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Comparing libev/ev.c (file contents):
Revision 1.331 by root, Tue Mar 9 08:55:03 2010 UTC vs.
Revision 1.379 by root, Sun Jun 19 17:55:13 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
116# define EV_USE_KQUEUE 1 121# ifndef EV_USE_KQUEUE
117# else 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
140# define EV_USE_SIGNALFD 1 148# ifndef EV_USE_SIGNALFD
141# else
142# define EV_USE_SIGNALFD 0 149# define EV_USE_SIGNALFD EV_FEATURE_OS
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD 1 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
176#endif 186#endif
187
188EV_CPP(extern "C" {)
177 189
178#ifndef _WIN32 190#ifndef _WIN32
179# include <sys/time.h> 191# include <sys/time.h>
180# include <sys/wait.h> 192# include <sys/wait.h>
181# include <unistd.h> 193# include <unistd.h>
… …
186# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
188# endif 200# endif
189# undef EV_AVOID_STDIO 201# undef EV_AVOID_STDIO
190#endif 202#endif
203
204/* OS X, in its infinite idiocy, actually HARDCODES
205 * a limit of 1024 into their select. Where people have brains,
206 * OS X engineers apparently have a vacuum. Or maybe they were
207 * ordered to have a vacuum, or they do anything for money.
208 * This might help. Or not.
209 */
210#define _DARWIN_UNLIMITED_SELECT 1
191 211
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 212/* this block tries to deduce configuration from header-defined symbols and defaults */
193 213
194/* try to deduce the maximum number of signals on this platform */ 214/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 215#if defined (EV_NSIG)
… …
207#elif defined (MAXSIG) 227#elif defined (MAXSIG)
208# define EV_NSIG (MAXSIG+1) 228# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 229#elif defined (MAX_SIG)
210# define EV_NSIG (MAX_SIG+1) 230# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 231#elif defined (SIGARRAYSIZE)
212# define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 233#elif defined (_sys_nsig)
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 235#else
216# error "unable to find value for NSIG, please report" 236# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line */ 237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
218# define EV_NSIG 65 239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
219#endif 244#endif
220 245
221#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
222# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
223# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
224# else 249# else
225# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
226# endif 251# endif
227#endif 252#endif
228 253
229#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
230# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
231# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
232# else 257# else
233# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
234# endif 259# endif
235#endif 260#endif
236 261
… …
238# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
239#endif 264#endif
240 265
241#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
242# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
243# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
244# else 269# else
245# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
246# endif 271# endif
247#endif 272#endif
248 273
249#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
250# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
251#endif 276#endif
252 277
253#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
254# ifdef _WIN32 279# ifdef _WIN32
255# define EV_USE_POLL 0 280# define EV_USE_POLL 0
256# else 281# else
257# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
258# endif 283# endif
259#endif 284#endif
260 285
261#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
262# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
263# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
264# else 289# else
265# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
266# endif 291# endif
267#endif 292#endif
268 293
… …
274# define EV_USE_PORT 0 299# define EV_USE_PORT 0
275#endif 300#endif
276 301
277#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
278# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
279# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
280# else 305# else
281# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
282# endif 307# endif
283#endif 308#endif
284 309
285#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
286# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
287# define EV_PID_HASHSIZE 1
288# else
289# define EV_PID_HASHSIZE 16
290# endif
291#endif 312#endif
292 313
293#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
294# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
295# define EV_INOTIFY_HASHSIZE 1
296# else
297# define EV_INOTIFY_HASHSIZE 16
298# endif
299#endif 316#endif
300 317
301#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
302# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
303# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
304# else 321# else
305# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
306# endif 323# endif
307#endif 324#endif
308 325
309#ifndef EV_USE_SIGNALFD 326#ifndef EV_USE_SIGNALFD
310# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
311# define EV_USE_SIGNALFD 1 328# define EV_USE_SIGNALFD EV_FEATURE_OS
312# else 329# else
313# define EV_USE_SIGNALFD 0 330# define EV_USE_SIGNALFD 0
314# endif 331# endif
315#endif 332#endif
316 333
… …
319# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
320# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
321#endif 338#endif
322 339
323#ifndef EV_VERIFY 340#ifndef EV_VERIFY
324# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
325#endif 342#endif
326 343
327#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
328# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
329#endif 346#endif
330 347
331#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
332# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
333#endif 350#endif
334 351
335/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
336/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
337#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
368# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
369# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
370#endif 387#endif
371 388
372#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
373# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
374# include <sys/select.h> 392# include <sys/select.h>
375# endif 393# endif
376#endif 394#endif
377 395
378#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
379# include <sys/utsname.h>
380# include <sys/statfs.h> 397# include <sys/statfs.h>
381# include <sys/inotify.h> 398# include <sys/inotify.h>
382/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
383# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
384# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
401# define EFD_CLOEXEC O_CLOEXEC 418# define EFD_CLOEXEC O_CLOEXEC
402# else 419# else
403# define EFD_CLOEXEC 02000000 420# define EFD_CLOEXEC 02000000
404# endif 421# endif
405# endif 422# endif
406# ifdef __cplusplus
407extern "C" {
408# endif
409int (eventfd) (unsigned int initval, int flags); 423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
410# ifdef __cplusplus
411}
412# endif
413#endif 424#endif
414 425
415#if EV_USE_SIGNALFD 426#if EV_USE_SIGNALFD
416/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
417# include <stdint.h> 428# include <stdint.h>
… …
423# define SFD_CLOEXEC O_CLOEXEC 434# define SFD_CLOEXEC O_CLOEXEC
424# else 435# else
425# define SFD_CLOEXEC 02000000 436# define SFD_CLOEXEC 02000000
426# endif 437# endif
427# endif 438# endif
428# ifdef __cplusplus
429extern "C" {
430# endif
431int signalfd (int fd, const sigset_t *mask, int flags); 439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
432 440
433struct signalfd_siginfo 441struct signalfd_siginfo
434{ 442{
435 uint32_t ssi_signo; 443 uint32_t ssi_signo;
436 char pad[128 - sizeof (uint32_t)]; 444 char pad[128 - sizeof (uint32_t)];
437}; 445};
438# ifdef __cplusplus
439}
440# endif 446#endif
441#endif
442
443 447
444/**/ 448/**/
445 449
446#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
447# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
448#else 452#else
449# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
450#endif 454#endif
451 455
452/* 456/*
453 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
454 * It is added to ev_rt_now when scheduling periodics
455 * to ensure progress, time-wise, even when rounding
456 * errors are against us.
457 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
458 * Better solutions welcome.
459 */ 459 */
460#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 460#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
461/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
461 462
462#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 463#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
463#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
464 465
465#if __GNUC__ >= 4 466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
466# define expect(expr,value) __builtin_expect ((expr),(value)) 467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
467# define noinline __attribute__ ((noinline)) 468
469/* the following are taken from libecb */
470/* ecb.h start */
471
472/* many compilers define _GNUC_ to some versions but then only implement
473 * what their idiot authors think are the "more important" extensions,
474 * causing enourmous grief in return for some better fake benchmark numbers.
475 * or so.
476 * we try to detect these and simply assume they are not gcc - if they have
477 * an issue with that they should have done it right in the first place.
478 */
479#ifndef ECB_GCC_VERSION
480 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
481 #define ECB_GCC_VERSION(major,minor) 0
482 #else
483 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
484 #endif
485#endif
486
487#if __cplusplus
488 #define ecb_inline static inline
489#elif ECB_GCC_VERSION(2,5)
490 #define ecb_inline static __inline__
491#elif ECB_C99
492 #define ecb_inline static inline
468#else 493#else
469# define expect(expr,value) (expr) 494 #define ecb_inline static
470# define noinline
471# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
472# define inline
473# endif 495#endif
474#endif
475 496
497#if ECB_GCC_VERSION(3,1)
498 #define ecb_attribute(attrlist) __attribute__(attrlist)
499 #define ecb_is_constant(expr) __builtin_constant_p (expr)
500 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
501 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
502#else
503 #define ecb_attribute(attrlist)
504 #define ecb_is_constant(expr) 0
505 #define ecb_expect(expr,value) (expr)
506 #define ecb_prefetch(addr,rw,locality)
507#endif
508
509#define ecb_noinline ecb_attribute ((__noinline__))
510#define ecb_noreturn ecb_attribute ((__noreturn__))
511#define ecb_unused ecb_attribute ((__unused__))
512#define ecb_const ecb_attribute ((__const__))
513#define ecb_pure ecb_attribute ((__pure__))
514
515#if ECB_GCC_VERSION(4,3)
516 #define ecb_artificial ecb_attribute ((__artificial__))
517 #define ecb_hot ecb_attribute ((__hot__))
518 #define ecb_cold ecb_attribute ((__cold__))
519#else
520 #define ecb_artificial
521 #define ecb_hot
522 #define ecb_cold
523#endif
524
525/* put around conditional expressions if you are very sure that the */
526/* expression is mostly true or mostly false. note that these return */
527/* booleans, not the expression. */
476#define expect_false(expr) expect ((expr) != 0, 0) 528#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 529#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
530/* ecb.h end */
531
532#define expect_false(cond) ecb_expect_false (cond)
533#define expect_true(cond) ecb_expect_true (cond)
534#define noinline ecb_noinline
535
478#define inline_size static inline 536#define inline_size ecb_inline
479 537
480#if EV_MINIMAL 538#if EV_FEATURE_CODE
539# define inline_speed ecb_inline
540#else
481# define inline_speed static noinline 541# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 542#endif
485 543
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 544#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 545
488#if EV_MINPRI == EV_MAXPRI 546#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 559#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 560#define ev_at(w) ((WT)(w))->at
503 561
504#if EV_USE_REALTIME 562#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 563/* sig_atomic_t is used to avoid per-thread variables or locking but still */
506/* giving it a reasonably high chance of working on typical architetcures */ 564/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 565static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 566#endif
509 567
510#if EV_USE_MONOTONIC 568#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 569static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
525# include "ev_win32.c" 583# include "ev_win32.c"
526#endif 584#endif
527 585
528/*****************************************************************************/ 586/*****************************************************************************/
529 587
588/* define a suitable floor function (only used by periodics atm) */
589
590#if EV_USE_FLOOR
591# include <math.h>
592# define ev_floor(v) floor (v)
593#else
594
595#include <float.h>
596
597/* a floor() replacement function, should be independent of ev_tstamp type */
598static ev_tstamp noinline
599ev_floor (ev_tstamp v)
600{
601 /* the choice of shift factor is not terribly important */
602#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
603 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
604#else
605 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
606#endif
607
608 /* argument too large for an unsigned long? */
609 if (expect_false (v >= shift))
610 {
611 ev_tstamp f;
612
613 if (v == v - 1.)
