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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 1.374 by root, Sat Feb 26 15:21:01 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) */
465
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
464 468
465#if __GNUC__ >= 4 469#if __GNUC__ >= 4
466# define expect(expr,value) __builtin_expect ((expr),(value)) 470# define expect(expr,value) __builtin_expect ((expr),(value))
467# define noinline __attribute__ ((noinline)) 471# define noinline __attribute__ ((noinline))
468#else 472#else
… …
475 479
476#define expect_false(expr) expect ((expr) != 0, 0) 480#define expect_false(expr) expect ((expr) != 0, 0)
477#define expect_true(expr) expect ((expr) != 0, 1) 481#define expect_true(expr) expect ((expr) != 0, 1)
478#define inline_size static inline 482#define inline_size static inline
479 483
480#if EV_MINIMAL 484#if EV_FEATURE_CODE
485# define inline_speed static inline
486#else
481# define inline_speed static noinline 487# define inline_speed static noinline
482#else
483# define inline_speed static inline
484#endif 488#endif
485 489
486#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
487 491
488#if EV_MINPRI == EV_MAXPRI 492#if EV_MINPRI == EV_MAXPRI
… …
501#define ev_active(w) ((W)(w))->active 505#define ev_active(w) ((W)(w))->active
502#define ev_at(w) ((WT)(w))->at 506#define ev_at(w) ((WT)(w))->at
503 507
504#if EV_USE_REALTIME 508#if EV_USE_REALTIME
505/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 509/* 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 */ 510/* giving it a reasonably high chance of working on typical architectures */
507static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 511static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
508#endif 512#endif
509 513
510#if EV_USE_MONOTONIC 514#if EV_USE_MONOTONIC
511static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 515static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
522#endif 526#endif
523 527
524#ifdef _WIN32 528#ifdef _WIN32
525# include "ev_win32.c" 529# include "ev_win32.c"
526#endif 530#endif
531
532/*****************************************************************************/
533
534/* define a suitable floor function (only used by periodics atm) */
535
536#if EV_USE_FLOOR
537# include <math.h>
538# define ev_floor(v) floor (v)
539#else
540
541#include <float.h>
542
543/* a floor() replacement function, should be independent of ev_tstamp type */
544static ev_tstamp noinline
545ev_floor (ev_tstamp v)
546{
547 /* the choice of shift factor is not terribly important */
548#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
549 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
550#else
551 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
552#endif
553
554 /* argument too large for an unsigned long? */
555 if (expect_false (v >= shift))
556 {
557 ev_tstamp f;
558
559 if (v == v - 1.)
560 return v; /* very large number */
561
562 f = shift * ev_floor (v * (1. / shift));
563 return f + ev_floor (v - f);
564 }
565
566 /* special treatment for negative args? */
567 if (expect_false (v < 0.))
568 {
569 ev_tstamp f = -ev_floor (-v);
570
571 return f - (f == v ? 0 : 1);
572 }
573
574 /* fits into an unsigned long */
575 return (unsigned long)v;
576}
577
578#endif
579
580/*****************************************************************************/
581
582#ifdef __linux
583# include <sys/utsname.h>
584#endif
585
586static unsigned int noinline
587ev_linux_version (void)
588{
589#ifdef __linux
590 unsigned int v = 0;
591 struct utsname buf;
592 int i;
593 char *p = buf.release;
594
595 if (uname (&buf))
596 return 0;
597
598 for (i = 3+1; --i; )
599 {
600 unsigned int c = 0;
601
602 for (;;)
603 {
604 if (*p >= '0' && *p <= '9')
605 c = c * 10 + *p++ - '0';
606 else
607 {
608 p += *p == '.';
609 break;
610 }
611 }
612
613 v = (v << 8) | c;
614 }
615
616 return v;
617#else
618 return 0;
619#endif
620}
527 621
528/*****************************************************************************/ 622/*****************************************************************************/
529 623
530#if EV_AVOID_STDIO 624#if EV_AVOID_STDIO
531static void noinline 625static void noinline
… …
552 if (syserr_cb) 646 if (syserr_cb)
553 syserr_cb (msg); 647 syserr_cb (msg);
554 else 648 else
555 { 649 {
556#if EV_AVOID_STDIO 650#if EV_AVOID_STDIO
557 const char *err = strerror (errno);
558
559 ev_printerr (msg); 651 ev_printerr (msg);
560 ev_printerr (": "); 652 ev_printerr (": ");
561 ev_printerr (err); 653 ev_printerr (strerror (errno));
562 ev_printerr ("\n"); 654 ev_printerr ("\n");
563#else 655#else
564 perror (msg); 656 perror (msg);
565#endif 657#endif
566 abort (); 658 abort ();
… …
568} 660}
569 661
570static void * 662static void *
571ev_realloc_emul (void *ptr, long size) 663ev_realloc_emul (void *ptr, long size)
572{ 664{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
573 /* some systems, notably openbsd and darwin, fail to properly 668 /* some systems, notably openbsd and darwin, fail to properly
574 * implement realloc (x, 0) (as required by both ansi c-98 and 669 * implement realloc (x, 0) (as required by both ansi c-89 and
575 * the single unix specification, so work around them here. 670 * the single unix specification, so work around them here.
