mn_now = get_clock (); 2178 mn_now = get_clock ();
1592 now_floor = mn_now; 2179 now_floor = mn_now;
1593 rtmn_diff = ev_rt_now - mn_now; 2180 rtmn_diff = ev_rt_now - mn_now;
1594#if EV_MINIMAL < 2 2181#if EV_FEATURE_API
1595 invoke_cb = ev_invoke_pending; 2182 invoke_cb = ev_invoke_pending;
1596#endif 2183#endif
1597 2184
1598 io_blocktime = 0.; 2185 io_blocktime = 0.;
1599 timeout_blocktime = 0.; 2186 timeout_blocktime = 0.;
1600 backend = 0; 2187 backend = 0;
1601 backend_fd = -1; 2188 backend_fd = -1;
1602 sig_pending = 0; 2189 sig_pending = 0;
1603#if EV_ASYNC_ENABLE 2190#if EV_ASYNC_ENABLE
1604 async_pending = 0; 2191 async_pending = 0;
1605#endif 2192#endif
2193 pipe_write_skipped = 0;
2194 pipe_write_wanted = 0;
1606#if EV_USE_INOTIFY 2195#if EV_USE_INOTIFY
1607 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2196 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1608#endif 2197#endif
1609#if EV_USE_SIGNALFD 2198#if EV_USE_SIGNALFD
1610 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2199 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1611#endif 2200#endif
1612 2201
1613 if (!(flags & 0x0000ffffU)) 2202 if (!(flags & EVBACKEND_MASK))
1614 flags |= ev_recommended_backends (); 2203 flags |= ev_recommended_backends ();
1615 2204
2205#if EV_USE_IOCP
2206 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2207#endif
1616#if EV_USE_PORT 2208#if EV_USE_PORT
1617 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2209 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1618#endif 2210#endif
1619#if EV_USE_KQUEUE 2211#if EV_USE_KQUEUE
1620 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2212 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1629 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 2221 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1630#endif 2222#endif
1631 2223
1632 ev_prepare_init (&pending_w, pendingcb); 2224 ev_prepare_init (&pending_w, pendingcb);
1633 2225
2226#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1634 ev_init (&pipe_w, pipecb); 2227 ev_init (&pipe_w, pipecb);
1635 ev_set_priority (&pipe_w, EV_MAXPRI); 2228 ev_set_priority (&pipe_w, EV_MAXPRI);
2229#endif
1636 } 2230 }
1637} 2231}
1638 2232
1639/* free up a loop structure */ 2233/* free up a loop structure */
1640static void noinline 2234void ecb_cold
1641loop_destroy (EV_P) 2235ev_loop_destroy (EV_P)
1642{ 2236{
1643 int i; 2237 int i;
2238
2239#if EV_MULTIPLICITY
2240 /* mimic free (0) */
2241 if (!EV_A)
2242 return;
2243#endif
2244
2245#if EV_CLEANUP_ENABLE
2246 /* queue cleanup watchers (and execute them) */
2247 if (expect_false (cleanupcnt))
2248 {
2249 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2250 EV_INVOKE_PENDING;
2251 }
2252#endif
2253
2254#if EV_CHILD_ENABLE
2255 if (ev_is_active (&childev))
2256 {
2257 ev_ref (EV_A); /* child watcher */
2258 ev_signal_stop (EV_A_ &childev);
2259 }
2260#endif
1644 2261
1645 if (ev_is_active (&pipe_w)) 2262 if (ev_is_active (&pipe_w))
1646 { 2263 {
1647 /*ev_ref (EV_A);*/ 2264 /*ev_ref (EV_A);*/
1648 /*ev_io_stop (EV_A_ &pipe_w);*/ 2265 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1670#endif 2287#endif
1671 2288
1672 if (backend_fd >= 0) 2289 if (backend_fd >= 0)
1673 close (backend_fd); 2290 close (backend_fd);
1674 2291
2292#if EV_USE_IOCP
2293 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2294#endif
1675#if EV_USE_PORT 2295#if EV_USE_PORT
1676 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2296 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1677#endif 2297#endif
1678#if EV_USE_KQUEUE 2298#if EV_USE_KQUEUE
1679 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2299 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1706 array_free (periodic, EMPTY); 2326 array_free (periodic, EMPTY);
1707#endif 2327#endif
1708#if EV_FORK_ENABLE 2328#if EV_FORK_ENABLE
1709 array_free (fork, EMPTY); 2329 array_free (fork, EMPTY);
1710#endif 2330#endif
2331#if EV_CLEANUP_ENABLE
2332 array_free (cleanup, EMPTY);
2333#endif
1711 array_free (prepare, EMPTY); 2334 array_free (prepare, EMPTY);
1712 array_free (check, EMPTY); 2335 array_free (check, EMPTY);
1713#if EV_ASYNC_ENABLE 2336#if EV_ASYNC_ENABLE
1714 array_free (async, EMPTY); 2337 array_free (async, EMPTY);
1715#endif 2338#endif
1716 2339
1717 backend = 0; 2340 backend = 0;
2341
2342#if EV_MULTIPLICITY
2343 if (ev_is_default_loop (EV_A))
2344#endif
2345 ev_default_loop_ptr = 0;
2346#if EV_MULTIPLICITY
2347 else
2348 ev_free (EV_A);
2349#endif
1718} 2350}
1719 2351
1720#if EV_USE_INOTIFY 2352#if EV_USE_INOTIFY
1721inline_size void infy_fork (EV_P); 2353inline_size void infy_fork (EV_P);
1722#endif 2354#endif
… …
1737 infy_fork (EV_A); 2369 infy_fork (EV_A);
1738#endif 2370#endif
1739 2371
1740 if (ev_is_active (&pipe_w)) 2372 if (ev_is_active (&pipe_w))
1741 { 2373 {
1742 /* this "locks" the handlers against writing to the pipe */ 2374 /* 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 2375
1749 ev_ref (EV_A); 2376 ev_ref (EV_A);
1750 ev_io_stop (EV_A_ &pipe_w); 2377 ev_io_stop (EV_A_ &pipe_w);
1751 2378
1752#if EV_USE_EVENTFD 2379#if EV_USE_EVENTFD
… …
1758 { 2385 {