614 return v; /* very large number */
615
616 f = shift * ev_floor (v * (1. / shift));
617 return f + ev_floor (v - f);
618 }
619
620 /* special treatment for negative args? */
621 if (expect_false (v < 0.))
622 {
623 ev_tstamp f = -ev_floor (-v);
624
625 return f - (f == v ? 0 : 1);
626 }
627
628 /* fits into an unsigned long */
629 return (unsigned long)v;
630}
631
632#endif
633
634/*****************************************************************************/
635
636#ifdef __linux
637# include <sys/utsname.h>
638#endif
639
640static unsigned int noinline ecb_cold
641ev_linux_version (void)
642{
643#ifdef __linux
644 unsigned int v = 0;
645 struct utsname buf;
646 int i;
647 char *p = buf.release;
648
649 if (uname (&buf))
650 return 0;
651
652 for (i = 3+1; --i; )
653 {
654 unsigned int c = 0;
655
656 for (;;)
657 {
658 if (*p >= '0' && *p <= '9')
659 c = c * 10 + *p++ - '0';
660 else
661 {
662 p += *p == '.';
663 break;
664 }
665 }
666
667 v = (v << 8) | c;
668 }
669
670 return v;
671#else
672 return 0;
673#endif
674}
675
676/*****************************************************************************/
677
530#if EV_AVOID_STDIO 678#if EV_AVOID_STDIO
531static void noinline 679static void noinline ecb_cold
532ev_printerr (const char *msg) 680ev_printerr (const char *msg)
533{ 681{
534 write (STDERR_FILENO, msg, strlen (msg)); 682 write (STDERR_FILENO, msg, strlen (msg));
535} 683}
536#endif 684#endif
537 685
538static void (*syserr_cb)(const char *msg); 686static void (*syserr_cb)(const char *msg);
539 687
540void 688void ecb_cold
541ev_set_syserr_cb (void (*cb)(const char *msg)) 689ev_set_syserr_cb (void (*cb)(const char *msg))
542{ 690{
543 syserr_cb = cb; 691 syserr_cb = cb;
544} 692}
545 693
546static void noinline 694static void noinline ecb_cold
547ev_syserr (const char *msg) 695ev_syserr (const char *msg)
548{ 696{
549 if (!msg) 697 if (!msg)
550 msg = "(libev) system error"; 698 msg = "(libev) system error";
551 699
552 if (syserr_cb) 700 if (syserr_cb)
553 syserr_cb (msg); 701 syserr_cb (msg);
554 else 702 else
555 { 703 {
556#if EV_AVOID_STDIO 704#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 705 ev_printerr (msg);
560 ev_printerr (": "); 706 ev_printerr (": ");
561 ev_printerr (err); 707 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 708 ev_printerr ("\n");
563#else 709#else
564 perror (msg); 710 perror (msg);
565#endif 711#endif
566 abort (); 712 abort ();
… …
568} 714}
569 715
570static void * 716static void *
571ev_realloc_emul (void *ptr, long size) 717ev_realloc_emul (void *ptr, long size)
572{ 718{
719#if __GLIBC__
720 return realloc (ptr, size);
721#else
573 /* some systems, notably openbsd and darwin, fail to properly 722 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 723 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 724 * the single unix specification, so work around them here.
576 */ 725 */
577 726
578 if (size) 727 if (size)
579 return realloc (ptr, size); 728 return realloc (ptr, size);
580 729
581 free (ptr); 730 free (ptr);
582 return 0; 731 return 0;
732#endif
583} 733}
584 734
585static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 735static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
586 736
587void 737void ecb_cold
588ev_set_allocator (void *(*cb)(void *ptr, long size)) 738ev_set_allocator (void *(*cb)(void *ptr, long size))
589{ 739{
590 alloc = cb; 740 alloc = cb;
591} 741}
592 742
… …
596 ptr = alloc (ptr, size); 746 ptr = alloc (ptr, size);
597 747
598 if (!ptr && size) 748 if (!ptr && size)
599 { 749 {
600#if EV_AVOID_STDIO 750#if EV_AVOID_STDIO
601 ev_printerr ("libev: memory allocation failed, aborting.\n"); 751 ev_printerr ("(libev) memory allocation failed, aborting.\n");
602#else 752#else
603 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 753 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
604#endif 754#endif
605 abort (); 755 abort ();
606 } 756 }
607 757
608 return ptr; 758 return ptr;
… …
625 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 775 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
626 unsigned char unused; 776 unsigned char unused;
627#if EV_USE_EPOLL 777#if EV_USE_EPOLL
628 unsigned int egen; /* generation counter to counter epoll bugs */ 778 unsigned int egen; /* generation counter to counter epoll bugs */
629#endif 779#endif
630#if EV_SELECT_IS_WINSOCKET 780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
631 SOCKET handle; 781 SOCKET handle;
782#endif
783#if EV_USE_IOCP
784 OVERLAPPED or, ow;
632#endif 785#endif
633} ANFD; 786} ANFD;
634 787
635/* stores the pending event set for a given watcher */ 788/* stores the pending event set for a given watcher */
636typedef struct 789typedef struct
… …
691 844
692 static int ev_default_loop_ptr; 845 static int ev_default_loop_ptr;
693 846
694#endif 847#endif
695 848
696#if EV_MINIMAL < 2 849#if EV_FEATURE_API
697# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 850# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
698# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 851# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
699# define EV_INVOKE_PENDING invoke_cb (EV_A) 852# define EV_INVOKE_PENDING invoke_cb (EV_A)
700#else 853#else
701# define EV_RELEASE_CB (void)0 854# define EV_RELEASE_CB (void)0
702# define EV_ACQUIRE_CB (void)0 855# define EV_ACQUIRE_CB (void)0
703# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
704#endif 857#endif
705 858
706#define EVUNLOOP_RECURSE 0x80 859#define EVBREAK_RECURSE 0x80
707 860
708/*****************************************************************************/ 861/*****************************************************************************/
709 862
710#ifndef EV_HAVE_EV_TIME 863#ifndef EV_HAVE_EV_TIME
711ev_tstamp 864ev_tstamp
… …
755 if (delay > 0.) 908 if (delay > 0.)
756 { 909 {
757#if EV_USE_NANOSLEEP 910#if EV_USE_NANOSLEEP
758 struct timespec ts; 911 struct timespec ts;
759 912
760 ts.tv_sec = (time_t)delay; 913 EV_TS_SET (ts, delay);
761 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
762
763 nanosleep (&ts, 0); 914 nanosleep (&ts, 0);
764#elif defined(_WIN32) 915#elif defined(_WIN32)
765 Sleep ((unsigned long)(delay * 1e3)); 916 Sleep ((unsigned long)(delay * 1e3));
766#else 917#else
767 struct timeval tv; 918 struct timeval tv;
768 919
769 tv.tv_sec = (time_t)delay;
770 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
771
772 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 920 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
773 /* something not guaranteed by newer posix versions, but guaranteed */ 921 /* something not guaranteed by newer posix versions, but guaranteed */
774 /* by older ones */ 922 /* by older ones */
923 EV_TV_SET (tv, delay);
775 select (0, 0, 0, 0, &tv); 924 select (0, 0, 0, 0, &tv);
776#endif 925#endif
777 } 926 }
778} 927}
779 928
780/*****************************************************************************/ 929/*****************************************************************************/
781 930
782#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 931#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
783 932
784/* find a suitable new size for the given array, */ 933/* find a suitable new size for the given array, */
785/* hopefully by rounding to a ncie-to-malloc size */ 934/* hopefully by rounding to a nice-to-malloc size */
786inline_size int 935inline_size int
787array_nextsize (int elem, int cur, int cnt) 936array_nextsize (int elem, int cur, int cnt)
788{ 937{
789 int ncur = cur + 1; 938 int ncur = cur + 1;
790 939
… …
802 } 951 }
803 952
804 return ncur; 953 return ncur;
805} 954}
806 955
807static noinline void * 956static void * noinline ecb_cold
808array_realloc (int elem, void *base, int *cur, int cnt) 957array_realloc (int elem, void *base, int *cur, int cnt)
809{ 958{
810 *cur = array_nextsize (elem, *cur, cnt); 959 *cur = array_nextsize (elem, *cur, cnt);
811 return ev_realloc (base, elem * *cur); 960 return ev_realloc (base, elem * *cur);
812} 961}
… …
886} 1035}
887 1036
888/*****************************************************************************/ 1037/*****************************************************************************/
889 1038
890inline_speed void 1039inline_speed void
891fd_event_nc (EV_P_ int fd, int revents) 1040fd_event_nocheck (EV_P_ int fd, int revents)
892{ 1041{
893 ANFD *anfd = anfds + fd; 1042 ANFD *anfd = anfds + fd;
894 ev_io *w; 1043 ev_io *w;
895 1044
896 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1045 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
908fd_event (EV_P_ int fd, int revents) 1057fd_event (EV_P_ int fd, int revents)
909{ 1058{
910 ANFD *anfd = anfds + fd; 1059 ANFD *anfd = anfds + fd;
911 1060
912 if (expect_true (!anfd->reify)) 1061 if (expect_true (!anfd->reify))
913 fd_event_nc (EV_A_ fd, revents); 1062 fd_event_nocheck (EV_A_ fd, revents);
914} 1063}
915 1064
916void 1065void
917ev_feed_fd_event (EV_P_ int fd, int revents) 1066ev_feed_fd_event (EV_P_ int fd, int revents)
918{ 1067{
919 if (fd >= 0 && fd < anfdmax) 1068 if (fd >= 0 && fd < anfdmax)
920 fd_event_nc (EV_A_ fd, revents); 1069 fd_event_nocheck (EV_A_ fd, revents);
921} 1070}
922 1071
923/* make sure the external fd watch events are in-sync */ 1072/* make sure the external fd watch events are in-sync */
924/* with the kernel/libev internal state */ 1073/* with the kernel/libev internal state */
925inline_size void 1074inline_size void
926fd_reify (EV_P) 1075fd_reify (EV_P)
927{ 1076{
928 int i; 1077 int i;
929 1078
1079#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1080 for (i = 0; i < fdchangecnt; ++i)
1081 {
1082 int fd = fdchanges [i];
1083 ANFD *anfd = anfds + fd;
1084
1085 if (anfd->reify & EV__IOFDSET && anfd->head)
1086 {
1087 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1088
1089 if (handle != anfd->handle)
1090 {
1091 unsigned long arg;
1092
1093 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1094
1095 /* handle changed, but fd didn't - we need to do it in two steps */