576 */ 671 */
577 672
578 if (size) 673 if (size)
579 return realloc (ptr, size); 674 return realloc (ptr, size);
580 675
581 free (ptr); 676 free (ptr);
582 return 0; 677 return 0;
678#endif
583} 679}
584 680
585static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
586 682
587void 683void
… …
596 ptr = alloc (ptr, size); 692 ptr = alloc (ptr, size);
597 693
598 if (!ptr && size) 694 if (!ptr && size)
599 { 695 {
600#if EV_AVOID_STDIO 696#if EV_AVOID_STDIO
601 ev_printerr ("libev: memory allocation failed, aborting.\n"); 697 ev_printerr ("(libev) memory allocation failed, aborting.\n");
602#else 698#else
603 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 699 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
604#endif 700#endif
605 abort (); 701 abort ();
606 } 702 }
607 703
608 return ptr; 704 return ptr;
… …
625 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 721 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
626 unsigned char unused; 722 unsigned char unused;
627#if EV_USE_EPOLL 723#if EV_USE_EPOLL
628 unsigned int egen; /* generation counter to counter epoll bugs */ 724 unsigned int egen; /* generation counter to counter epoll bugs */
629#endif 725#endif
630#if EV_SELECT_IS_WINSOCKET 726#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
631 SOCKET handle; 727 SOCKET handle;
728#endif
729#if EV_USE_IOCP
730 OVERLAPPED or, ow;
632#endif 731#endif
633} ANFD; 732} ANFD;
634 733
635/* stores the pending event set for a given watcher */ 734/* stores the pending event set for a given watcher */
636typedef struct 735typedef struct
… …
691 790
692 static int ev_default_loop_ptr; 791 static int ev_default_loop_ptr;
693 792
694#endif 793#endif
695 794
696#if EV_MINIMAL < 2 795#if EV_FEATURE_API
697# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 796# 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) 797# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
699# define EV_INVOKE_PENDING invoke_cb (EV_A) 798# define EV_INVOKE_PENDING invoke_cb (EV_A)
700#else 799#else
701# define EV_RELEASE_CB (void)0 800# define EV_RELEASE_CB (void)0
702# define EV_ACQUIRE_CB (void)0 801# define EV_ACQUIRE_CB (void)0
703# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 802# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
704#endif 803#endif
705 804
706#define EVUNLOOP_RECURSE 0x80 805#define EVBREAK_RECURSE 0x80
707 806
708/*****************************************************************************/ 807/*****************************************************************************/
709 808
710#ifndef EV_HAVE_EV_TIME 809#ifndef EV_HAVE_EV_TIME
711ev_tstamp 810ev_tstamp
… …
755 if (delay > 0.) 854 if (delay > 0.)
756 { 855 {
757#if EV_USE_NANOSLEEP 856#if EV_USE_NANOSLEEP
758 struct timespec ts; 857 struct timespec ts;
759 858
760 ts.tv_sec = (time_t)delay; 859 EV_TS_SET (ts, delay);
761 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
762
763 nanosleep (&ts, 0); 860 nanosleep (&ts, 0);
764#elif defined(_WIN32) 861#elif defined(_WIN32)
765 Sleep ((unsigned long)(delay * 1e3)); 862 Sleep ((unsigned long)(delay * 1e3));
766#else 863#else
767 struct timeval tv; 864 struct timeval tv;
768 865
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 */ 866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
773 /* something not guaranteed by newer posix versions, but guaranteed */ 867 /* something not guaranteed by newer posix versions, but guaranteed */
774 /* by older ones */ 868 /* by older ones */
869 EV_TV_SET (tv, delay);
775 select (0, 0, 0, 0, &tv); 870 select (0, 0, 0, 0, &tv);
776#endif 871#endif
777 } 872 }
778} 873}
779 874
875inline_speed int
876ev_timeout_to_ms (ev_tstamp timeout)
877{
878 int ms = timeout * 1000. + .999999;
879
880 return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1;
881}
882
780/*****************************************************************************/ 883/*****************************************************************************/
781 884
782#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 885#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
783 886
784/* find a suitable new size for the given array, */ 887/* find a suitable new size for the given array, */
785/* hopefully by rounding to a ncie-to-malloc size */ 888/* hopefully by rounding to a nice-to-malloc size */
786inline_size int 889inline_size int
787array_nextsize (int elem, int cur, int cnt) 890array_nextsize (int elem, int cur, int cnt)
788{ 891{
789 int ncur = cur + 1; 892 int ncur = cur + 1;
790 893
… …
886} 989}
887 990
888/*****************************************************************************/ 991/*****************************************************************************/
889 992
890inline_speed void 993inline_speed void
891fd_event_nc (EV_P_ int fd, int revents) 994fd_event_nocheck (EV_P_ int fd, int revents)
892{ 995{
893 ANFD *anfd = anfds + fd; 996 ANFD *anfd = anfds + fd;
894 ev_io *w; 997 ev_io *w;
895 998
896 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 999 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
908fd_event (EV_P_ int fd, int revents) 1011fd_event (EV_P_ int fd, int revents)