1759 EV_WIN32_CLOSE_FD (evpipe [0]); 2386 EV_WIN32_CLOSE_FD (evpipe [0]);
1760 EV_WIN32_CLOSE_FD (evpipe [1]); 2387 EV_WIN32_CLOSE_FD (evpipe [1]);
1761 } 2388 }
1762 2389
2390#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1763 evpipe_init (EV_A); 2391 evpipe_init (EV_A);
1764 /* now iterate over everything, in case we missed something */ 2392 /* now iterate over everything, in case we missed something */
1765 pipecb (EV_A_ &pipe_w, EV_READ); 2393 pipecb (EV_A_ &pipe_w, EV_READ);
2394#endif
1766 } 2395 }
1767 2396
1768 postfork = 0; 2397 postfork = 0;
1769} 2398}
1770 2399
1771#if EV_MULTIPLICITY 2400#if EV_MULTIPLICITY
1772 2401
1773struct ev_loop * 2402struct ev_loop * ecb_cold
1774ev_loop_new (unsigned int flags) 2403ev_loop_new (unsigned int flags)
1775{ 2404{
1776 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2405 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1777 2406
1778 memset (EV_A, 0, sizeof (struct ev_loop)); 2407 memset (EV_A, 0, sizeof (struct ev_loop));
1779 loop_init (EV_A_ flags); 2408 loop_init (EV_A_ flags);
1780 2409
1781 if (ev_backend (EV_A)) 2410 if (ev_backend (EV_A))
1782 return EV_A; 2411 return EV_A;
1783 2412
2413 ev_free (EV_A);
1784 return 0; 2414 return 0;
1785} 2415}
1786 2416
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 */ 2417#endif /* multiplicity */
1800 2418
1801#if EV_VERIFY 2419#if EV_VERIFY
1802static void noinline 2420static void noinline ecb_cold
1803verify_watcher (EV_P_ W w) 2421verify_watcher (EV_P_ W w)
1804{ 2422{
1805 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2423 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1806 2424
1807 if (w->pending) 2425 if (w->pending)
1808 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2426 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1809} 2427}
1810 2428
1811static void noinline 2429static void noinline ecb_cold
1812verify_heap (EV_P_ ANHE *heap, int N) 2430verify_heap (EV_P_ ANHE *heap, int N)
1813{ 2431{
1814 int i; 2432 int i;
1815 2433
1816 for (i = HEAP0; i < N + HEAP0; ++i) 2434 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1821 2439
1822 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2440 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1823 } 2441 }
1824} 2442}
1825 2443
1826static void noinline 2444static void noinline ecb_cold
1827array_verify (EV_P_ W *ws, int cnt) 2445array_verify (EV_P_ W *ws, int cnt)
1828{ 2446{
1829 while (cnt--) 2447 while (cnt--)
1830 { 2448 {
1831 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2449 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1832 verify_watcher (EV_A_ ws [cnt]); 2450 verify_watcher (EV_A_ ws [cnt]);
1833 } 2451 }
1834} 2452}
1835#endif 2453#endif
1836 2454
1837#if EV_MINIMAL < 2 2455#if EV_FEATURE_API
1838void 2456void ecb_cold
1839ev_loop_verify (EV_P) 2457ev_verify (EV_P)
1840{ 2458{
1841#if EV_VERIFY 2459#if EV_VERIFY
1842 int i; 2460 int i;
1843 WL w; 2461 WL w;
1844 2462
… …
1878#if EV_FORK_ENABLE 2496#if EV_FORK_ENABLE
1879 assert (forkmax >= forkcnt); 2497 assert (forkmax >= forkcnt);
1880 array_verify (EV_A_ (W *)forks, forkcnt); 2498 array_verify (EV_A_ (W *)forks, forkcnt);
1881#endif 2499#endif
1882 2500
2501#if EV_CLEANUP_ENABLE
2502 assert (cleanupmax >= cleanupcnt);
2503 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2504#endif
2505
1883#if EV_ASYNC_ENABLE 2506#if EV_ASYNC_ENABLE
1884 assert (asyncmax >= asynccnt); 2507 assert (asyncmax >= asynccnt);
1885 array_verify (EV_A_ (W *)asyncs, asynccnt); 2508 array_verify (EV_A_ (W *)asyncs, asynccnt);
1886#endif 2509#endif
1887 2510
2511#if EV_PREPARE_ENABLE
1888 assert (preparemax >= preparecnt); 2512 assert (preparemax >= preparecnt);
1889 array_verify (EV_A_ (W *)prepares, preparecnt); 2513 array_verify (EV_A_ (W *)prepares, preparecnt);
2514#endif
1890 2515
2516#if EV_CHECK_ENABLE
1891 assert (checkmax >= checkcnt); 2517 assert (checkmax >= checkcnt);
1892 array_verify (EV_A_ (W *)checks, checkcnt); 2518 array_verify (EV_A_ (W *)checks, checkcnt);
2519#endif
1893 2520
1894# if 0 2521# if 0
2522#if EV_CHILD_ENABLE
1895 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2523 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) 2524 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2525#endif
1897# endif 2526# endif
1898#endif 2527#endif
1899} 2528}
1900#endif 2529#endif
1901 2530
1902#if EV_MULTIPLICITY 2531#if EV_MULTIPLICITY
1903struct ev_loop * 2532struct ev_loop * ecb_cold
1904ev_default_loop_init (unsigned int flags)
1905#else 2533#else
1906int 2534int
2535#endif
1907ev_default_loop (unsigned int flags) 2536ev_default_loop (unsigned int flags)
1908#endif
1909{ 2537{
1910 if (!ev_default_loop_ptr) 2538 if (!ev_default_loop_ptr)
1911 { 2539 {
1912#if EV_MULTIPLICITY 2540#if EV_MULTIPLICITY
1913 EV_P = ev_default_loop_ptr = &default_loop_struct; 2541 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1917 2545
1918 loop_init (EV_A_ flags); 2546 loop_init (EV_A_ flags);
1919 2547
1920 if (ev_backend (EV_A)) 2548 if (ev_backend (EV_A))
1921 { 2549 {
1922#ifndef _WIN32 2550#if EV_CHILD_ENABLE