1096 backend_modify (EV_A_ fd, anfd->events, 0);
1097 anfd->events = 0;
1098 anfd->handle = handle;
1099 }
1100 }
1101 }
1102#endif
1103
930 for (i = 0; i < fdchangecnt; ++i) 1104 for (i = 0; i < fdchangecnt; ++i)
931 { 1105 {
932 int fd = fdchanges [i]; 1106 int fd = fdchanges [i];
933 ANFD *anfd = anfds + fd; 1107 ANFD *anfd = anfds + fd;
934 ev_io *w; 1108 ev_io *w;
935 1109
936 unsigned char events = 0; 1110 unsigned char o_events = anfd->events;
1111 unsigned char o_reify = anfd->reify;
937 1112
938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1113 anfd->reify = 0;
939 events |= (unsigned char)w->events;
940 1114
941#if EV_SELECT_IS_WINSOCKET 1115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
942 if (events)
943 { 1116 {
944 unsigned long arg; 1117 anfd->events = 0;
945 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1118
946 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1119 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1120 anfd->events |= (unsigned char)w->events;
1121
1122 if (o_events != anfd->events)
1123 o_reify = EV__IOFDSET; /* actually |= */
947 } 1124 }
948#endif
949 1125
950 { 1126 if (o_reify & EV__IOFDSET)
951 unsigned char o_events = anfd->events;
952 unsigned char o_reify = anfd->reify;
953
954 anfd->reify = 0;
955 anfd->events = events;
956
957 if (o_events != events || o_reify & EV__IOFDSET)
958 backend_modify (EV_A_ fd, o_events, events); 1127 backend_modify (EV_A_ fd, o_events, anfd->events);
959 }
960 } 1128 }
961 1129
962 fdchangecnt = 0; 1130 fdchangecnt = 0;
963} 1131}
964 1132
… …
976 fdchanges [fdchangecnt - 1] = fd; 1144 fdchanges [fdchangecnt - 1] = fd;
977 } 1145 }
978} 1146}
979 1147
980/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1148/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
981inline_speed void 1149inline_speed void ecb_cold
982fd_kill (EV_P_ int fd) 1150fd_kill (EV_P_ int fd)
983{ 1151{
984 ev_io *w; 1152 ev_io *w;
985 1153
986 while ((w = (ev_io *)anfds [fd].head)) 1154 while ((w = (ev_io *)anfds [fd].head))
… …
988 ev_io_stop (EV_A_ w); 1156 ev_io_stop (EV_A_ w);
989 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1157 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
990 } 1158 }
991} 1159}
992 1160
993/* check whether the given fd is atcually valid, for error recovery */ 1161/* check whether the given fd is actually valid, for error recovery */
994inline_size int 1162inline_size int ecb_cold
995fd_valid (int fd) 1163fd_valid (int fd)
996{ 1164{
997#ifdef _WIN32 1165#ifdef _WIN32
998 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1166 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
999#else 1167#else
1000 return fcntl (fd, F_GETFD) != -1; 1168 return fcntl (fd, F_GETFD) != -1;
1001#endif 1169#endif
1002} 1170}
1003 1171
1004/* called on EBADF to verify fds */ 1172/* called on EBADF to verify fds */
1005static void noinline 1173static void noinline ecb_cold
1006fd_ebadf (EV_P) 1174fd_ebadf (EV_P)
1007{ 1175{
1008 int fd; 1176 int fd;
1009 1177
1010 for (fd = 0; fd < anfdmax; ++fd) 1178 for (fd = 0; fd < anfdmax; ++fd)
… …
1012 if (!fd_valid (fd) && errno == EBADF) 1180 if (!fd_valid (fd) && errno == EBADF)
1013 fd_kill (EV_A_ fd); 1181 fd_kill (EV_A_ fd);
1014} 1182}
1015 1183
1016/* called on ENOMEM in select/poll to kill some fds and retry */ 1184/* called on ENOMEM in select/poll to kill some fds and retry */
1017static void noinline 1185static void noinline ecb_cold
1018fd_enomem (EV_P) 1186fd_enomem (EV_P)
1019{ 1187{
1020 int fd; 1188 int fd;
1021 1189
1022 for (fd = anfdmax; fd--; ) 1190 for (fd = anfdmax; fd--; )
… …
1040 anfds [fd].emask = 0; 1208 anfds [fd].emask = 0;
1041 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1209 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1042 } 1210 }
1043} 1211}
1044 1212
1213/* used to prepare libev internal fd's */
1214/* this is not fork-safe */
1215inline_speed void
1216fd_intern (int fd)
1217{
1218#ifdef _WIN32
1219 unsigned long arg = 1;
1220 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1221#else
1222 fcntl (fd, F_SETFD, FD_CLOEXEC);
1223 fcntl (fd, F_SETFL, O_NONBLOCK);
1224#endif
1225}
1226
1045/*****************************************************************************/ 1227/*****************************************************************************/
1046 1228
1047/* 1229/*
1048 * the heap functions want a real array index. array index 0 uis guaranteed to not 1230 * the heap functions want a real array index. array index 0 is guaranteed to not
1049 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1231 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1050 * the branching factor of the d-tree. 1232 * the branching factor of the d-tree.
1051 */ 1233 */
1052 1234
1053/* 1235/*
… …
1201 1383
1202static ANSIG signals [EV_NSIG - 1]; 1384static ANSIG signals [EV_NSIG - 1];
1203 1385
1204/*****************************************************************************/ 1386/*****************************************************************************/
1205 1387
1206/* used to prepare libev internal fd's */ 1388#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1207/* this is not fork-safe */
1208inline_speed void
1209fd_intern (int fd)
1210{
1211#ifdef _WIN32
1212 unsigned long arg = 1;
1213 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1214#else
1215 fcntl (fd, F_SETFD, FD_CLOEXEC);
1216 fcntl (fd, F_SETFL, O_NONBLOCK);
1217#endif
1218}
1219 1389
1220static void noinline 1390static void noinline ecb_cold
1221evpipe_init (EV_P) 1391evpipe_init (EV_P)
1222{ 1392{
1223 if (!ev_is_active (&pipe_w)) 1393 if (!ev_is_active (&pipe_w))
1224 { 1394 {
1225#if EV_USE_EVENTFD 1395# if EV_USE_EVENTFD
1226 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1396 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1227 if (evfd < 0 && errno == EINVAL) 1397 if (evfd < 0 && errno == EINVAL)
1228 evfd = eventfd (0, 0); 1398 evfd = eventfd (0, 0);
1229 1399
1230 if (evfd >= 0) 1400 if (evfd >= 0)
… …
1232 evpipe [0] = -1; 1402 evpipe [0] = -1;
1233 fd_intern (evfd); /* doing it twice doesn't hurt */ 1403 fd_intern (evfd); /* doing it twice doesn't hurt */
1234 ev_io_set (&pipe_w, evfd, EV_READ); 1404 ev_io_set (&pipe_w, evfd, EV_READ);
1235 } 1405 }
1236 else 1406 else
1237#endif 1407# endif
1238 { 1408 {
1239 while (pipe (evpipe)) 1409 while (pipe (evpipe))
1240 ev_syserr ("(libev) error creating signal/async pipe"); 1410 ev_syserr ("(libev) error creating signal/async pipe");
1241 1411
1242 fd_intern (evpipe [0]); 1412 fd_intern (evpipe [0]);
… …
1252inline_size void 1422inline_size void
1253evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1423evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1254{ 1424{
1255 if (!*flag) 1425 if (!*flag)
1256 { 1426 {
1257 int old_errno = errno; /* save errno because write might clobber it */
1258
1259 *flag = 1; 1427 *flag = 1;
1260 1428
1429 pipe_write_skipped = 1;
1430
1431 if (pipe_write_wanted)
1432 {
1433 int old_errno = errno; /* save errno because write will clobber it */
1434 char dummy;
1435
1436 pipe_write_skipped = 0;
1437
1261#if EV_USE_EVENTFD 1438#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1439 if (evfd >= 0)
1263 { 1440 {
1264 uint64_t counter = 1; 1441 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1442 write (evfd, &counter, sizeof (uint64_t));
1443 }
1444 else
1445#endif
1446 {
1447 /* win32 people keep sending patches that change this write() to send() */
1448 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1449 /* so when you think this write should be a send instead, please find out */
1450 /* where your send() is from - it's definitely not the microsoft send, and */
1451 /* tell me. thank you. */
1452 write (evpipe [1], &dummy, 1);
1453 }
1454
1455 errno = old_errno;
1266 } 1456 }
1267 else
1268#endif
1269 write (evpipe [1], &old_errno, 1);
1270
1271 errno = old_errno;
1272 } 1457 }
1273} 1458}
1274 1459
1275/* called whenever the libev signal pipe */ 1460/* called whenever the libev signal pipe */
1276/* got some events (signal, async) */ 1461/* got some events (signal, async) */
1277static void 1462static void
1278pipecb (EV_P_ ev_io *iow, int revents) 1463pipecb (EV_P_ ev_io *iow, int revents)
1279{ 1464{
1280 int i; 1465 int i;
1281 1466
1467 if (revents & EV_READ)
1468 {
1282#if EV_USE_EVENTFD 1469#if EV_USE_EVENTFD
1283 if (evfd >= 0) 1470 if (evfd >= 0)
1284 { 1471 {
1285 uint64_t counter; 1472 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 1473 read (evfd, &counter, sizeof (uint64_t));
1287 } 1474 }
1288 else 1475 else
1289#endif 1476#endif
1290 { 1477 {
1291 char dummy; 1478 char dummy;
1479 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1292 read (evpipe [0], &dummy, 1); 1480 read (evpipe [0], &dummy, 1);
1481 }
1293 } 1482 }
1294 1483
1484 pipe_write_skipped = 0;
1485
1486#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1487 if (sig_pending)
1296 { 1488 {
1297 sig_pending = 0; 1489 sig_pending = 0;
1298 1490
1299 for (i = EV_NSIG - 1; i--; ) 1491 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1492 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1493 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1494 }
1495#endif
1303 1496
1304#if EV_ASYNC_ENABLE 1497#if EV_ASYNC_ENABLE
1305 if (async_pending) 1498 if (async_pending)
1306 { 1499 {
1307 async_pending = 0; 1500 async_pending = 0;
… …
1316#endif 1509#endif
1317} 1510}
1318 1511
1319/*****************************************************************************/ 1512/*****************************************************************************/
1320 1513
1514void
1515ev_feed_signal (int signum)
1516{
1517#if EV_MULTIPLICITY
1518 EV_P = signals [signum - 1].loop;
1519
1520 if (!EV_A)
1521 return;
1522#endif
1523
1524 evpipe_init (EV_A);
1525
1526 signals [signum - 1].pending = 1;
1527 evpipe_write (EV_A_ &sig_pending);
1528}
1529
1321static void 1530static void
1322ev_sighandler (int signum) 1531ev_sighandler (int signum)