909{ 1012{
910 ANFD *anfd = anfds + fd; 1013 ANFD *anfd = anfds + fd;
911 1014
912 if (expect_true (!anfd->reify)) 1015 if (expect_true (!anfd->reify))
913 fd_event_nc (EV_A_ fd, revents); 1016 fd_event_nocheck (EV_A_ fd, revents);
914} 1017}
915 1018
916void 1019void
917ev_feed_fd_event (EV_P_ int fd, int revents) 1020ev_feed_fd_event (EV_P_ int fd, int revents)
918{ 1021{
919 if (fd >= 0 && fd < anfdmax) 1022 if (fd >= 0 && fd < anfdmax)
920 fd_event_nc (EV_A_ fd, revents); 1023 fd_event_nocheck (EV_A_ fd, revents);
921} 1024}
922 1025
923/* make sure the external fd watch events are in-sync */ 1026/* make sure the external fd watch events are in-sync */
924/* with the kernel/libev internal state */ 1027/* with the kernel/libev internal state */
925inline_size void 1028inline_size void
926fd_reify (EV_P) 1029fd_reify (EV_P)
927{ 1030{
928 int i; 1031 int i;
929 1032
1033#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1034 for (i = 0; i < fdchangecnt; ++i)
1035 {
1036 int fd = fdchanges [i];
1037 ANFD *anfd = anfds + fd;
1038
1039 if (anfd->reify & EV__IOFDSET && anfd->head)
1040 {
1041 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1042
1043 if (handle != anfd->handle)
1044 {
1045 unsigned long arg;
1046
1047 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1048
1049 /* handle changed, but fd didn't - we need to do it in two steps */
1050 backend_modify (EV_A_ fd, anfd->events, 0);
1051 anfd->events = 0;
1052 anfd->handle = handle;
1053 }
1054 }
1055 }
1056#endif
1057
930 for (i = 0; i < fdchangecnt; ++i) 1058 for (i = 0; i < fdchangecnt; ++i)
931 { 1059 {
932 int fd = fdchanges [i]; 1060 int fd = fdchanges [i];
933 ANFD *anfd = anfds + fd; 1061 ANFD *anfd = anfds + fd;
934 ev_io *w; 1062 ev_io *w;
935 1063
936 unsigned char events = 0; 1064 unsigned char o_events = anfd->events;
1065 unsigned char o_reify = anfd->reify;
937 1066
938 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1067 anfd->reify = 0;
939 events |= (unsigned char)w->events;
940 1068
941#if EV_SELECT_IS_WINSOCKET 1069 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
942 if (events)
943 { 1070 {
944 unsigned long arg; 1071 anfd->events = 0;
945 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1072
946 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1073 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1074 anfd->events |= (unsigned char)w->events;
1075
1076 if (o_events != anfd->events)
1077 o_reify = EV__IOFDSET; /* actually |= */
947 } 1078 }
948#endif
949 1079
950 { 1080 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); 1081 backend_modify (EV_A_ fd, o_events, anfd->events);
959 }
960 } 1082 }
961 1083
962 fdchangecnt = 0; 1084 fdchangecnt = 0;
963} 1085}
964 1086
… …
988 ev_io_stop (EV_A_ w); 1110 ev_io_stop (EV_A_ w);
989 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1111 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
990 } 1112 }
991} 1113}
992 1114
993/* check whether the given fd is atcually valid, for error recovery */ 1115/* check whether the given fd is actually valid, for error recovery */
994inline_size int 1116inline_size int
995fd_valid (int fd) 1117fd_valid (int fd)
996{ 1118{
997#ifdef _WIN32 1119#ifdef _WIN32
998 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1120 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
… …
1040 anfds [fd].emask = 0; 1162 anfds [fd].emask = 0;
1041 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); 1163 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
1042 } 1164 }
1043} 1165}
1044 1166
1167/* used to prepare libev internal fd's */
1168/* this is not fork-safe */
1169inline_speed void
1170fd_intern (int fd)
1171{
1172#ifdef _WIN32
1173 unsigned long arg = 1;
1174 ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg);
1175#else
1176 fcntl (fd, F_SETFD, FD_CLOEXEC);
1177 fcntl (fd, F_SETFL, O_NONBLOCK);
1178#endif
1179}
1180
1045/*****************************************************************************/ 1181/*****************************************************************************/
1046 1182
1047/* 1183/*
1048 * the heap functions want a real array index. array index 0 uis guaranteed to not 1184 * 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 1185 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1050 * the branching factor of the d-tree. 1186 * the branching factor of the d-tree.
1051 */ 1187 */
1052 1188
1053/* 1189/*
… …
1201 1337
1202static ANSIG signals [EV_NSIG - 1]; 1338static ANSIG signals [EV_NSIG - 1];
1203 1339
1204/*****************************************************************************/ 1340/*****************************************************************************/
1205 1341
1206/* used to prepare libev internal fd's */ 1342#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 1343
1220static void noinline 1344static void noinline
1221evpipe_init (EV_P) 1345evpipe_init (EV_P)
1222{ 1346{
1223 if (!ev_is_active (&pipe_w)) 1347 if (!ev_is_active (&pipe_w))
1224 { 1348 {
1225#if EV_USE_EVENTFD 1349# if EV_USE_EVENTFD
1226 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 1350 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1227 if (evfd < 0 && errno == EINVAL) 1351 if (evfd < 0 && errno == EINVAL)