1923 ev_signal_init (&childev, childcb, SIGCHLD); 2551 ev_signal_init (&childev, childcb, SIGCHLD);
1924 ev_set_priority (&childev, EV_MAXPRI); 2552 ev_set_priority (&childev, EV_MAXPRI);
1925 ev_signal_start (EV_A_ &childev); 2553 ev_signal_start (EV_A_ &childev);
1926 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2554 ev_unref (EV_A); /* child watcher should not keep loop alive */
1927#endif 2555#endif
… …
1932 2560
1933 return ev_default_loop_ptr; 2561 return ev_default_loop_ptr;
1934} 2562}
1935 2563
1936void 2564void
1937ev_default_destroy (void) 2565ev_loop_fork (EV_P)
1938{ 2566{
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 */ 2567 postfork = 1; /* must be in line with ev_default_fork */
1961} 2568}
1962 2569
1963/*****************************************************************************/ 2570/*****************************************************************************/
1964 2571
1965void 2572void
… …
1987 2594
1988 for (pri = NUMPRI; pri--; ) 2595 for (pri = NUMPRI; pri--; )
1989 while (pendingcnt [pri]) 2596 while (pendingcnt [pri])
1990 { 2597 {
1991 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2598 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 2599
1996 p->w->pending = 0; 2600 p->w->pending = 0;
1997 EV_CB_INVOKE (p->w, p->events); 2601 EV_CB_INVOKE (p->w, p->events);
1998 EV_FREQUENT_CHECK; 2602 EV_FREQUENT_CHECK;
1999 } 2603 }
… …
2056 EV_FREQUENT_CHECK; 2660 EV_FREQUENT_CHECK;
2057 feed_reverse (EV_A_ (W)w); 2661 feed_reverse (EV_A_ (W)w);
2058 } 2662 }
2059 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2663 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2060 2664
2061 feed_reverse_done (EV_A_ EV_TIMEOUT); 2665 feed_reverse_done (EV_A_ EV_TIMER);
2062 } 2666 }
2063} 2667}
2064 2668
2065#if EV_PERIODIC_ENABLE 2669#if EV_PERIODIC_ENABLE
2670
2671static void noinline
2672periodic_recalc (EV_P_ ev_periodic *w)
2673{
2674 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2675 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2676
2677 /* the above almost always errs on the low side */
2678 while (at <= ev_rt_now)
2679 {
2680 ev_tstamp nat = at + w->interval;
2681
2682 /* when resolution fails us, we use ev_rt_now */
2683 if (expect_false (nat == at))
2684 {
2685 at = ev_rt_now;
2686 break;
2687 }
2688
2689 at = nat;
2690 }
2691
2692 ev_at (w) = at;
2693}
2694
2066/* make periodics pending */ 2695/* make periodics pending */
2067inline_size void 2696inline_size void
2068periodics_reify (EV_P) 2697periodics_reify (EV_P)
2069{ 2698{
2070 EV_FREQUENT_CHECK; 2699 EV_FREQUENT_CHECK;
… …
2089 ANHE_at_cache (periodics [HEAP0]); 2718 ANHE_at_cache (periodics [HEAP0]);
2090 downheap (periodics, periodiccnt, HEAP0); 2719 downheap (periodics, periodiccnt, HEAP0);
2091 } 2720 }
2092 else if (w->interval) 2721 else if (w->interval)
2093 { 2722 {
2094 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2723 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]); 2724 ANHE_at_cache (periodics [HEAP0]);
2109 downheap (periodics, periodiccnt, HEAP0); 2725 downheap (periodics, periodiccnt, HEAP0);
2110 } 2726 }
2111 else 2727 else
2112 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2728 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2119 feed_reverse_done (EV_A_ EV_PERIODIC); 2735 feed_reverse_done (EV_A_ EV_PERIODIC);
2120 } 2736 }
2121} 2737}
2122 2738
2123/* simply recalculate all periodics */ 2739/* simply recalculate all periodics */
2124/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2740/* TODO: maybe ensure that at least one event happens when jumping forward? */
2125static void noinline 2741static void noinline ecb_cold
2126periodics_reschedule (EV_P) 2742periodics_reschedule (EV_P)
2127{ 2743{
2128 int i; 2744 int i;
2129 2745
2130 /* adjust periodics after time jump */ 2746 /* adjust periodics after time jump */
… …
2133 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2749 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2134 2750
2135 if (w->reschedule_cb) 2751 if (w->reschedule_cb)
2136 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2752 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2137 else if (w->interval) 2753 else if (w->interval)
2138 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2754 periodic_recalc (EV_A_ w);
2139 2755
2140 ANHE_at_cache (periodics [i]); 2756 ANHE_at_cache (periodics [i]);
2141 } 2757 }
2142 2758
2143 reheap (periodics, periodiccnt); 2759 reheap (periodics, periodiccnt);
2144} 2760}
2145#endif 2761#endif
2146 2762
2147/* adjust all timers by a given offset */ 2763/* adjust all timers by a given offset */
2148static void noinline 2764static void noinline ecb_cold
2149timers_reschedule (EV_P_ ev_tstamp adjust) 2765timers_reschedule (EV_P_ ev_tstamp adjust)
2150{ 2766{
2151 int i; 2767 int i;
2152 2768
2153 for (i = 0; i < timercnt; ++i) 2769 for (i = 0; i < timercnt; ++i)
… …
2190 * doesn't hurt either as we only do this on time-jumps or 2806 * doesn't hurt either as we only do this on time-jumps or
2191 * in the unlikely event of having been preempted here. 2807 * in the unlikely event of having been preempted here.