1323{ 1532{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 1533#ifdef _WIN32
1329 signal (signum, ev_sighandler); 1534 signal (signum, ev_sighandler);
1330#endif 1535#endif
1331 1536
1332 signals [signum - 1].pending = 1; 1537 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 1538}
1335 1539
1336void noinline 1540void noinline
1337ev_feed_signal_event (EV_P_ int signum) 1541ev_feed_signal_event (EV_P_ int signum)
1338{ 1542{
… …
1375 break; 1579 break;
1376 } 1580 }
1377} 1581}
1378#endif 1582#endif
1379 1583
1584#endif
1585
1380/*****************************************************************************/ 1586/*****************************************************************************/
1381 1587
1588#if EV_CHILD_ENABLE
1382static WL childs [EV_PID_HASHSIZE]; 1589static WL childs [EV_PID_HASHSIZE];
1383
1384#ifndef _WIN32
1385 1590
1386static ev_signal childev; 1591static ev_signal childev;
1387 1592
1388#ifndef WIFCONTINUED 1593#ifndef WIFCONTINUED
1389# define WIFCONTINUED(status) 0 1594# define WIFCONTINUED(status) 0
… …
1394child_reap (EV_P_ int chain, int pid, int status) 1599child_reap (EV_P_ int chain, int pid, int status)
1395{ 1600{
1396 ev_child *w; 1601 ev_child *w;
1397 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1602 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1398 1603
1399 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1604 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1400 { 1605 {
1401 if ((w->pid == pid || !w->pid) 1606 if ((w->pid == pid || !w->pid)
1402 && (!traced || (w->flags & 1))) 1607 && (!traced || (w->flags & 1)))
1403 { 1608 {
1404 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1609 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1429 /* make sure we are called again until all children have been reaped */ 1634 /* make sure we are called again until all children have been reaped */
1430 /* we need to do it this way so that the callback gets called before we continue */ 1635 /* we need to do it this way so that the callback gets called before we continue */
1431 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1636 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1432 1637
1433 child_reap (EV_A_ pid, pid, status); 1638 child_reap (EV_A_ pid, pid, status);
1434 if (EV_PID_HASHSIZE > 1) 1639 if ((EV_PID_HASHSIZE) > 1)
1435 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1640 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1436} 1641}
1437 1642
1438#endif 1643#endif
1439 1644
1440/*****************************************************************************/ 1645/*****************************************************************************/
1441 1646
1647#if EV_USE_IOCP
1648# include "ev_iocp.c"
1649#endif
1442#if EV_USE_PORT 1650#if EV_USE_PORT
1443# include "ev_port.c" 1651# include "ev_port.c"
1444#endif 1652#endif
1445#if EV_USE_KQUEUE 1653#if EV_USE_KQUEUE
1446# include "ev_kqueue.c" 1654# include "ev_kqueue.c"
… …
1453#endif 1661#endif
1454#if EV_USE_SELECT 1662#if EV_USE_SELECT
1455# include "ev_select.c" 1663# include "ev_select.c"
1456#endif 1664#endif
1457 1665
1458int 1666int ecb_cold
1459ev_version_major (void) 1667ev_version_major (void)
1460{ 1668{
1461 return EV_VERSION_MAJOR; 1669 return EV_VERSION_MAJOR;
1462} 1670}
1463 1671
1464int 1672int ecb_cold
1465ev_version_minor (void) 1673ev_version_minor (void)
1466{ 1674{
1467 return EV_VERSION_MINOR; 1675 return EV_VERSION_MINOR;
1468} 1676}
1469 1677
1470/* return true if we are running with elevated privileges and should ignore env variables */ 1678/* return true if we are running with elevated privileges and should ignore env variables */
1471int inline_size 1679int inline_size ecb_cold
1472enable_secure (void) 1680enable_secure (void)
1473{ 1681{
1474#ifdef _WIN32 1682#ifdef _WIN32
1475 return 0; 1683 return 0;
1476#else 1684#else
1477 return getuid () != geteuid () 1685 return getuid () != geteuid ()
1478 || getgid () != getegid (); 1686 || getgid () != getegid ();
1479#endif 1687#endif
1480} 1688}
1481 1689
1482unsigned int 1690unsigned int ecb_cold
1483ev_supported_backends (void) 1691ev_supported_backends (void)
1484{ 1692{
1485 unsigned int flags = 0; 1693 unsigned int flags = 0;
1486 1694
1487 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1695 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1491 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1699 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1492 1700
1493 return flags; 1701 return flags;
1494} 1702}
1495 1703
1496unsigned int 1704unsigned int ecb_cold
1497ev_recommended_backends (void) 1705ev_recommended_backends (void)
1498{ 1706{
1499 unsigned int flags = ev_supported_backends (); 1707 unsigned int flags = ev_supported_backends ();
1500 1708
1501#ifndef __NetBSD__ 1709#ifndef __NetBSD__
… …
1506#ifdef __APPLE__ 1714#ifdef __APPLE__
1507 /* only select works correctly on that "unix-certified" platform */ 1715 /* only select works correctly on that "unix-certified" platform */
1508 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1716 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1509 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1717 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1510#endif 1718#endif
1719#ifdef __FreeBSD__
1720 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1721#endif
1511 1722
1512 return flags; 1723 return flags;
1513} 1724}
1514 1725
1515unsigned int 1726unsigned int ecb_cold
1516ev_embeddable_backends (void) 1727ev_embeddable_backends (void)
1517{ 1728{
1518 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1729 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1519 1730
1520 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1731 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1521 /* please fix it and tell me how to detect the fix */ 1732 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1522 flags &= ~EVBACKEND_EPOLL; 1733 flags &= ~EVBACKEND_EPOLL;
1523 1734
1524 return flags; 1735 return flags;
1525} 1736}
1526 1737
1527unsigned int 1738unsigned int
1528ev_backend (EV_P) 1739ev_backend (EV_P)
1529{ 1740{
1530 return backend; 1741 return backend;
1531} 1742}
1532 1743
1533#if EV_MINIMAL < 2 1744#if EV_FEATURE_API
1534unsigned int 1745unsigned int
1535ev_loop_count (EV_P) 1746ev_iteration (EV_P)
1536{ 1747{
1537 return loop_count; 1748 return loop_count;
1538} 1749}
1539 1750
1540unsigned int 1751unsigned int
1541ev_loop_depth (EV_P) 1752ev_depth (EV_P)
1542{ 1753{
1543 return loop_depth; 1754 return loop_depth;
1544} 1755}
1545 1756
1546void 1757void
… …
1565ev_userdata (EV_P) 1776ev_userdata (EV_P)
1566{ 1777{
1567 return userdata; 1778 return userdata;
1568} 1779}
1569 1780
1781void
1570void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 1782ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1571{ 1783{
1572 invoke_cb = invoke_pending_cb; 1784 invoke_cb = invoke_pending_cb;
1573} 1785}
1574 1786
1787void
1575void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 1788ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1576{ 1789{
1577 release_cb = release; 1790 release_cb = release;
1578 acquire_cb = acquire; 1791 acquire_cb = acquire;
1579} 1792}
1580#endif 1793#endif
1581 1794
1582/* initialise a loop structure, must be zero-initialised */ 1795/* initialise a loop structure, must be zero-initialised */
1583static void noinline 1796static void noinline ecb_cold
1584loop_init (EV_P_ unsigned int flags) 1797loop_init (EV_P_ unsigned int flags)
1585{ 1798{
1586 if (!backend) 1799 if (!backend)
1587 { 1800 {
1801 origflags = flags;
1802
1588#if EV_USE_REALTIME 1803#if EV_USE_REALTIME
1589 if (!have_realtime) 1804 if (!have_realtime)
1590 { 1805 {
1591 struct timespec ts; 1806 struct timespec ts;
1592 1807
… …
1614 if (!(flags & EVFLAG_NOENV) 1829 if (!(flags & EVFLAG_NOENV)
1615 && !enable_secure () 1830 && !enable_secure ()
1616 && getenv ("LIBEV_FLAGS")) 1831 && getenv ("LIBEV_FLAGS"))
1617 flags = atoi (getenv ("LIBEV_FLAGS")); 1832 flags = atoi (getenv ("LIBEV_FLAGS"));
1618 1833
1619 ev_rt_now = ev_time (); 1834 ev_rt_now = ev_time ();
1620 mn_now = get_clock (); 1835 mn_now = get_clock ();
1621 now_floor = mn_now; 1836 now_floor = mn_now;
1622 rtmn_diff = ev_rt_now - mn_now; 1837 rtmn_diff = ev_rt_now - mn_now;
1623#if EV_MINIMAL < 2 1838#if EV_FEATURE_API
1624 invoke_cb = ev_invoke_pending; 1839 invoke_cb = ev_invoke_pending;
1625#endif 1840#endif
1626 1841
1627 io_blocktime = 0.; 1842 io_blocktime = 0.;
1628 timeout_blocktime = 0.; 1843 timeout_blocktime = 0.;
1629 backend = 0; 1844 backend = 0;
1630 backend_fd = -1; 1845 backend_fd = -1;
1631 sig_pending = 0; 1846 sig_pending = 0;
1632#if EV_ASYNC_ENABLE 1847#if EV_ASYNC_ENABLE
1633 async_pending = 0; 1848 async_pending = 0;
1634#endif 1849#endif
1850 pipe_write_skipped = 0;
1851 pipe_write_wanted = 0;
1635#if EV_USE_INOTIFY 1852#if EV_USE_INOTIFY
1636 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 1853 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1637#endif 1854#endif
1638#if EV_USE_SIGNALFD 1855#if EV_USE_SIGNALFD
1639 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1856 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1640#endif 1857#endif
1641 1858
1642 if (!(flags & 0x0000ffffU)) 1859 if (!(flags & EVBACKEND_MASK))
1643 flags |= ev_recommended_backends (); 1860 flags |= ev_recommended_backends ();
1644 1861
1862#if EV_USE_IOCP
1863 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1864#endif
1645#if EV_USE_PORT 1865#if EV_USE_PORT
1646 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1866 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1647#endif 1867#endif
1648#if EV_USE_KQUEUE 1868#if EV_USE_KQUEUE
1649 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1869 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1658 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1878 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1659#endif 1879#endif
1660 1880
1661 ev_prepare_init (&pending_w, pendingcb); 1881 ev_prepare_init (&pending_w, pendingcb);