1228 evfd = eventfd (0, 0); 1352 evfd = eventfd (0, 0);
1229 1353
1230 if (evfd >= 0) 1354 if (evfd >= 0)
… …
1232 evpipe [0] = -1; 1356 evpipe [0] = -1;
1233 fd_intern (evfd); /* doing it twice doesn't hurt */ 1357 fd_intern (evfd); /* doing it twice doesn't hurt */
1234 ev_io_set (&pipe_w, evfd, EV_READ); 1358 ev_io_set (&pipe_w, evfd, EV_READ);
1235 } 1359 }
1236 else 1360 else
1237#endif 1361# endif
1238 { 1362 {
1239 while (pipe (evpipe)) 1363 while (pipe (evpipe))
1240 ev_syserr ("(libev) error creating signal/async pipe"); 1364 ev_syserr ("(libev) error creating signal/async pipe");
1241 1365
1242 fd_intern (evpipe [0]); 1366 fd_intern (evpipe [0]);
… …
1253evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1377evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1254{ 1378{
1255 if (!*flag) 1379 if (!*flag)
1256 { 1380 {
1257 int old_errno = errno; /* save errno because write might clobber it */ 1381 int old_errno = errno; /* save errno because write might clobber it */
1382 char dummy;
1258 1383
1259 *flag = 1; 1384 *flag = 1;
1260 1385
1261#if EV_USE_EVENTFD 1386#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1387 if (evfd >= 0)
… …
1264 uint64_t counter = 1; 1389 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1390 write (evfd, &counter, sizeof (uint64_t));
1266 } 1391 }
1267 else 1392 else
1268#endif 1393#endif
1394 /* win32 people keep sending patches that change this write() to send() */
1395 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1396 /* so when you think this write should be a send instead, please find out */
1397 /* where your send() is from - it's definitely not the microsoft send, and */
1398 /* tell me. thank you. */
1269 write (evpipe [1], &old_errno, 1); 1399 write (evpipe [1], &dummy, 1);
1270 1400
1271 errno = old_errno; 1401 errno = old_errno;
1272 } 1402 }
1273} 1403}
1274 1404
… …
1287 } 1417 }
1288 else 1418 else
1289#endif 1419#endif
1290 { 1420 {
1291 char dummy; 1421 char dummy;
1422 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1292 read (evpipe [0], &dummy, 1); 1423 read (evpipe [0], &dummy, 1);
1293 } 1424 }
1294 1425
1426#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1427 if (sig_pending)
1296 { 1428 {
1297 sig_pending = 0; 1429 sig_pending = 0;
1298 1430
1299 for (i = EV_NSIG - 1; i--; ) 1431 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1432 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1433 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1434 }
1435#endif
1303 1436
1304#if EV_ASYNC_ENABLE 1437#if EV_ASYNC_ENABLE
1305 if (async_pending) 1438 if (async_pending)
1306 { 1439 {
1307 async_pending = 0; 1440 async_pending = 0;
… …
1316#endif 1449#endif
1317} 1450}
1318 1451
1319/*****************************************************************************/ 1452/*****************************************************************************/
1320 1453
1454void
1455ev_feed_signal (int signum)
1456{
1457#if EV_MULTIPLICITY
1458 EV_P = signals [signum - 1].loop;
1459
1460 if (!EV_A)
1461 return;
1462#endif
1463
1464 signals [signum - 1].pending = 1;
1465 evpipe_write (EV_A_ &sig_pending);
1466}
1467
1321static void 1468static void
1322ev_sighandler (int signum) 1469ev_sighandler (int signum)
1323{ 1470{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 1471#ifdef _WIN32
1329 signal (signum, ev_sighandler); 1472 signal (signum, ev_sighandler);
1330#endif 1473#endif
1331 1474
1332 signals [signum - 1].pending = 1; 1475 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 1476}
1335 1477
1336void noinline 1478void noinline
1337ev_feed_signal_event (EV_P_ int signum) 1479ev_feed_signal_event (EV_P_ int signum)
1338{ 1480{
… …
1375 break; 1517 break;
1376 } 1518 }
1377} 1519}
1378#endif 1520#endif
1379 1521
1522#endif
1523
1380/*****************************************************************************/ 1524/*****************************************************************************/
1381 1525
1526#if EV_CHILD_ENABLE
1382static WL childs [EV_PID_HASHSIZE]; 1527static WL childs [EV_PID_HASHSIZE];
1383
1384#ifndef _WIN32
1385 1528
1386static ev_signal childev; 1529static ev_signal childev;
1387 1530
1388#ifndef WIFCONTINUED 1531#ifndef WIFCONTINUED
1389# define WIFCONTINUED(status) 0 1532# define WIFCONTINUED(status) 0
… …
1394child_reap (EV_P_ int chain, int pid, int status) 1537child_reap (EV_P_ int chain, int pid, int status)
1395{ 1538{
1396 ev_child *w; 1539 ev_child *w;
1397 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1540 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1398 1541
1399 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1542 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1400 { 1543 {
1401 if ((w->pid == pid || !w->pid) 1544 if ((w->pid == pid || !w->pid)
1402 && (!traced || (w->flags & 1))) 1545 && (!traced || (w->flags & 1)))
1403 { 1546 {
1404 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1547 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 */ 1572 /* 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 */ 1573 /* 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); 1574 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1432 1575