2192 */ 2808 */
2193 for (i = 4; --i; ) 2809 for (i = 4; --i; )
2194 { 2810 {
2811 ev_tstamp diff;
2195 rtmn_diff = ev_rt_now - mn_now; 2812 rtmn_diff = ev_rt_now - mn_now;
2196 2813
2814 diff = odiff - rtmn_diff;
2815
2197 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2816 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2198 return; /* all is well */ 2817 return; /* all is well */
2199 2818
2200 ev_rt_now = ev_time (); 2819 ev_rt_now = ev_time ();
2201 mn_now = get_clock (); 2820 mn_now = get_clock ();
2202 now_floor = mn_now; 2821 now_floor = mn_now;
… …
2225 mn_now = ev_rt_now; 2844 mn_now = ev_rt_now;
2226 } 2845 }
2227} 2846}
2228 2847
2229void 2848void
2230ev_loop (EV_P_ int flags) 2849ev_run (EV_P_ int flags)
2231{ 2850{
2232#if EV_MINIMAL < 2 2851#if EV_FEATURE_API
2233 ++loop_depth; 2852 ++loop_depth;
2234#endif 2853#endif
2235 2854
2236 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2855 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2237 2856
2238 loop_done = EVUNLOOP_CANCEL; 2857 loop_done = EVBREAK_CANCEL;
2239 2858
2240 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2859 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2241 2860
2242 do 2861 do
2243 { 2862 {
2244#if EV_VERIFY >= 2 2863#if EV_VERIFY >= 2
2245 ev_loop_verify (EV_A); 2864 ev_verify (EV_A);
2246#endif 2865#endif
2247 2866
2248#ifndef _WIN32 2867#ifndef _WIN32
2249 if (expect_false (curpid)) /* penalise the forking check even more */ 2868 if (expect_false (curpid)) /* penalise the forking check even more */
2250 if (expect_false (getpid () != curpid)) 2869 if (expect_false (getpid () != curpid))
… …
2262 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2881 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2263 EV_INVOKE_PENDING; 2882 EV_INVOKE_PENDING;
2264 } 2883 }
2265#endif 2884#endif
2266 2885
2886#if EV_PREPARE_ENABLE
2267 /* queue prepare watchers (and execute them) */ 2887 /* queue prepare watchers (and execute them) */
2268 if (expect_false (preparecnt)) 2888 if (expect_false (preparecnt))
2269 { 2889 {
2270 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2890 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2271 EV_INVOKE_PENDING; 2891 EV_INVOKE_PENDING;
2272 } 2892 }
2893#endif
2273 2894
2274 if (expect_false (loop_done)) 2895 if (expect_false (loop_done))
2275 break; 2896 break;
2276 2897
2277 /* we might have forked, so reify kernel state if necessary */ 2898 /* we might have forked, so reify kernel state if necessary */
… …
2284 /* calculate blocking time */ 2905 /* calculate blocking time */
2285 { 2906 {
2286 ev_tstamp waittime = 0.; 2907 ev_tstamp waittime = 0.;
2287 ev_tstamp sleeptime = 0.; 2908 ev_tstamp sleeptime = 0.;
2288 2909
2910 /* remember old timestamp for io_blocktime calculation */
2911 ev_tstamp prev_mn_now = mn_now;
2912
2913 /* update time to cancel out callback processing overhead */
2914 time_update (EV_A_ 1e100);
2915
2916 /* from now on, we want a pipe-wake-up */
2917 pipe_write_wanted = 1;
2918
2919 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
2920
2289 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2921 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2290 { 2922 {
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; 2923 waittime = MAX_BLOCKTIME;
2298 2924
2299 if (timercnt) 2925 if (timercnt)
2300 { 2926 {
2301 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2927 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2302 if (waittime > to) waittime = to; 2928 if (waittime > to) waittime = to;
2303 } 2929 }
2304 2930
2305#if EV_PERIODIC_ENABLE 2931#if EV_PERIODIC_ENABLE
2306 if (periodiccnt) 2932 if (periodiccnt)
2307 { 2933 {
2308 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2934 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2309 if (waittime > to) waittime = to; 2935 if (waittime > to) waittime = to;
2310 } 2936 }
2311#endif 2937#endif
2312 2938
2313 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2939 /* don't let timeouts decrease the waittime below timeout_blocktime */
2314 if (expect_false (waittime < timeout_blocktime)) 2940 if (expect_false (waittime < timeout_blocktime))
2315 waittime = timeout_blocktime; 2941 waittime = timeout_blocktime;
2942
2943 /* at this point, we NEED to wait, so we have to ensure */
2944 /* to pass a minimum nonzero value to the backend */
2945 if (expect_false (waittime < backend_mintime))
2946 waittime = backend_mintime;
2316 2947
2317 /* extra check because io_blocktime is commonly 0 */ 2948 /* extra check because io_blocktime is commonly 0 */
2318 if (expect_false (io_blocktime)) 2949 if (expect_false (io_blocktime))
2319 { 2950 {
2320 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2951 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2321 2952
2322 if (sleeptime > waittime - backend_fudge) 2953 if (sleeptime > waittime - backend_mintime)
2323 sleeptime = waittime - backend_fudge; 2954 sleeptime = waittime - backend_mintime;
2324 2955
2325 if (expect_true (sleeptime > 0.)) 2956 if (expect_true (sleeptime > 0.))