1662 1882
1883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1663 ev_init (&pipe_w, pipecb); 1884 ev_init (&pipe_w, pipecb);
1664 ev_set_priority (&pipe_w, EV_MAXPRI); 1885 ev_set_priority (&pipe_w, EV_MAXPRI);
1886#endif
1665 } 1887 }
1666} 1888}
1667 1889
1668/* free up a loop structure */ 1890/* free up a loop structure */
1669static void noinline 1891void ecb_cold
1670loop_destroy (EV_P) 1892ev_loop_destroy (EV_P)
1671{ 1893{
1672 int i; 1894 int i;
1895
1896#if EV_MULTIPLICITY
1897 /* mimic free (0) */
1898 if (!EV_A)
1899 return;
1900#endif
1901
1902#if EV_CLEANUP_ENABLE
1903 /* queue cleanup watchers (and execute them) */
1904 if (expect_false (cleanupcnt))
1905 {
1906 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1907 EV_INVOKE_PENDING;
1908 }
1909#endif
1910
1911#if EV_CHILD_ENABLE
1912 if (ev_is_active (&childev))
1913 {
1914 ev_ref (EV_A); /* child watcher */
1915 ev_signal_stop (EV_A_ &childev);
1916 }
1917#endif
1673 1918
1674 if (ev_is_active (&pipe_w)) 1919 if (ev_is_active (&pipe_w))
1675 { 1920 {
1676 /*ev_ref (EV_A);*/ 1921 /*ev_ref (EV_A);*/
1677 /*ev_io_stop (EV_A_ &pipe_w);*/ 1922 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1699#endif 1944#endif
1700 1945
1701 if (backend_fd >= 0) 1946 if (backend_fd >= 0)
1702 close (backend_fd); 1947 close (backend_fd);
1703 1948
1949#if EV_USE_IOCP
1950 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1951#endif
1704#if EV_USE_PORT 1952#if EV_USE_PORT
1705 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1953 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1706#endif 1954#endif
1707#if EV_USE_KQUEUE 1955#if EV_USE_KQUEUE
1708 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1956 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1735 array_free (periodic, EMPTY); 1983 array_free (periodic, EMPTY);
1736#endif 1984#endif
1737#if EV_FORK_ENABLE 1985#if EV_FORK_ENABLE
1738 array_free (fork, EMPTY); 1986 array_free (fork, EMPTY);
1739#endif 1987#endif
1988#if EV_CLEANUP_ENABLE
1989 array_free (cleanup, EMPTY);
1990#endif
1740 array_free (prepare, EMPTY); 1991 array_free (prepare, EMPTY);
1741 array_free (check, EMPTY); 1992 array_free (check, EMPTY);
1742#if EV_ASYNC_ENABLE 1993#if EV_ASYNC_ENABLE
1743 array_free (async, EMPTY); 1994 array_free (async, EMPTY);
1744#endif 1995#endif
1745 1996
1746 backend = 0; 1997 backend = 0;
1998
1999#if EV_MULTIPLICITY
2000 if (ev_is_default_loop (EV_A))
2001#endif
2002 ev_default_loop_ptr = 0;
2003#if EV_MULTIPLICITY
2004 else
2005 ev_free (EV_A);
2006#endif
1747} 2007}
1748 2008
1749#if EV_USE_INOTIFY 2009#if EV_USE_INOTIFY
1750inline_size void infy_fork (EV_P); 2010inline_size void infy_fork (EV_P);
1751#endif 2011#endif
… …
1766 infy_fork (EV_A); 2026 infy_fork (EV_A);
1767#endif 2027#endif
1768 2028
1769 if (ev_is_active (&pipe_w)) 2029 if (ev_is_active (&pipe_w))
1770 { 2030 {
1771 /* this "locks" the handlers against writing to the pipe */ 2031 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1772 /* while we modify the fd vars */
1773 sig_pending = 1;
1774#if EV_ASYNC_ENABLE
1775 async_pending = 1;
1776#endif
1777 2032
1778 ev_ref (EV_A); 2033 ev_ref (EV_A);
1779 ev_io_stop (EV_A_ &pipe_w); 2034 ev_io_stop (EV_A_ &pipe_w);
1780 2035
1781#if EV_USE_EVENTFD 2036#if EV_USE_EVENTFD
… …
1787 { 2042 {
1788 EV_WIN32_CLOSE_FD (evpipe [0]); 2043 EV_WIN32_CLOSE_FD (evpipe [0]);
1789 EV_WIN32_CLOSE_FD (evpipe [1]); 2044 EV_WIN32_CLOSE_FD (evpipe [1]);
1790 } 2045 }
1791 2046
2047#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1792 evpipe_init (EV_A); 2048 evpipe_init (EV_A);
1793 /* now iterate over everything, in case we missed something */ 2049 /* now iterate over everything, in case we missed something */
1794 pipecb (EV_A_ &pipe_w, EV_READ); 2050 pipecb (EV_A_ &pipe_w, EV_READ);
2051#endif
1795 } 2052 }
1796 2053
1797 postfork = 0; 2054 postfork = 0;
1798} 2055}
1799 2056
1800#if EV_MULTIPLICITY 2057#if EV_MULTIPLICITY
1801 2058
1802struct ev_loop * 2059struct ev_loop * ecb_cold
1803ev_loop_new (unsigned int flags) 2060ev_loop_new (unsigned int flags)
1804{ 2061{
1805 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2062 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1806 2063
1807 memset (EV_A, 0, sizeof (struct ev_loop)); 2064 memset (EV_A, 0, sizeof (struct ev_loop));
1808 loop_init (EV_A_ flags); 2065 loop_init (EV_A_ flags);
1809 2066
1810 if (ev_backend (EV_A)) 2067 if (ev_backend (EV_A))
1811 return EV_A; 2068 return EV_A;
1812 2069
2070 ev_free (EV_A);
1813 return 0; 2071 return 0;
1814} 2072}
1815 2073
1816void
1817ev_loop_destroy (EV_P)
1818{
1819 loop_destroy (EV_A);
1820 ev_free (loop);
1821}
1822
1823void
1824ev_loop_fork (EV_P)
1825{
1826 postfork = 1; /* must be in line with ev_default_fork */
1827}
1828#endif /* multiplicity */ 2074#endif /* multiplicity */
1829 2075
1830#if EV_VERIFY 2076#if EV_VERIFY
1831static void noinline 2077static void noinline ecb_cold
1832verify_watcher (EV_P_ W w) 2078verify_watcher (EV_P_ W w)
1833{ 2079{
1834 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2080 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1835 2081
1836 if (w->pending) 2082 if (w->pending)
1837 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2083 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1838} 2084}
1839 2085
1840static void noinline 2086static void noinline ecb_cold
1841verify_heap (EV_P_ ANHE *heap, int N) 2087verify_heap (EV_P_ ANHE *heap, int N)
1842{ 2088{
1843 int i; 2089 int i;
1844 2090
1845 for (i = HEAP0; i < N + HEAP0; ++i) 2091 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1850 2096
1851 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2097 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1852 } 2098 }
1853} 2099}
1854 2100
1855static void noinline 2101static void noinline ecb_cold
1856array_verify (EV_P_ W *ws, int cnt) 2102array_verify (EV_P_ W *ws, int cnt)
1857{ 2103{
1858 while (cnt--) 2104 while (cnt--)
1859 { 2105 {
1860 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2106 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1861 verify_watcher (EV_A_ ws [cnt]); 2107 verify_watcher (EV_A_ ws [cnt]);
1862 } 2108 }
1863} 2109}
1864#endif 2110#endif
1865 2111
1866#if EV_MINIMAL < 2 2112#if EV_FEATURE_API
1867void 2113void ecb_cold
1868ev_loop_verify (EV_P) 2114ev_verify (EV_P)
1869{ 2115{
1870#if EV_VERIFY 2116#if EV_VERIFY
1871 int i; 2117 int i;
1872 WL w; 2118 WL w;
1873 2119
… …
1907#if EV_FORK_ENABLE 2153#if EV_FORK_ENABLE
1908 assert (forkmax >= forkcnt); 2154 assert (forkmax >= forkcnt);
1909 array_verify (EV_A_ (W *)forks, forkcnt); 2155 array_verify (EV_A_ (W *)forks, forkcnt);
1910#endif 2156#endif
1911 2157
2158#if EV_CLEANUP_ENABLE
2159 assert (cleanupmax >= cleanupcnt);
2160 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2161#endif
2162
1912#if EV_ASYNC_ENABLE 2163#if EV_ASYNC_ENABLE
1913 assert (asyncmax >= asynccnt); 2164 assert (asyncmax >= asynccnt);
1914 array_verify (EV_A_ (W *)asyncs, asynccnt); 2165 array_verify (EV_A_ (W *)asyncs, asynccnt);
1915#endif 2166#endif
1916 2167
2168#if EV_PREPARE_ENABLE
1917 assert (preparemax >= preparecnt); 2169 assert (preparemax >= preparecnt);
1918 array_verify (EV_A_ (W *)prepares, preparecnt); 2170 array_verify (EV_A_ (W *)prepares, preparecnt);
2171#endif
1919 2172
2173#if EV_CHECK_ENABLE
1920 assert (checkmax >= checkcnt); 2174 assert (checkmax >= checkcnt);
1921 array_verify (EV_A_ (W *)checks, checkcnt); 2175 array_verify (EV_A_ (W *)checks, checkcnt);
2176#endif
1922 2177
1923# if 0 2178# if 0
2179#if EV_CHILD_ENABLE
1924 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2180 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1925 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) 2181 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2182#endif
1926# endif 2183# endif
1927#endif 2184#endif
1928} 2185}
1929#endif 2186#endif
1930 2187
1931#if EV_MULTIPLICITY 2188#if EV_MULTIPLICITY
1932struct ev_loop * 2189struct ev_loop * ecb_cold
1933ev_default_loop_init (unsigned int flags)
1934#else 2190#else
1935int 2191int
2192#endif
1936ev_default_loop (unsigned int flags) 2193ev_default_loop (unsigned int flags)
1937#endif
1938{ 2194{
1939 if (!ev_default_loop_ptr) 2195 if (!ev_default_loop_ptr)
1940 { 2196 {
1941#if EV_MULTIPLICITY 2197#if EV_MULTIPLICITY
1942 EV_P = ev_default_loop_ptr = &default_loop_struct; 2198 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1946 2202
1947 loop_init (EV_A_ flags); 2203 loop_init (EV_A_ flags);
1948 2204
1949 if (ev_backend (EV_A)) 2205 if (ev_backend (EV_A))
1950 { 2206 {
1951#ifndef _WIN32 2207#if EV_CHILD_ENABLE
1952 ev_signal_init (&childev, childcb, SIGCHLD); 2208 ev_signal_init (&childev, childcb, SIGCHLD);
1953 ev_set_priority (&childev, EV_MAXPRI); 2209 ev_set_priority (&childev, EV_MAXPRI);
1954 ev_signal_start (EV_A_ &childev); 2210 ev_signal_start (EV_A_ &childev);
1955 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2211 ev_unref (EV_A); /* child watcher should not keep loop alive */
1956#endif 2212#endif
… …
1961 2217
1962 return ev_default_loop_ptr; 2218 return ev_default_loop_ptr;
1963} 2219}
1964 2220
1965void 2221void
1966ev_default_destroy (void) 2222ev_loop_fork (EV_P)
1967{ 2223{
1968#if EV_MULTIPLICITY
1969 EV_P = ev_default_loop_ptr;
1970#endif
1971
1972 ev_default_loop_ptr = 0;
1973
1974#ifndef _WIN32
1975 ev_ref (EV_A); /* child watcher */
1976 ev_signal_stop (EV_A_ &childev);
1977#endif
1978
1979 loop_destroy (EV_A);
1980}
1981
1982void
1983ev_default_fork (void)
1984{
1985#if EV_MULTIPLICITY
1986 EV_P = ev_default_loop_ptr;
1987#endif
1988
1989 postfork = 1; /* must be in line with ev_loop_fork */ 2224 postfork = 1; /* must be in line with ev_default_fork */
1990} 2225}
1991 2226
1992/*****************************************************************************/ 2227/*****************************************************************************/
1993 2228
1994void 2229void
… …
2016 2251
2017 for (pri = NUMPRI; pri--; ) 2252 for (pri = NUMPRI; pri--; )