1433 child_reap (EV_A_ pid, pid, status); 1576 child_reap (EV_A_ pid, pid, status);
1434 if (EV_PID_HASHSIZE > 1) 1577 if ((EV_PID_HASHSIZE) > 1)
1435 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1578 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1436} 1579}
1437 1580
1438#endif 1581#endif
1439 1582
1440/*****************************************************************************/ 1583/*****************************************************************************/
1441 1584
1585#if EV_USE_IOCP
1586# include "ev_iocp.c"
1587#endif
1442#if EV_USE_PORT 1588#if EV_USE_PORT
1443# include "ev_port.c" 1589# include "ev_port.c"
1444#endif 1590#endif
1445#if EV_USE_KQUEUE 1591#if EV_USE_KQUEUE
1446# include "ev_kqueue.c" 1592# include "ev_kqueue.c"
… …
1506#ifdef __APPLE__ 1652#ifdef __APPLE__
1507 /* only select works correctly on that "unix-certified" platform */ 1653 /* only select works correctly on that "unix-certified" platform */
1508 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1654 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1509 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1655 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1510#endif 1656#endif
1657#ifdef __FreeBSD__
1658 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1659#endif
1511 1660
1512 return flags; 1661 return flags;
1513} 1662}
1514 1663
1515unsigned int 1664unsigned int
1516ev_embeddable_backends (void) 1665ev_embeddable_backends (void)
1517{ 1666{
1518 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1667 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1519 1668
1520 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1669 /* 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 */ 1670 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1522 flags &= ~EVBACKEND_EPOLL; 1671 flags &= ~EVBACKEND_EPOLL;
1523 1672
1524 return flags; 1673 return flags;
1525} 1674}
1526 1675
1527unsigned int 1676unsigned int
1528ev_backend (EV_P) 1677ev_backend (EV_P)
1529{ 1678{
1530 return backend; 1679 return backend;
1531} 1680}
1532 1681
1533#if EV_MINIMAL < 2 1682#if EV_FEATURE_API
1534unsigned int 1683unsigned int
1535ev_loop_count (EV_P) 1684ev_iteration (EV_P)
1536{ 1685{
1537 return loop_count; 1686 return loop_count;
1538} 1687}
1539 1688
1540unsigned int 1689unsigned int
1541ev_loop_depth (EV_P) 1690ev_depth (EV_P)
1542{ 1691{
1543 return loop_depth; 1692 return loop_depth;
1544} 1693}
1545 1694
1546void 1695void
… …
1583static void noinline 1732static void noinline
1584loop_init (EV_P_ unsigned int flags) 1733loop_init (EV_P_ unsigned int flags)
1585{ 1734{
1586 if (!backend) 1735 if (!backend)
1587 { 1736 {
1737 origflags = flags;
1738
1588#if EV_USE_REALTIME 1739#if EV_USE_REALTIME
1589 if (!have_realtime) 1740 if (!have_realtime)
1590 { 1741 {
1591 struct timespec ts; 1742 struct timespec ts;
1592 1743
… …
1618 1769
1619 ev_rt_now = ev_time (); 1770 ev_rt_now = ev_time ();
1620 mn_now = get_clock (); 1771 mn_now = get_clock ();
1621 now_floor = mn_now; 1772 now_floor = mn_now;
1622 rtmn_diff = ev_rt_now - mn_now; 1773 rtmn_diff = ev_rt_now - mn_now;
1623#if EV_MINIMAL < 2 1774#if EV_FEATURE_API
1624 invoke_cb = ev_invoke_pending; 1775 invoke_cb = ev_invoke_pending;
1625#endif 1776#endif
1626 1777
1627 io_blocktime = 0.; 1778 io_blocktime = 0.;
1628 timeout_blocktime = 0.; 1779 timeout_blocktime = 0.;
… …
1637#endif 1788#endif
1638#if EV_USE_SIGNALFD 1789#if EV_USE_SIGNALFD
1639 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 1790 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1640#endif 1791#endif
1641 1792
1642 if (!(flags & 0x0000ffffU)) 1793 if (!(flags & EVBACKEND_MASK))
1643 flags |= ev_recommended_backends (); 1794 flags |= ev_recommended_backends ();
1644 1795
1796#if EV_USE_IOCP
1797 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1798#endif
1645#if EV_USE_PORT 1799#if EV_USE_PORT
1646 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1800 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1647#endif 1801#endif
1648#if EV_USE_KQUEUE 1802#if EV_USE_KQUEUE
1649 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1803 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1658 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1812 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1659#endif 1813#endif
1660 1814
1661 ev_prepare_init (&pending_w, pendingcb); 1815 ev_prepare_init (&pending_w, pendingcb);
1662 1816
1817#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1663 ev_init (&pipe_w, pipecb); 1818 ev_init (&pipe_w, pipecb);
1664 ev_set_priority (&pipe_w, EV_MAXPRI); 1819 ev_set_priority (&pipe_w, EV_MAXPRI);
1820#endif
1665 } 1821 }
1666} 1822}
1667 1823
1668/* free up a loop structure */ 1824/* free up a loop structure */
1669static void noinline 1825void
1670loop_destroy (EV_P) 1826ev_loop_destroy (EV_P)
1671{ 1827{
1672 int i; 1828 int i;
1829
1830#if EV_MULTIPLICITY
1831 /* mimic free (0) */
1832 if (!EV_A)
1833 return;
1834#endif
1835
1836#if EV_CLEANUP_ENABLE