2326 { 2957 {
2327 ev_sleep (sleeptime); 2958 ev_sleep (sleeptime);
2328 waittime -= sleeptime; 2959 waittime -= sleeptime;
2329 } 2960 }
2330 } 2961 }
2331 } 2962 }
2332 2963
2333#if EV_MINIMAL < 2 2964#if EV_FEATURE_API
2334 ++loop_count; 2965 ++loop_count;
2335#endif 2966#endif
2336 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2967 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2337 backend_poll (EV_A_ waittime); 2968 backend_poll (EV_A_ waittime);
2338 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2969 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2970
2971 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */
2972
2973 if (pipe_write_skipped)
2974 {
2975 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2976 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2977 }
2978
2339 2979
2340 /* update ev_rt_now, do magic */ 2980 /* update ev_rt_now, do magic */
2341 time_update (EV_A_ waittime + sleeptime); 2981 time_update (EV_A_ waittime + sleeptime);
2342 } 2982 }
2343 2983
… …
2350#if EV_IDLE_ENABLE 2990#if EV_IDLE_ENABLE
2351 /* queue idle watchers unless other events are pending */ 2991 /* queue idle watchers unless other events are pending */
2352 idle_reify (EV_A); 2992 idle_reify (EV_A);
2353#endif 2993#endif
2354 2994
2995#if EV_CHECK_ENABLE
2355 /* queue check watchers, to be executed first */ 2996 /* queue check watchers, to be executed first */
2356 if (expect_false (checkcnt)) 2997 if (expect_false (checkcnt))
2357 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2998 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2999#endif
2358 3000
2359 EV_INVOKE_PENDING; 3001 EV_INVOKE_PENDING;
2360 } 3002 }
2361 while (expect_true ( 3003 while (expect_true (
2362 activecnt 3004 activecnt
2363 && !loop_done 3005 && !loop_done
2364 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3006 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2365 )); 3007 ));
2366 3008
2367 if (loop_done == EVUNLOOP_ONE) 3009 if (loop_done == EVBREAK_ONE)
2368 loop_done = EVUNLOOP_CANCEL; 3010 loop_done = EVBREAK_CANCEL;
2369 3011
2370#if EV_MINIMAL < 2 3012#if EV_FEATURE_API
2371 --loop_depth; 3013 --loop_depth;
2372#endif 3014#endif
2373} 3015}
2374 3016
2375void 3017void
2376ev_unloop (EV_P_ int how) 3018ev_break (EV_P_ int how)
2377{ 3019{
2378 loop_done = how; 3020 loop_done = how;
2379} 3021}
2380 3022
2381void 3023void
… …
2501 3143
2502 if (expect_false (ev_is_active (w))) 3144 if (expect_false (ev_is_active (w)))
2503 return; 3145 return;
2504 3146
2505 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 3147 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)))); 3148 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2507 3149
2508 EV_FREQUENT_CHECK; 3150 EV_FREQUENT_CHECK;
2509 3151
2510 ev_start (EV_A_ (W)w, 1); 3152 ev_start (EV_A_ (W)w, 1);
2511 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3153 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
… …
2529 EV_FREQUENT_CHECK; 3171 EV_FREQUENT_CHECK;
2530 3172
2531 wlist_del (&anfds[w->fd].head, (WL)w); 3173 wlist_del (&anfds[w->fd].head, (WL)w);
2532 ev_stop (EV_A_ (W)w); 3174 ev_stop (EV_A_ (W)w);
2533 3175
2534 fd_change (EV_A_ w->fd, 1); 3176 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2535 3177
2536 EV_FREQUENT_CHECK; 3178 EV_FREQUENT_CHECK;
2537} 3179}
2538 3180
2539void noinline 3181void noinline
… …
2581 timers [active] = timers [timercnt + HEAP0]; 3223 timers [active] = timers [timercnt + HEAP0];
2582 adjustheap (timers, timercnt, active); 3224 adjustheap (timers, timercnt, active);
2583 } 3225 }
2584 } 3226 }
2585 3227
2586 EV_FREQUENT_CHECK;
2587
2588 ev_at (w) -= mn_now; 3228 ev_at (w) -= mn_now;
2589 3229
2590 ev_stop (EV_A_ (W)w); 3230 ev_stop (EV_A_ (W)w);
3231
3232 EV_FREQUENT_CHECK;
2591} 3233}
2592 3234
2593void noinline 3235void noinline
2594ev_timer_again (EV_P_ ev_timer *w) 3236ev_timer_again (EV_P_ ev_timer *w)
2595{ 3237{
… …
2631 if (w->reschedule_cb) 3273 if (w->reschedule_cb)
2632 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3274 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2633 else if (w->interval) 3275 else if (w->interval)
2634 { 3276 {
2635 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3277 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 */ 3278 periodic_recalc (EV_A_ w);
2637 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2638 } 3279 }
2639 else 3280 else
2640 ev_at (w) = w->offset; 3281 ev_at (w) = w->offset;
2641 3282
2642 EV_FREQUENT_CHECK; 3283 EV_FREQUENT_CHECK;
… …
2674 periodics [active] = periodics [periodiccnt + HEAP0]; 3315 periodics [active] = periodics [periodiccnt + HEAP0];
2675 adjustheap (periodics, periodiccnt, active); 3316 adjustheap (periodics, periodiccnt, active);
2676 } 3317 }
2677 } 3318 }
2678 3319
2679 EV_FREQUENT_CHECK;
2680
2681 ev_stop (EV_A_ (W)w); 3320 ev_stop (EV_A_ (W)w);
3321
3322 EV_FREQUENT_CHECK;
2682} 3323}
2683 3324
2684void noinline 3325void noinline
2685ev_periodic_again (EV_P_ ev_periodic *w) 3326ev_periodic_again (EV_P_ ev_periodic *w)
2686{ 3327{
… …
2691#endif 3332#endif
2692 3333
2693#ifndef SA_RESTART 3334#ifndef SA_RESTART
2694# define SA_RESTART 0 3335# define SA_RESTART 0
2695#endif 3336#endif
3337
3338#if EV_SIGNAL_ENABLE
2696 3339
2697void noinline 3340void noinline
2698ev_signal_start (EV_P_ ev_signal *w) 3341ev_signal_start (EV_P_ ev_signal *w)