2018 while (pendingcnt [pri]) 2253 while (pendingcnt [pri])
2019 { 2254 {
2020 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2255 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
2021
2022 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2023 /* ^ this is no longer true, as pending_w could be here */
2024 2256
2025 p->w->pending = 0; 2257 p->w->pending = 0;
2026 EV_CB_INVOKE (p->w, p->events); 2258 EV_CB_INVOKE (p->w, p->events);
2027 EV_FREQUENT_CHECK; 2259 EV_FREQUENT_CHECK;
2028 } 2260 }
… …
2085 EV_FREQUENT_CHECK; 2317 EV_FREQUENT_CHECK;
2086 feed_reverse (EV_A_ (W)w); 2318 feed_reverse (EV_A_ (W)w);
2087 } 2319 }
2088 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2320 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2089 2321
2090 feed_reverse_done (EV_A_ EV_TIMEOUT); 2322 feed_reverse_done (EV_A_ EV_TIMER);
2091 } 2323 }
2092} 2324}
2093 2325
2094#if EV_PERIODIC_ENABLE 2326#if EV_PERIODIC_ENABLE
2327
2328static void noinline
2329periodic_recalc (EV_P_ ev_periodic *w)
2330{
2331 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2332 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2333
2334 /* the above almost always errs on the low side */
2335 while (at <= ev_rt_now)
2336 {
2337 ev_tstamp nat = at + w->interval;
2338
2339 /* when resolution fails us, we use ev_rt_now */
2340 if (expect_false (nat == at))
2341 {
2342 at = ev_rt_now;
2343 break;
2344 }
2345
2346 at = nat;
2347 }
2348
2349 ev_at (w) = at;
2350}
2351
2095/* make periodics pending */ 2352/* make periodics pending */
2096inline_size void 2353inline_size void
2097periodics_reify (EV_P) 2354periodics_reify (EV_P)
2098{ 2355{
2099 EV_FREQUENT_CHECK; 2356 EV_FREQUENT_CHECK;
… …
2118 ANHE_at_cache (periodics [HEAP0]); 2375 ANHE_at_cache (periodics [HEAP0]);
2119 downheap (periodics, periodiccnt, HEAP0); 2376 downheap (periodics, periodiccnt, HEAP0);
2120 } 2377 }
2121 else if (w->interval) 2378 else if (w->interval)
2122 { 2379 {
2123 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2380 periodic_recalc (EV_A_ w);
2124 /* if next trigger time is not sufficiently in the future, put it there */
2125 /* this might happen because of floating point inexactness */
2126 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2127 {
2128 ev_at (w) += w->interval;
2129
2130 /* if interval is unreasonably low we might still have a time in the past */
2131 /* so correct this. this will make the periodic very inexact, but the user */
2132 /* has effectively asked to get triggered more often than possible */
2133 if (ev_at (w) < ev_rt_now)
2134 ev_at (w) = ev_rt_now;
2135 }
2136
2137 ANHE_at_cache (periodics [HEAP0]); 2381 ANHE_at_cache (periodics [HEAP0]);
2138 downheap (periodics, periodiccnt, HEAP0); 2382 downheap (periodics, periodiccnt, HEAP0);
2139 } 2383 }
2140 else 2384 else
2141 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2385 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2148 feed_reverse_done (EV_A_ EV_PERIODIC); 2392 feed_reverse_done (EV_A_ EV_PERIODIC);
2149 } 2393 }
2150} 2394}
2151 2395
2152/* simply recalculate all periodics */ 2396/* simply recalculate all periodics */
2153/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2397/* TODO: maybe ensure that at least one event happens when jumping forward? */
2154static void noinline 2398static void noinline ecb_cold
2155periodics_reschedule (EV_P) 2399periodics_reschedule (EV_P)
2156{ 2400{
2157 int i; 2401 int i;
2158 2402
2159 /* adjust periodics after time jump */ 2403 /* adjust periodics after time jump */
… …
2162 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2406 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2163 2407
2164 if (w->reschedule_cb) 2408 if (w->reschedule_cb)
2165 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2409 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2166 else if (w->interval) 2410 else if (w->interval)
2167 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2411 periodic_recalc (EV_A_ w);
2168 2412
2169 ANHE_at_cache (periodics [i]); 2413 ANHE_at_cache (periodics [i]);
2170 } 2414 }
2171 2415
2172 reheap (periodics, periodiccnt); 2416 reheap (periodics, periodiccnt);
2173} 2417}
2174#endif 2418#endif
2175 2419
2176/* adjust all timers by a given offset */ 2420/* adjust all timers by a given offset */
2177static void noinline 2421static void noinline ecb_cold
2178timers_reschedule (EV_P_ ev_tstamp adjust) 2422timers_reschedule (EV_P_ ev_tstamp adjust)
2179{ 2423{
2180 int i; 2424 int i;
2181 2425
2182 for (i = 0; i < timercnt; ++i) 2426 for (i = 0; i < timercnt; ++i)
… …
2219 * doesn't hurt either as we only do this on time-jumps or 2463 * doesn't hurt either as we only do this on time-jumps or
2220 * in the unlikely event of having been preempted here. 2464 * in the unlikely event of having been preempted here.
2221 */ 2465 */
2222 for (i = 4; --i; ) 2466 for (i = 4; --i; )
2223 { 2467 {
2468 ev_tstamp diff;
2224 rtmn_diff = ev_rt_now - mn_now; 2469 rtmn_diff = ev_rt_now - mn_now;
2225 2470
2471 diff = odiff - rtmn_diff;
2472
2226 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2473 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2227 return; /* all is well */ 2474 return; /* all is well */
2228 2475
2229 ev_rt_now = ev_time (); 2476 ev_rt_now = ev_time ();
2230 mn_now = get_clock (); 2477 mn_now = get_clock ();
2231 now_floor = mn_now; 2478 now_floor = mn_now;
… …
2254 mn_now = ev_rt_now; 2501 mn_now = ev_rt_now;
2255 } 2502 }
2256} 2503}
2257 2504
2258void 2505void
2259ev_loop (EV_P_ int flags) 2506ev_run (EV_P_ int flags)
2260{ 2507{
2261#if EV_MINIMAL < 2 2508#if EV_FEATURE_API
2262 ++loop_depth; 2509 ++loop_depth;
2263#endif 2510#endif
2264 2511
2265 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2512 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2266 2513
2267 loop_done = EVUNLOOP_CANCEL; 2514 loop_done = EVBREAK_CANCEL;
2268 2515
2269 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2516 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2270 2517
2271 do 2518 do
2272 { 2519 {
2273#if EV_VERIFY >= 2 2520#if EV_VERIFY >= 2
2274 ev_loop_verify (EV_A); 2521 ev_verify (EV_A);
2275#endif 2522#endif
2276 2523
2277#ifndef _WIN32 2524#ifndef _WIN32
2278 if (expect_false (curpid)) /* penalise the forking check even more */ 2525 if (expect_false (curpid)) /* penalise the forking check even more */
2279 if (expect_false (getpid () != curpid)) 2526 if (expect_false (getpid () != curpid))
… …
2291 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2538 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2292 EV_INVOKE_PENDING; 2539 EV_INVOKE_PENDING;
2293 } 2540 }
2294#endif 2541#endif
2295 2542
2543#if EV_PREPARE_ENABLE
2296 /* queue prepare watchers (and execute them) */ 2544 /* queue prepare watchers (and execute them) */
2297 if (expect_false (preparecnt)) 2545 if (expect_false (preparecnt))
2298 { 2546 {
2299 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2547 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2300 EV_INVOKE_PENDING; 2548 EV_INVOKE_PENDING;
2301 } 2549 }
2550#endif
2302 2551
2303 if (expect_false (loop_done)) 2552 if (expect_false (loop_done))
2304 break; 2553 break;
2305 2554
2306 /* we might have forked, so reify kernel state if necessary */ 2555 /* we might have forked, so reify kernel state if necessary */
… …
2313 /* calculate blocking time */ 2562 /* calculate blocking time */
2314 { 2563 {
2315 ev_tstamp waittime = 0.; 2564 ev_tstamp waittime = 0.;
2316 ev_tstamp sleeptime = 0.; 2565 ev_tstamp sleeptime = 0.;
2317 2566
2567 /* remember old timestamp for io_blocktime calculation */
2568 ev_tstamp prev_mn_now = mn_now;
2569
2570 /* update time to cancel out callback processing overhead */
2571 time_update (EV_A_ 1e100);
2572
2573 /* from now on, we want a pipe-wake-up */
2574 pipe_write_wanted = 1;
2575
2318 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2576 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2319 { 2577 {
2320 /* remember old timestamp for io_blocktime calculation */
2321 ev_tstamp prev_mn_now = mn_now;
2322
2323 /* update time to cancel out callback processing overhead */
2324 time_update (EV_A_ 1e100);
2325
2326 waittime = MAX_BLOCKTIME; 2578 waittime = MAX_BLOCKTIME;
2327 2579
2328 if (timercnt) 2580 if (timercnt)
2329 { 2581 {
2330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2582 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2331 if (waittime > to) waittime = to; 2583 if (waittime > to) waittime = to;
2332 } 2584 }
2333 2585
2334#if EV_PERIODIC_ENABLE 2586#if EV_PERIODIC_ENABLE
2335 if (periodiccnt) 2587 if (periodiccnt)
2336 { 2588 {
2337 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2589 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2338 if (waittime > to) waittime = to; 2590 if (waittime > to) waittime = to;
2339 } 2591 }
2340#endif 2592#endif
2341 2593
2342 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2594 /* don't let timeouts decrease the waittime below timeout_blocktime */
2343 if (expect_false (waittime < timeout_blocktime)) 2595 if (expect_false (waittime < timeout_blocktime))
2344 waittime = timeout_blocktime; 2596 waittime = timeout_blocktime;
2597
2598 /* at this point, we NEED to wait, so we have to ensure */
2599 /* to pass a minimum nonzero value to the backend */
2600 if (expect_false (waittime < backend_mintime))
2601 waittime = backend_mintime;
2345 2602
2346 /* extra check because io_blocktime is commonly 0 */ 2603 /* extra check because io_blocktime is commonly 0 */
2347 if (expect_false (io_blocktime)) 2604 if (expect_false (io_blocktime))
2348 { 2605 {
2349 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2606 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2350 2607
2351 if (sleeptime > waittime - backend_fudge) 2608 if (sleeptime > waittime - backend_mintime)
2352 sleeptime = waittime - backend_fudge; 2609 sleeptime = waittime - backend_mintime;
2353 2610
2354 if (expect_true (sleeptime > 0.)) 2611 if (expect_true (sleeptime > 0.))