1837 /* queue cleanup watchers (and execute them) */
1838 if (expect_false (cleanupcnt))
1839 {
1840 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1841 EV_INVOKE_PENDING;
1842 }
1843#endif
1844
1845#if EV_CHILD_ENABLE
1846 if (ev_is_active (&childev))
1847 {
1848 ev_ref (EV_A); /* child watcher */
1849 ev_signal_stop (EV_A_ &childev);
1850 }
1851#endif
1673 1852
1674 if (ev_is_active (&pipe_w)) 1853 if (ev_is_active (&pipe_w))
1675 { 1854 {
1676 /*ev_ref (EV_A);*/ 1855 /*ev_ref (EV_A);*/
1677 /*ev_io_stop (EV_A_ &pipe_w);*/ 1856 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1699#endif 1878#endif
1700 1879
1701 if (backend_fd >= 0) 1880 if (backend_fd >= 0)
1702 close (backend_fd); 1881 close (backend_fd);
1703 1882
1883#if EV_USE_IOCP
1884 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1885#endif
1704#if EV_USE_PORT 1886#if EV_USE_PORT
1705 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1887 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1706#endif 1888#endif
1707#if EV_USE_KQUEUE 1889#if EV_USE_KQUEUE
1708 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1890 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1735 array_free (periodic, EMPTY); 1917 array_free (periodic, EMPTY);
1736#endif 1918#endif
1737#if EV_FORK_ENABLE 1919#if EV_FORK_ENABLE
1738 array_free (fork, EMPTY); 1920 array_free (fork, EMPTY);
1739#endif 1921#endif
1922#if EV_CLEANUP_ENABLE
1923 array_free (cleanup, EMPTY);
1924#endif
1740 array_free (prepare, EMPTY); 1925 array_free (prepare, EMPTY);
1741 array_free (check, EMPTY); 1926 array_free (check, EMPTY);
1742#if EV_ASYNC_ENABLE 1927#if EV_ASYNC_ENABLE
1743 array_free (async, EMPTY); 1928 array_free (async, EMPTY);
1744#endif 1929#endif
1745 1930
1746 backend = 0; 1931 backend = 0;
1932
1933#if EV_MULTIPLICITY
1934 if (ev_is_default_loop (EV_A))
1935#endif
1936 ev_default_loop_ptr = 0;
1937#if EV_MULTIPLICITY
1938 else
1939 ev_free (EV_A);
1940#endif
1747} 1941}
1748 1942
1749#if EV_USE_INOTIFY 1943#if EV_USE_INOTIFY
1750inline_size void infy_fork (EV_P); 1944inline_size void infy_fork (EV_P);
1751#endif 1945#endif
… …
1787 { 1981 {
1788 EV_WIN32_CLOSE_FD (evpipe [0]); 1982 EV_WIN32_CLOSE_FD (evpipe [0]);
1789 EV_WIN32_CLOSE_FD (evpipe [1]); 1983 EV_WIN32_CLOSE_FD (evpipe [1]);
1790 } 1984 }
1791 1985
1986#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1792 evpipe_init (EV_A); 1987 evpipe_init (EV_A);
1793 /* now iterate over everything, in case we missed something */ 1988 /* now iterate over everything, in case we missed something */
1794 pipecb (EV_A_ &pipe_w, EV_READ); 1989 pipecb (EV_A_ &pipe_w, EV_READ);
1990#endif
1795 } 1991 }
1796 1992
1797 postfork = 0; 1993 postfork = 0;
1798} 1994}
1799 1995
… …
1808 loop_init (EV_A_ flags); 2004 loop_init (EV_A_ flags);
1809 2005
1810 if (ev_backend (EV_A)) 2006 if (ev_backend (EV_A))
1811 return EV_A; 2007 return EV_A;
1812 2008
2009 ev_free (EV_A);
1813 return 0; 2010 return 0;
1814} 2011}
1815 2012
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 */ 2013#endif /* multiplicity */
1829 2014
1830#if EV_VERIFY 2015#if EV_VERIFY
1831static void noinline 2016static void noinline
1832verify_watcher (EV_P_ W w) 2017verify_watcher (EV_P_ W w)
… …
1861 verify_watcher (EV_A_ ws [cnt]); 2046 verify_watcher (EV_A_ ws [cnt]);
1862 } 2047 }
1863} 2048}
1864#endif 2049#endif
1865 2050
1866#if EV_MINIMAL < 2 2051#if EV_FEATURE_API
1867void 2052void
1868ev_loop_verify (EV_P) 2053ev_verify (EV_P)
1869{ 2054{
1870#if EV_VERIFY 2055#if EV_VERIFY
1871 int i; 2056 int i;
1872 WL w; 2057 WL w;
1873 2058
… …
1907#if EV_FORK_ENABLE 2092#if EV_FORK_ENABLE
1908 assert (forkmax >= forkcnt); 2093 assert (forkmax >= forkcnt);
1909 array_verify (EV_A_ (W *)forks, forkcnt); 2094 array_verify (EV_A_ (W *)forks, forkcnt);
1910#endif 2095#endif
1911 2096
2097#if EV_CLEANUP_ENABLE
2098 assert (cleanupmax >= cleanupcnt);
2099 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2100#endif
2101
1912#if EV_ASYNC_ENABLE 2102#if EV_ASYNC_ENABLE
1913 assert (asyncmax >= asynccnt); 2103 assert (asyncmax >= asynccnt);
1914 array_verify (EV_A_ (W *)asyncs, asynccnt); 2104 array_verify (EV_A_ (W *)asyncs, asynccnt);
1915#endif 2105#endif
1916 2106
2107#if EV_PREPARE_ENABLE
1917 assert (preparemax >= preparecnt); 2108 assert (preparemax >= preparecnt);
1918 array_verify (EV_A_ (W *)prepares, preparecnt); 2109 array_verify (EV_A_ (W *)prepares, preparecnt);
2110#endif
1919 2111
2112#if EV_CHECK_ENABLE
1920 assert (checkmax >= checkcnt); 2113 assert (checkmax >= checkcnt);
1921 array_verify (EV_A_ (W *)checks, checkcnt); 2114 array_verify (EV_A_ (W *)checks, checkcnt);
2115#endif
1922 2116
1923# if 0 2117# if 0
2118#if EV_CHILD_ENABLE
1924 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2119 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) 2120 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2121#endif
1926# endif 2122# endif
1927#endif 2123#endif
1928} 2124}
1929#endif 2125#endif
1930 2126
1931#if EV_MULTIPLICITY 2127#if EV_MULTIPLICITY
1932struct ev_loop * 2128struct ev_loop *
1933ev_default_loop_init (unsigned int flags)
1934#else 2129#else
1935int 2130int
2131#endif