2699{ 3342{
2700 if (expect_false (ev_is_active (w))) 3343 if (expect_false (ev_is_active (w)))
… …
2761 sa.sa_handler = ev_sighandler; 3404 sa.sa_handler = ev_sighandler;
2762 sigfillset (&sa.sa_mask); 3405 sigfillset (&sa.sa_mask);
2763 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3406 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2764 sigaction (w->signum, &sa, 0); 3407 sigaction (w->signum, &sa, 0);
2765 3408
3409 if (origflags & EVFLAG_NOSIGMASK)
3410 {
2766 sigemptyset (&sa.sa_mask); 3411 sigemptyset (&sa.sa_mask);
2767 sigaddset (&sa.sa_mask, w->signum); 3412 sigaddset (&sa.sa_mask, w->signum);
2768 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3413 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3414 }
2769#endif 3415#endif
2770 } 3416 }
2771 3417
2772 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
2773} 3419}
… …
2807 } 3453 }
2808 3454
2809 EV_FREQUENT_CHECK; 3455 EV_FREQUENT_CHECK;
2810} 3456}
2811 3457
3458#endif
3459
3460#if EV_CHILD_ENABLE
3461
2812void 3462void
2813ev_child_start (EV_P_ ev_child *w) 3463ev_child_start (EV_P_ ev_child *w)
2814{ 3464{
2815#if EV_MULTIPLICITY 3465#if EV_MULTIPLICITY
2816 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3466 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2819 return; 3469 return;
2820 3470
2821 EV_FREQUENT_CHECK; 3471 EV_FREQUENT_CHECK;
2822 3472
2823 ev_start (EV_A_ (W)w, 1); 3473 ev_start (EV_A_ (W)w, 1);
2824 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3474 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2825 3475
2826 EV_FREQUENT_CHECK; 3476 EV_FREQUENT_CHECK;
2827} 3477}
2828 3478
2829void 3479void
… …
2833 if (expect_false (!ev_is_active (w))) 3483 if (expect_false (!ev_is_active (w)))
2834 return; 3484 return;
2835 3485
2836 EV_FREQUENT_CHECK; 3486 EV_FREQUENT_CHECK;
2837 3487
2838 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3488 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2839 ev_stop (EV_A_ (W)w); 3489 ev_stop (EV_A_ (W)w);
2840 3490
2841 EV_FREQUENT_CHECK; 3491 EV_FREQUENT_CHECK;
2842} 3492}
3493
3494#endif
2843 3495
2844#if EV_STAT_ENABLE 3496#if EV_STAT_ENABLE
2845 3497
2846# ifdef _WIN32 3498# ifdef _WIN32
2847# undef lstat 3499# undef lstat
… …
2853#define MIN_STAT_INTERVAL 0.1074891 3505#define MIN_STAT_INTERVAL 0.1074891
2854 3506
2855static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3507static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2856 3508
2857#if EV_USE_INOTIFY 3509#if EV_USE_INOTIFY
2858# define EV_INOTIFY_BUFSIZE 8192 3510
3511/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3512# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2859 3513
2860static void noinline 3514static void noinline
2861infy_add (EV_P_ ev_stat *w) 3515infy_add (EV_P_ ev_stat *w)
2862{ 3516{
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); 3517 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) 3560 if (!pend || pend == path)
2907 break; 3561 break;
2908 3562
2909 *pend = 0; 3563 *pend = 0;
2910 w->wd = inotify_add_watch (fs_fd, path, mask); 3564 w->wd = inotify_add_watch (fs_fd, path, mask);
2911 } 3565 }
2912 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3566 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2913 } 3567 }
2914 } 3568 }
2915 3569
2916 if (w->wd >= 0) 3570 if (w->wd >= 0)
2917 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3571 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2918 3572
2919 /* now re-arm timer, if required */ 3573 /* now re-arm timer, if required */
2920 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3574 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2921 ev_timer_again (EV_A_ &w->timer); 3575 ev_timer_again (EV_A_ &w->timer);
2922 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3576 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2930 3584
2931 if (wd < 0) 3585 if (wd < 0)
2932 return; 3586 return;
2933 3587
2934 w->wd = -2; 3588 w->wd = -2;
2935 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3589 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2936 wlist_del (&fs_hash [slot].head, (WL)w); 3590 wlist_del (&fs_hash [slot].head, (WL)w);
2937 3591
2938 /* remove this watcher, if others are watching it, they will rearm */ 3592 /* remove this watcher, if others are watching it, they will rearm */
2939 inotify_rm_watch (fs_fd, wd); 3593 inotify_rm_watch (fs_fd, wd);
2940} 3594}
… …
2942static void noinline 3596static void noinline
2943infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3597infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2944{ 3598{
2945 if (slot < 0) 3599 if (slot < 0)
2946 /* overflow, need to check for all hash slots */ 3600 /* overflow, need to check for all hash slots */
2947 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3601 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2948 infy_wd (EV_A_ slot, wd, ev); 3602 infy_wd (EV_A_ slot, wd, ev);
2949 else 3603 else
2950 { 3604 {
2951 WL w_; 3605 WL w_;
2952 3606
2953 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3607 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2954 { 3608 {
2955 ev_stat *w = (ev_stat *)w_; 3609 ev_stat *w = (ev_stat *)w_;
2956 w_ = w_->next; /* lets us remove this watcher and all before it */ 3610 w_ = w_->next; /* lets us remove this watcher and all before it */
2957 3611