2355 { 2612 {
2356 ev_sleep (sleeptime); 2613 ev_sleep (sleeptime);
2357 waittime -= sleeptime; 2614 waittime -= sleeptime;
2358 } 2615 }
2359 } 2616 }
2360 } 2617 }
2361 2618
2362#if EV_MINIMAL < 2 2619#if EV_FEATURE_API
2363 ++loop_count; 2620 ++loop_count;
2364#endif 2621#endif
2365 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2622 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2366 backend_poll (EV_A_ waittime); 2623 backend_poll (EV_A_ waittime);
2367 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2624 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2625
2626 pipe_write_wanted = 0;
2627
2628 if (pipe_write_skipped)
2629 {
2630 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2631 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2632 }
2633
2368 2634
2369 /* update ev_rt_now, do magic */ 2635 /* update ev_rt_now, do magic */
2370 time_update (EV_A_ waittime + sleeptime); 2636 time_update (EV_A_ waittime + sleeptime);
2371 } 2637 }
2372 2638
… …
2379#if EV_IDLE_ENABLE 2645#if EV_IDLE_ENABLE
2380 /* queue idle watchers unless other events are pending */ 2646 /* queue idle watchers unless other events are pending */
2381 idle_reify (EV_A); 2647 idle_reify (EV_A);
2382#endif 2648#endif
2383 2649
2650#if EV_CHECK_ENABLE
2384 /* queue check watchers, to be executed first */ 2651 /* queue check watchers, to be executed first */
2385 if (expect_false (checkcnt)) 2652 if (expect_false (checkcnt))
2386 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2653 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2654#endif
2387 2655
2388 EV_INVOKE_PENDING; 2656 EV_INVOKE_PENDING;
2389 } 2657 }
2390 while (expect_true ( 2658 while (expect_true (
2391 activecnt 2659 activecnt
2392 && !loop_done 2660 && !loop_done
2393 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2661 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2394 )); 2662 ));
2395 2663
2396 if (loop_done == EVUNLOOP_ONE) 2664 if (loop_done == EVBREAK_ONE)
2397 loop_done = EVUNLOOP_CANCEL; 2665 loop_done = EVBREAK_CANCEL;
2398 2666
2399#if EV_MINIMAL < 2 2667#if EV_FEATURE_API
2400 --loop_depth; 2668 --loop_depth;
2401#endif 2669#endif
2402} 2670}
2403 2671
2404void 2672void
2405ev_unloop (EV_P_ int how) 2673ev_break (EV_P_ int how)
2406{ 2674{
2407 loop_done = how; 2675 loop_done = how;
2408} 2676}
2409 2677
2410void 2678void
… …
2558 EV_FREQUENT_CHECK; 2826 EV_FREQUENT_CHECK;
2559 2827
2560 wlist_del (&anfds[w->fd].head, (WL)w); 2828 wlist_del (&anfds[w->fd].head, (WL)w);
2561 ev_stop (EV_A_ (W)w); 2829 ev_stop (EV_A_ (W)w);
2562 2830
2563 fd_change (EV_A_ w->fd, 1); 2831 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2564 2832
2565 EV_FREQUENT_CHECK; 2833 EV_FREQUENT_CHECK;
2566} 2834}
2567 2835
2568void noinline 2836void noinline
… …
2660 if (w->reschedule_cb) 2928 if (w->reschedule_cb)
2661 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2929 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2662 else if (w->interval) 2930 else if (w->interval)
2663 { 2931 {
2664 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2932 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2665 /* this formula differs from the one in periodic_reify because we do not always round up */ 2933 periodic_recalc (EV_A_ w);
2666 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2667 } 2934 }
2668 else 2935 else
2669 ev_at (w) = w->offset; 2936 ev_at (w) = w->offset;
2670 2937
2671 EV_FREQUENT_CHECK; 2938 EV_FREQUENT_CHECK;
… …
2720#endif 2987#endif
2721 2988
2722#ifndef SA_RESTART 2989#ifndef SA_RESTART
2723# define SA_RESTART 0 2990# define SA_RESTART 0
2724#endif 2991#endif
2992
2993#if EV_SIGNAL_ENABLE
2725 2994
2726void noinline 2995void noinline
2727ev_signal_start (EV_P_ ev_signal *w) 2996ev_signal_start (EV_P_ ev_signal *w)
2728{ 2997{
2729 if (expect_false (ev_is_active (w))) 2998 if (expect_false (ev_is_active (w)))
… …
2790 sa.sa_handler = ev_sighandler; 3059 sa.sa_handler = ev_sighandler;
2791 sigfillset (&sa.sa_mask); 3060 sigfillset (&sa.sa_mask);
2792 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3061 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2793 sigaction (w->signum, &sa, 0); 3062 sigaction (w->signum, &sa, 0);
2794 3063
3064 if (origflags & EVFLAG_NOSIGMASK)
3065 {
2795 sigemptyset (&sa.sa_mask); 3066 sigemptyset (&sa.sa_mask);
2796 sigaddset (&sa.sa_mask, w->signum); 3067 sigaddset (&sa.sa_mask, w->signum);
2797 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3068 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3069 }
2798#endif 3070#endif
2799 } 3071 }
2800 3072
2801 EV_FREQUENT_CHECK; 3073 EV_FREQUENT_CHECK;
2802} 3074}
… …
2836 } 3108 }
2837 3109
2838 EV_FREQUENT_CHECK; 3110 EV_FREQUENT_CHECK;
2839} 3111}
2840 3112
3113#endif
3114
3115#if EV_CHILD_ENABLE
3116
2841void 3117void
2842ev_child_start (EV_P_ ev_child *w) 3118ev_child_start (EV_P_ ev_child *w)
2843{ 3119{
2844#if EV_MULTIPLICITY 3120#if EV_MULTIPLICITY
2845 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3121 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2848 return; 3124 return;
2849 3125
2850 EV_FREQUENT_CHECK; 3126 EV_FREQUENT_CHECK;
2851 3127
2852 ev_start (EV_A_ (W)w, 1); 3128 ev_start (EV_A_ (W)w, 1);
2853 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3129 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2854 3130
2855 EV_FREQUENT_CHECK; 3131 EV_FREQUENT_CHECK;
2856} 3132}
2857 3133
2858void 3134void
… …
2862 if (expect_false (!ev_is_active (w))) 3138 if (expect_false (!ev_is_active (w)))
2863 return; 3139 return;
2864 3140
2865 EV_FREQUENT_CHECK; 3141 EV_FREQUENT_CHECK;
2866 3142
2867 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3143 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2868 ev_stop (EV_A_ (W)w); 3144 ev_stop (EV_A_ (W)w);
2869 3145
2870 EV_FREQUENT_CHECK; 3146 EV_FREQUENT_CHECK;
2871} 3147}
3148
3149#endif
2872 3150
2873#if EV_STAT_ENABLE 3151#if EV_STAT_ENABLE
2874 3152
2875# ifdef _WIN32 3153# ifdef _WIN32
2876# undef lstat 3154# undef lstat
… …
2937 if (!pend || pend == path) 3215 if (!pend || pend == path)
2938 break; 3216 break;
2939 3217
2940 *pend = 0; 3218 *pend = 0;
2941 w->wd = inotify_add_watch (fs_fd, path, mask); 3219 w->wd = inotify_add_watch (fs_fd, path, mask);
2942 } 3220 }
2943 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3221 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2944 } 3222 }
2945 } 3223 }
2946 3224
2947 if (w->wd >= 0) 3225 if (w->wd >= 0)
2948 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3226 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2949 3227
2950 /* now re-arm timer, if required */ 3228 /* now re-arm timer, if required */
2951 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3229 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2952 ev_timer_again (EV_A_ &w->timer); 3230 ev_timer_again (EV_A_ &w->timer);
2953 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3231 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2961 3239
2962 if (wd < 0) 3240 if (wd < 0)
2963 return; 3241 return;
2964 3242
2965 w->wd = -2; 3243 w->wd = -2;
2966 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3244 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2967 wlist_del (&fs_hash [slot].head, (WL)w); 3245 wlist_del (&fs_hash [slot].head, (WL)w);
2968 3246
2969 /* remove this watcher, if others are watching it, they will rearm */ 3247 /* remove this watcher, if others are watching it, they will rearm */
2970 inotify_rm_watch (fs_fd, wd); 3248 inotify_rm_watch (fs_fd, wd);
2971} 3249}
… …
2973static void noinline 3251static void noinline
2974infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3252infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2975{ 3253{
2976 if (slot < 0) 3254 if (slot < 0)
2977 /* overflow, need to check for all hash slots */ 3255 /* overflow, need to check for all hash slots */
2978 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3256 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2979 infy_wd (EV_A_ slot, wd, ev); 3257 infy_wd (EV_A_ slot, wd, ev);
2980 else 3258 else
2981 { 3259 {
2982 WL w_; 3260 WL w_;
2983 3261
2984 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3262 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2985 { 3263 {
2986 ev_stat *w = (ev_stat *)w_; 3264 ev_stat *w = (ev_stat *)w_;
2987 w_ = w_->next; /* lets us remove this watcher and all before it */ 3265 w_ = w_->next; /* lets us remove this watcher and all before it */
2988 3266
2989 if (w->wd == wd || wd == -1) 3267 if (w->wd == wd || wd == -1)
2990 { 3268 {
2991 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3269 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2992 { 3270 {
2993 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3271 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2994 w->wd = -1; 3272 w->wd = -1;
2995 infy_add (EV_A_ w); /* re-add, no matter what */ 3273 infy_add (EV_A_ w); /* re-add, no matter what */