1936ev_default_loop (unsigned int flags) 2132ev_default_loop (unsigned int flags)
1937#endif
1938{ 2133{
1939 if (!ev_default_loop_ptr) 2134 if (!ev_default_loop_ptr)
1940 { 2135 {
1941#if EV_MULTIPLICITY 2136#if EV_MULTIPLICITY
1942 EV_P = ev_default_loop_ptr = &default_loop_struct; 2137 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1946 2141
1947 loop_init (EV_A_ flags); 2142 loop_init (EV_A_ flags);
1948 2143
1949 if (ev_backend (EV_A)) 2144 if (ev_backend (EV_A))
1950 { 2145 {
1951#ifndef _WIN32 2146#if EV_CHILD_ENABLE
1952 ev_signal_init (&childev, childcb, SIGCHLD); 2147 ev_signal_init (&childev, childcb, SIGCHLD);
1953 ev_set_priority (&childev, EV_MAXPRI); 2148 ev_set_priority (&childev, EV_MAXPRI);
1954 ev_signal_start (EV_A_ &childev); 2149 ev_signal_start (EV_A_ &childev);
1955 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2150 ev_unref (EV_A); /* child watcher should not keep loop alive */
1956#endif 2151#endif
… …
1961 2156
1962 return ev_default_loop_ptr; 2157 return ev_default_loop_ptr;
1963} 2158}
1964 2159
1965void 2160void
1966ev_default_destroy (void) 2161ev_loop_fork (EV_P)
1967{ 2162{
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 */ 2163 postfork = 1; /* must be in line with ev_default_fork */
1990} 2164}
1991 2165
1992/*****************************************************************************/ 2166/*****************************************************************************/
1993 2167
1994void 2168void
… …
2016 2190
2017 for (pri = NUMPRI; pri--; ) 2191 for (pri = NUMPRI; pri--; )
2018 while (pendingcnt [pri]) 2192 while (pendingcnt [pri])
2019 { 2193 {
2020 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2194 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 2195
2025 p->w->pending = 0; 2196 p->w->pending = 0;
2026 EV_CB_INVOKE (p->w, p->events); 2197 EV_CB_INVOKE (p->w, p->events);
2027 EV_FREQUENT_CHECK; 2198 EV_FREQUENT_CHECK;
2028 } 2199 }
… …
2085 EV_FREQUENT_CHECK; 2256 EV_FREQUENT_CHECK;
2086 feed_reverse (EV_A_ (W)w); 2257 feed_reverse (EV_A_ (W)w);
2087 } 2258 }
2088 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2259 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2089 2260
2090 feed_reverse_done (EV_A_ EV_TIMEOUT); 2261 feed_reverse_done (EV_A_ EV_TIMER);
2091 } 2262 }
2092} 2263}
2093 2264
2094#if EV_PERIODIC_ENABLE 2265#if EV_PERIODIC_ENABLE
2266
2267static void noinline
2268periodic_recalc (EV_P_ ev_periodic *w)
2269{
2270 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2271 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2272
2273 /* the above almost always errs on the low side */
2274 while (at <= ev_rt_now)
2275 {
2276 ev_tstamp nat = at + w->interval;
2277
2278 /* when resolution fails us, we use ev_rt_now */
2279 if (expect_false (nat == at))
2280 {
2281 at = ev_rt_now;
2282 break;
2283 }
2284
2285 at = nat;
2286 }
2287
2288 ev_at (w) = at;
2289}
2290
2095/* make periodics pending */ 2291/* make periodics pending */
2096inline_size void 2292inline_size void
2097periodics_reify (EV_P) 2293periodics_reify (EV_P)
2098{ 2294{
2099 EV_FREQUENT_CHECK; 2295 EV_FREQUENT_CHECK;
… …
2118 ANHE_at_cache (periodics [HEAP0]); 2314 ANHE_at_cache (periodics [HEAP0]);
2119 downheap (periodics, periodiccnt, HEAP0); 2315 downheap (periodics, periodiccnt, HEAP0);
2120 } 2316 }
2121 else if (w->interval) 2317 else if (w->interval)
2122 { 2318 {
2123 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2319 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]); 2320 ANHE_at_cache (periodics [HEAP0]);
2138 downheap (periodics, periodiccnt, HEAP0); 2321 downheap (periodics, periodiccnt, HEAP0);
2139 } 2322 }
2140 else 2323 else
2141 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2324 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2148 feed_reverse_done (EV_A_ EV_PERIODIC); 2331 feed_reverse_done (EV_A_ EV_PERIODIC);
2149 } 2332 }
2150} 2333}
2151 2334
2152/* simply recalculate all periodics */ 2335/* simply recalculate all periodics */
2153/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2336/* TODO: maybe ensure that at least one event happens when jumping forward? */
2154static void noinline 2337static void noinline
2155periodics_reschedule (EV_P) 2338periodics_reschedule (EV_P)
2156{ 2339{
2157 int i; 2340 int i;
2158 2341
… …
2162 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2345 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2163 2346
2164 if (w->reschedule_cb) 2347 if (w->reschedule_cb)
2165 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2348 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2166 else if (w->interval) 2349 else if (w->interval)
2167 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2350 periodic_recalc (EV_A_ w);
2168 2351
2169 ANHE_at_cache (periodics [i]); 2352 ANHE_at_cache (periodics [i]);
2170 } 2353 }
2171 2354
2172 reheap (periodics, periodiccnt); 2355 reheap (periodics, periodiccnt);
… …
2219 * doesn't hurt either as we only do this on time-jumps or 2402 * doesn't hurt either as we only do this on time-jumps or
2220 * in the unlikely event of having been preempted here. 2403 * in the unlikely event of having been preempted here.