2958 if (w->wd == wd || wd == -1) 3612 if (w->wd == wd || wd == -1)
2959 { 3613 {
2960 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3614 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2961 { 3615 {
2962 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3616 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2963 w->wd = -1; 3617 w->wd = -1;
2964 infy_add (EV_A_ w); /* re-add, no matter what */ 3618 infy_add (EV_A_ w); /* re-add, no matter what */
2965 } 3619 }
2966 3620
2967 stat_timer_cb (EV_A_ &w->timer, 0); 3621 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2972 3626
2973static void 3627static void
2974infy_cb (EV_P_ ev_io *w, int revents) 3628infy_cb (EV_P_ ev_io *w, int revents)
2975{ 3629{
2976 char buf [EV_INOTIFY_BUFSIZE]; 3630 char buf [EV_INOTIFY_BUFSIZE];
2977 struct inotify_event *ev = (struct inotify_event *)buf;
2978 int ofs; 3631 int ofs;
2979 int len = read (fs_fd, buf, sizeof (buf)); 3632 int len = read (fs_fd, buf, sizeof (buf));
2980 3633
2981 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3634 for (ofs = 0; ofs < len; )
3635 {
3636 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2982 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3637 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3638 ofs += sizeof (struct inotify_event) + ev->len;
3639 }
2983} 3640}
2984 3641
2985inline_size void 3642inline_size void ecb_cold
2986check_2625 (EV_P) 3643ev_check_2625 (EV_P)
2987{ 3644{
2988 /* kernels < 2.6.25 are borked 3645 /* kernels < 2.6.25 are borked
2989 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3646 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2990 */ 3647 */
2991 struct utsname buf; 3648 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; 3649 return;
3004 3650
3005 fs_2625 = 1; 3651 fs_2625 = 1;
3006} 3652}
3007 3653
… …
3022 if (fs_fd != -2) 3668 if (fs_fd != -2)
3023 return; 3669 return;
3024 3670
3025 fs_fd = -1; 3671 fs_fd = -1;
3026 3672
3027 check_2625 (EV_A); 3673 ev_check_2625 (EV_A);
3028 3674
3029 fs_fd = infy_newfd (); 3675 fs_fd = infy_newfd ();
3030 3676
3031 if (fs_fd >= 0) 3677 if (fs_fd >= 0)
3032 { 3678 {
… …
3057 ev_io_set (&fs_w, fs_fd, EV_READ); 3703 ev_io_set (&fs_w, fs_fd, EV_READ);
3058 ev_io_start (EV_A_ &fs_w); 3704 ev_io_start (EV_A_ &fs_w);
3059 ev_unref (EV_A); 3705 ev_unref (EV_A);
3060 } 3706 }
3061 3707
3062 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3708 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3063 { 3709 {
3064 WL w_ = fs_hash [slot].head; 3710 WL w_ = fs_hash [slot].head;
3065 fs_hash [slot].head = 0; 3711 fs_hash [slot].head = 0;
3066 3712
3067 while (w_) 3713 while (w_)
… …
3242 3888
3243 EV_FREQUENT_CHECK; 3889 EV_FREQUENT_CHECK;
3244} 3890}
3245#endif 3891#endif
3246 3892
3893#if EV_PREPARE_ENABLE
3247void 3894void
3248ev_prepare_start (EV_P_ ev_prepare *w) 3895ev_prepare_start (EV_P_ ev_prepare *w)
3249{ 3896{
3250 if (expect_false (ev_is_active (w))) 3897 if (expect_false (ev_is_active (w)))
3251 return; 3898 return;
… …
3277 3924
3278 ev_stop (EV_A_ (W)w); 3925 ev_stop (EV_A_ (W)w);
3279 3926
3280 EV_FREQUENT_CHECK; 3927 EV_FREQUENT_CHECK;
3281} 3928}
3929#endif
3282 3930
3931#if EV_CHECK_ENABLE
3283void 3932void
3284ev_check_start (EV_P_ ev_check *w) 3933ev_check_start (EV_P_ ev_check *w)
3285{ 3934{
3286 if (expect_false (ev_is_active (w))) 3935 if (expect_false (ev_is_active (w)))
3287 return; 3936 return;
… …
3313 3962
3314 ev_stop (EV_A_ (W)w); 3963 ev_stop (EV_A_ (W)w);
3315 3964
3316 EV_FREQUENT_CHECK; 3965 EV_FREQUENT_CHECK;
3317} 3966}
3967#endif
3318 3968
3319#if EV_EMBED_ENABLE 3969#if EV_EMBED_ENABLE
3320void noinline 3970void noinline
3321ev_embed_sweep (EV_P_ ev_embed *w) 3971ev_embed_sweep (EV_P_ ev_embed *w)
3322{ 3972{
3323 ev_loop (w->other, EVLOOP_NONBLOCK); 3973 ev_run (w->other, EVRUN_NOWAIT);
3324} 3974}
3325 3975
3326static void 3976static void
3327embed_io_cb (EV_P_ ev_io *io, int revents) 3977embed_io_cb (EV_P_ ev_io *io, int revents)
3328{ 3978{
3329 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3979 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3330 3980
3331 if (ev_cb (w)) 3981 if (ev_cb (w))
3332 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3982 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3333 else 3983 else
3334 ev_loop (w->other, EVLOOP_NONBLOCK); 3984 ev_run (w->other, EVRUN_NOWAIT);
3335} 3985}
3336 3986
3337static void 3987static void
3338embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3988embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3339{ 3989{
… …
3343 EV_P = w->other; 3993 EV_P = w->other;
3344 3994
3345 while (fdchangecnt) 3995 while (fdchangecnt)
3346 { 3996 {
3347 fd_reify (EV_A); 3997 fd_reify (EV_A);
3348 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3998 ev_run (EV_A_ EVRUN_NOWAIT);
3349 } 3999 }
3350 } 4000 }
3351} 4001}
3352 4002
3353static void 4003static void
… …
3359 4009
3360 { 4010 {
3361 EV_P = w->other; 4011 EV_P = w->other;
3362 4012
3363 ev_loop_fork (EV_A); 4013 ev_loop_fork (EV_A);
3364 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4014 ev_run (EV_A_ EVRUN_NOWAIT);
3365 } 4015 }
3366 4016
3367 ev_embed_start (EV_A_ w); 4017 ev_embed_start (EV_A_ w);
3368} 4018}
3369 4019
… …
3417 4067
3418 ev_io_stop (EV_A_ &w->io); 4068 ev_io_stop (EV_A_ &w->io);
3419 ev_prepare_stop (EV_A_ &w->prepare); 4069 ev_prepare_stop (EV_A_ &w->prepare);