2996 } 3274 }
2997 3275
2998 stat_timer_cb (EV_A_ &w->timer, 0); 3276 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3014 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3292 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3015 ofs += sizeof (struct inotify_event) + ev->len; 3293 ofs += sizeof (struct inotify_event) + ev->len;
3016 } 3294 }
3017} 3295}
3018 3296
3019inline_size unsigned int
3020ev_linux_version (void)
3021{
3022 struct utsname buf;
3023 unsigned int v;
3024 int i;
3025 char *p = buf.release;
3026
3027 if (uname (&buf))
3028 return 0;
3029
3030 for (i = 3+1; --i; )
3031 {
3032 unsigned int c = 0;
3033
3034 for (;;)
3035 {
3036 if (*p >= '0' && *p <= '9')
3037 c = c * 10 + *p++ - '0';
3038 else
3039 {
3040 p += *p == '.';
3041 break;
3042 }
3043 }
3044
3045 v = (v << 8) | c;
3046 }
3047
3048 return v;
3049}
3050
3051inline_size void 3297inline_size void ecb_cold
3052ev_check_2625 (EV_P) 3298ev_check_2625 (EV_P)
3053{ 3299{
3054 /* kernels < 2.6.25 are borked 3300 /* kernels < 2.6.25 are borked
3055 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3301 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3056 */ 3302 */
… …
3112 ev_io_set (&fs_w, fs_fd, EV_READ); 3358 ev_io_set (&fs_w, fs_fd, EV_READ);
3113 ev_io_start (EV_A_ &fs_w); 3359 ev_io_start (EV_A_ &fs_w);
3114 ev_unref (EV_A); 3360 ev_unref (EV_A);
3115 } 3361 }
3116 3362
3117 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3363 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3118 { 3364 {
3119 WL w_ = fs_hash [slot].head; 3365 WL w_ = fs_hash [slot].head;
3120 fs_hash [slot].head = 0; 3366 fs_hash [slot].head = 0;
3121 3367
3122 while (w_) 3368 while (w_)
… …
3297 3543
3298 EV_FREQUENT_CHECK; 3544 EV_FREQUENT_CHECK;
3299} 3545}
3300#endif 3546#endif
3301 3547
3548#if EV_PREPARE_ENABLE
3302void 3549void
3303ev_prepare_start (EV_P_ ev_prepare *w) 3550ev_prepare_start (EV_P_ ev_prepare *w)
3304{ 3551{
3305 if (expect_false (ev_is_active (w))) 3552 if (expect_false (ev_is_active (w)))
3306 return; 3553 return;
… …
3332 3579
3333 ev_stop (EV_A_ (W)w); 3580 ev_stop (EV_A_ (W)w);
3334 3581
3335 EV_FREQUENT_CHECK; 3582 EV_FREQUENT_CHECK;
3336} 3583}
3584#endif
3337 3585
3586#if EV_CHECK_ENABLE
3338void 3587void
3339ev_check_start (EV_P_ ev_check *w) 3588ev_check_start (EV_P_ ev_check *w)
3340{ 3589{
3341 if (expect_false (ev_is_active (w))) 3590 if (expect_false (ev_is_active (w)))
3342 return; 3591 return;
… …
3368 3617
3369 ev_stop (EV_A_ (W)w); 3618 ev_stop (EV_A_ (W)w);
3370 3619
3371 EV_FREQUENT_CHECK; 3620 EV_FREQUENT_CHECK;
3372} 3621}
3622#endif
3373 3623
3374#if EV_EMBED_ENABLE 3624#if EV_EMBED_ENABLE
3375void noinline 3625void noinline
3376ev_embed_sweep (EV_P_ ev_embed *w) 3626ev_embed_sweep (EV_P_ ev_embed *w)
3377{ 3627{
3378 ev_loop (w->other, EVLOOP_NONBLOCK); 3628 ev_run (w->other, EVRUN_NOWAIT);
3379} 3629}
3380 3630
3381static void 3631static void
3382embed_io_cb (EV_P_ ev_io *io, int revents) 3632embed_io_cb (EV_P_ ev_io *io, int revents)
3383{ 3633{
3384 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3634 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3385 3635
3386 if (ev_cb (w)) 3636 if (ev_cb (w))
3387 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3637 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3388 else 3638 else
3389 ev_loop (w->other, EVLOOP_NONBLOCK); 3639 ev_run (w->other, EVRUN_NOWAIT);
3390} 3640}
3391 3641
3392static void 3642static void
3393embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3643embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3394{ 3644{
… …
3398 EV_P = w->other; 3648 EV_P = w->other;
3399 3649
3400 while (fdchangecnt) 3650 while (fdchangecnt)
3401 { 3651 {
3402 fd_reify (EV_A); 3652 fd_reify (EV_A);
3403 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3653 ev_run (EV_A_ EVRUN_NOWAIT);
3404 } 3654 }
3405 } 3655 }
3406} 3656}
3407 3657
3408static void 3658static void
… …
3414 3664
3415 { 3665 {
3416 EV_P = w->other; 3666 EV_P = w->other;
3417 3667
3418 ev_loop_fork (EV_A); 3668 ev_loop_fork (EV_A);
3419 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3669 ev_run (EV_A_ EVRUN_NOWAIT);
3420 } 3670 }
3421 3671
3422 ev_embed_start (EV_A_ w); 3672 ev_embed_start (EV_A_ w);
3423} 3673}
3424 3674
… …
3516 3766
3517 EV_FREQUENT_CHECK; 3767 EV_FREQUENT_CHECK;
3518} 3768}
3519#endif 3769#endif
3520 3770
3771#if EV_CLEANUP_ENABLE
3772void
3773ev_cleanup_start (EV_P_ ev_cleanup *w)
3774{
3775 if (expect_false (ev_is_active (w)))
3776 return;
3777
3778 EV_FREQUENT_CHECK;
3779
3780 ev_start (EV_A_ (W)w, ++cleanupcnt);
3781 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3782 cleanups [cleanupcnt - 1] = w;
3783
3784 /* cleanup watchers should never keep a refcount on the loop */
3785 ev_unref (EV_A);
3786 EV_FREQUENT_CHECK;
3787}
3788
3789void
3790ev_cleanup_stop (EV_P_ ev_cleanup *w)
3791{
3792 clear_pending (EV_A_ (W)w);
3793 if (expect_false (!ev_is_active (w)))
3794 return;
3795
3796 EV_FREQUENT_CHECK;
3797 ev_ref (EV_A);
3798
3799 {
3800 int active = ev_active (w);
3801
3802 cleanups [active - 1] = cleanups [--cleanupcnt];
3803 ev_active (cleanups [active - 1]) = active;
3804 }
3805
3806 ev_stop (EV_A_ (W)w);
3807
3808 EV_FREQUENT_CHECK;
3809}
3810#endif
3811
3521#if EV_ASYNC_ENABLE 3812#if EV_ASYNC_ENABLE
3522void 3813void
3523ev_async_start (EV_P_ ev_async *w) 3814ev_async_start (EV_P_ ev_async *w)
3524{ 3815{
3525 if (expect_false (ev_is_active (w))) 3816 if (expect_false (ev_is_active (w)))
3526 return; 3817 return;
3818
3819 w->sent = 0;
3527 3820
3528 evpipe_init (EV_A); 3821 evpipe_init (EV_A);
3529 3822
3530 EV_FREQUENT_CHECK; 3823 EV_FREQUENT_CHECK;
3531 3824
… …
3609{ 3902{
3610 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3903 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3611 3904
3612 if (expect_false (!once)) 3905 if (expect_false (!once))
3613 { 3906 {
3614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3907 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3615 return; 3908 return;
3616 } 3909 }
3617 3910
3618 once->cb = cb; 3911 once->cb = cb;
3619 once->arg = arg; 3912 once->arg = arg;
… …
3634} 3927}
3635 3928
3636/*****************************************************************************/ 3929/*****************************************************************************/
3637 3930
3638#if EV_WALK_ENABLE 3931#if EV_WALK_ENABLE
3639void 3932void ecb_cold
3640ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3933ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3641{ 3934{
3642 int i, j; 3935 int i, j;
3643 ev_watcher_list *wl, *wn; 3936 ev_watcher_list *wl, *wn;
3644 3937
… …
3706 if (types & EV_ASYNC) 3999 if (types & EV_ASYNC)
3707 for (i = asynccnt; i--; ) 4000 for (i = asynccnt; i--; )
3708 cb (EV_A_ EV_ASYNC, asyncs [i]); 4001 cb (EV_A_ EV_ASYNC, asyncs [i]);
3709#endif 4002#endif
3710 4003
4004#if EV_PREPARE_ENABLE
3711 if (types & EV_PREPARE) 4005 if (types & EV_PREPARE)
3712 for (i = preparecnt; i--; ) 4006 for (i = preparecnt; i--; )
3713#if EV_EMBED_ENABLE 4007# if EV_EMBED_ENABLE
3714 if (ev_cb (prepares [i]) != embed_prepare_cb) 4008 if (ev_cb (prepares [i]) != embed_prepare_cb)
3715#endif 4009# endif
3716 cb (EV_A_ EV_PREPARE, prepares [i]); 4010 cb (EV_A_ EV_PREPARE, prepares [i]);
4011#endif
3717 4012
4013#if EV_CHECK_ENABLE
3718 if (types & EV_CHECK) 4014 if (types & EV_CHECK)
3719 for (i = checkcnt; i--; ) 4015 for (i = checkcnt; i--; )
3720 cb (EV_A_ EV_CHECK, checks [i]); 4016 cb (EV_A_ EV_CHECK, checks [i]);
4017#endif
3721 4018
4019#if EV_SIGNAL_ENABLE
3722 if (types & EV_SIGNAL) 4020 if (types & EV_SIGNAL)
3723 for (i = 0; i < EV_NSIG - 1; ++i) 4021 for (i = 0; i < EV_NSIG - 1; ++i)
3724 for (wl = signals [i].head; wl; ) 4022 for (wl = signals [i].head; wl; )
3725 { 4023 {
3726 wn = wl->next; 4024 wn = wl->next;
3727 cb (EV_A_ EV_SIGNAL, wl); 4025 cb (EV_A_ EV_SIGNAL, wl);
3728 wl = wn; 4026 wl = wn;
3729 } 4027 }
4028#endif
3730 4029
4030#if EV_CHILD_ENABLE
3731 if (types & EV_CHILD) 4031 if (types & EV_CHILD)
3732 for (i = EV_PID_HASHSIZE; i--; ) 4032 for (i = (EV_PID_HASHSIZE); i--; )
3733 for (wl = childs [i]; wl; ) 4033 for (wl = childs [i]; wl; )
3734 { 4034 {
3735 wn = wl->next; 4035 wn = wl->next;
3736 cb (EV_A_ EV_CHILD, wl); 4036 cb (EV_A_ EV_CHILD, wl);
3737 wl = wn; 4037 wl = wn;
3738 } 4038 }
4039#endif
3739/* EV_STAT 0x00001000 /* stat data changed */ 4040/* EV_STAT 0x00001000 /* stat data changed */
3740/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4041/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3741} 4042}
3742#endif 4043#endif
3743 4044
3744#if EV_MULTIPLICITY 4045#if EV_MULTIPLICITY
3745 #include "ev_wrap.h" 4046 #include "ev_wrap.h"
3746#endif 4047#endif
3747 4048
3748#ifdef __cplusplus 4049EV_CPP(})
3749}
3750#endif
3751 4050

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