3420 ev_fork_stop (EV_A_ &w->fork); 4070 ev_fork_stop (EV_A_ &w->fork);
3421 4071
4072 ev_stop (EV_A_ (W)w);
4073
3422 EV_FREQUENT_CHECK; 4074 EV_FREQUENT_CHECK;
3423} 4075}
3424#endif 4076#endif
3425 4077
3426#if EV_FORK_ENABLE 4078#if EV_FORK_ENABLE
… …
3459 4111
3460 EV_FREQUENT_CHECK; 4112 EV_FREQUENT_CHECK;
3461} 4113}
3462#endif 4114#endif
3463 4115
4116#if EV_CLEANUP_ENABLE
4117void
4118ev_cleanup_start (EV_P_ ev_cleanup *w)
4119{
4120 if (expect_false (ev_is_active (w)))
4121 return;
4122
4123 EV_FREQUENT_CHECK;
4124
4125 ev_start (EV_A_ (W)w, ++cleanupcnt);
4126 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4127 cleanups [cleanupcnt - 1] = w;
4128
4129 /* cleanup watchers should never keep a refcount on the loop */
4130 ev_unref (EV_A);
4131 EV_FREQUENT_CHECK;
4132}
4133
4134void
4135ev_cleanup_stop (EV_P_ ev_cleanup *w)
4136{
4137 clear_pending (EV_A_ (W)w);
4138 if (expect_false (!ev_is_active (w)))
4139 return;
4140
4141 EV_FREQUENT_CHECK;
4142 ev_ref (EV_A);
4143
4144 {
4145 int active = ev_active (w);
4146
4147 cleanups [active - 1] = cleanups [--cleanupcnt];
4148 ev_active (cleanups [active - 1]) = active;
4149 }
4150
4151 ev_stop (EV_A_ (W)w);
4152
4153 EV_FREQUENT_CHECK;
4154}
4155#endif
4156
3464#if EV_ASYNC_ENABLE 4157#if EV_ASYNC_ENABLE
3465void 4158void
3466ev_async_start (EV_P_ ev_async *w) 4159ev_async_start (EV_P_ ev_async *w)
3467{ 4160{
3468 if (expect_false (ev_is_active (w))) 4161 if (expect_false (ev_is_active (w)))
3469 return; 4162 return;
4163
4164 w->sent = 0;
3470 4165
3471 evpipe_init (EV_A); 4166 evpipe_init (EV_A);
3472 4167
3473 EV_FREQUENT_CHECK; 4168 EV_FREQUENT_CHECK;
3474 4169
… …
3552{ 4247{
3553 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4248 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3554 4249
3555 if (expect_false (!once)) 4250 if (expect_false (!once))
3556 { 4251 {
3557 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4252 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3558 return; 4253 return;
3559 } 4254 }
3560 4255
3561 once->cb = cb; 4256 once->cb = cb;
3562 once->arg = arg; 4257 once->arg = arg;
… …
3577} 4272}
3578 4273
3579/*****************************************************************************/ 4274/*****************************************************************************/
3580 4275
3581#if EV_WALK_ENABLE 4276#if EV_WALK_ENABLE
3582void 4277void ecb_cold
3583ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4278ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3584{ 4279{
3585 int i, j; 4280 int i, j;
3586 ev_watcher_list *wl, *wn; 4281 ev_watcher_list *wl, *wn;
3587 4282
… …
3631 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4326 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3632#endif 4327#endif
3633 4328
3634#if EV_IDLE_ENABLE 4329#if EV_IDLE_ENABLE
3635 if (types & EV_IDLE) 4330 if (types & EV_IDLE)
3636 for (j = NUMPRI; i--; ) 4331 for (j = NUMPRI; j--; )
3637 for (i = idlecnt [j]; i--; ) 4332 for (i = idlecnt [j]; i--; )
3638 cb (EV_A_ EV_IDLE, idles [j][i]); 4333 cb (EV_A_ EV_IDLE, idles [j][i]);
3639#endif 4334#endif
3640 4335
3641#if EV_FORK_ENABLE 4336#if EV_FORK_ENABLE
… …
3649 if (types & EV_ASYNC) 4344 if (types & EV_ASYNC)
3650 for (i = asynccnt; i--; ) 4345 for (i = asynccnt; i--; )
3651 cb (EV_A_ EV_ASYNC, asyncs [i]); 4346 cb (EV_A_ EV_ASYNC, asyncs [i]);
3652#endif 4347#endif
3653 4348
4349#if EV_PREPARE_ENABLE
3654 if (types & EV_PREPARE) 4350 if (types & EV_PREPARE)
3655 for (i = preparecnt; i--; ) 4351 for (i = preparecnt; i--; )
3656#if EV_EMBED_ENABLE 4352# if EV_EMBED_ENABLE
3657 if (ev_cb (prepares [i]) != embed_prepare_cb) 4353 if (ev_cb (prepares [i]) != embed_prepare_cb)
3658#endif 4354# endif
3659 cb (EV_A_ EV_PREPARE, prepares [i]); 4355 cb (EV_A_ EV_PREPARE, prepares [i]);
4356#endif
3660 4357
4358#if EV_CHECK_ENABLE
3661 if (types & EV_CHECK) 4359 if (types & EV_CHECK)
3662 for (i = checkcnt; i--; ) 4360 for (i = checkcnt; i--; )
3663 cb (EV_A_ EV_CHECK, checks [i]); 4361 cb (EV_A_ EV_CHECK, checks [i]);
4362#endif
3664 4363
4364#if EV_SIGNAL_ENABLE
3665 if (types & EV_SIGNAL) 4365 if (types & EV_SIGNAL)
3666 for (i = 0; i < EV_NSIG - 1; ++i) 4366 for (i = 0; i < EV_NSIG - 1; ++i)
3667 for (wl = signals [i].head; wl; ) 4367 for (wl = signals [i].head; wl; )
3668 { 4368 {
3669 wn = wl->next; 4369 wn = wl->next;
3670 cb (EV_A_ EV_SIGNAL, wl); 4370 cb (EV_A_ EV_SIGNAL, wl);
3671 wl = wn; 4371 wl = wn;
3672 } 4372 }
4373#endif
3673 4374
4375#if EV_CHILD_ENABLE
3674 if (types & EV_CHILD) 4376 if (types & EV_CHILD)
3675 for (i = EV_PID_HASHSIZE; i--; ) 4377 for (i = (EV_PID_HASHSIZE); i--; )
3676 for (wl = childs [i]; wl; ) 4378 for (wl = childs [i]; wl; )
3677 { 4379 {
3678 wn = wl->next; 4380 wn = wl->next;
3679 cb (EV_A_ EV_CHILD, wl); 4381 cb (EV_A_ EV_CHILD, wl);
3680 wl = wn; 4382 wl = wn;
3681 } 4383 }
4384#endif
3682/* EV_STAT 0x00001000 /* stat data changed */ 4385/* EV_STAT 0x00001000 /* stat data changed */
3683/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4386/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3684} 4387}
3685#endif 4388#endif
3686 4389
3687#if EV_MULTIPLICITY 4390#if EV_MULTIPLICITY
3688 #include "ev_wrap.h" 4391 #include "ev_wrap.h"
3689#endif 4392#endif
3690 4393
3691#ifdef __cplusplus 4394EV_CPP(})
3692}
3693#endif
3694 4395

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