2221 */ 2404 */
2222 for (i = 4; --i; ) 2405 for (i = 4; --i; )
2223 { 2406 {
2407 ev_tstamp diff;
2224 rtmn_diff = ev_rt_now - mn_now; 2408 rtmn_diff = ev_rt_now - mn_now;
2225 2409
2410 diff = odiff - rtmn_diff;
2411
2226 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2412 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2227 return; /* all is well */ 2413 return; /* all is well */
2228 2414
2229 ev_rt_now = ev_time (); 2415 ev_rt_now = ev_time ();
2230 mn_now = get_clock (); 2416 mn_now = get_clock ();
2231 now_floor = mn_now; 2417 now_floor = mn_now;
… …
2254 mn_now = ev_rt_now; 2440 mn_now = ev_rt_now;
2255 } 2441 }
2256} 2442}
2257 2443
2258void 2444void
2259ev_loop (EV_P_ int flags) 2445ev_run (EV_P_ int flags)
2260{ 2446{
2261#if EV_MINIMAL < 2 2447#if EV_FEATURE_API
2262 ++loop_depth; 2448 ++loop_depth;
2263#endif 2449#endif
2264 2450
2265 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2451 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2266 2452
2267 loop_done = EVUNLOOP_CANCEL; 2453 loop_done = EVBREAK_CANCEL;
2268 2454
2269 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2455 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2270 2456
2271 do 2457 do
2272 { 2458 {
2273#if EV_VERIFY >= 2 2459#if EV_VERIFY >= 2
2274 ev_loop_verify (EV_A); 2460 ev_verify (EV_A);
2275#endif 2461#endif
2276 2462
2277#ifndef _WIN32 2463#ifndef _WIN32
2278 if (expect_false (curpid)) /* penalise the forking check even more */ 2464 if (expect_false (curpid)) /* penalise the forking check even more */
2279 if (expect_false (getpid () != curpid)) 2465 if (expect_false (getpid () != curpid))
… …
2291 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2477 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2292 EV_INVOKE_PENDING; 2478 EV_INVOKE_PENDING;
2293 } 2479 }
2294#endif 2480#endif
2295 2481
2482#if EV_PREPARE_ENABLE
2296 /* queue prepare watchers (and execute them) */ 2483 /* queue prepare watchers (and execute them) */
2297 if (expect_false (preparecnt)) 2484 if (expect_false (preparecnt))
2298 { 2485 {
2299 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2486 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2300 EV_INVOKE_PENDING; 2487 EV_INVOKE_PENDING;
2301 } 2488 }
2489#endif
2302 2490
2303 if (expect_false (loop_done)) 2491 if (expect_false (loop_done))
2304 break; 2492 break;
2305 2493
2306 /* we might have forked, so reify kernel state if necessary */ 2494 /* we might have forked, so reify kernel state if necessary */
… …
2313 /* calculate blocking time */ 2501 /* calculate blocking time */
2314 { 2502 {
2315 ev_tstamp waittime = 0.; 2503 ev_tstamp waittime = 0.;
2316 ev_tstamp sleeptime = 0.; 2504 ev_tstamp sleeptime = 0.;
2317 2505
2506 /* remember old timestamp for io_blocktime calculation */
2507 ev_tstamp prev_mn_now = mn_now;
2508
2509 /* update time to cancel out callback processing overhead */
2510 time_update (EV_A_ 1e100);
2511
2318 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2512 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt)))
2319 { 2513 {
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; 2514 waittime = MAX_BLOCKTIME;
2327 2515
2328 if (timercnt) 2516 if (timercnt)
2329 { 2517 {
2330 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2518 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge;
… …
2357 waittime -= sleeptime; 2545 waittime -= sleeptime;
2358 } 2546 }
2359 } 2547 }
2360 } 2548 }
2361 2549
2362#if EV_MINIMAL < 2 2550#if EV_FEATURE_API
2363 ++loop_count; 2551 ++loop_count;
2364#endif 2552#endif
2365 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 2553 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2366 backend_poll (EV_A_ waittime); 2554 backend_poll (EV_A_ waittime);
2367 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 2555 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2368 2556
2369 /* update ev_rt_now, do magic */ 2557 /* update ev_rt_now, do magic */
2370 time_update (EV_A_ waittime + sleeptime); 2558 time_update (EV_A_ waittime + sleeptime);
2371 } 2559 }
2372 2560
… …
2379#if EV_IDLE_ENABLE 2567#if EV_IDLE_ENABLE
2380 /* queue idle watchers unless other events are pending */ 2568 /* queue idle watchers unless other events are pending */
2381 idle_reify (EV_A); 2569 idle_reify (EV_A);
2382#endif 2570#endif
2383 2571
2572#if EV_CHECK_ENABLE
2384 /* queue check watchers, to be executed first */ 2573 /* queue check watchers, to be executed first */
2385 if (expect_false (checkcnt)) 2574 if (expect_false (checkcnt))
2386 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2575 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2576#endif
2387 2577
2388 EV_INVOKE_PENDING; 2578 EV_INVOKE_PENDING;
2389 } 2579 }
2390 while (expect_true ( 2580 while (expect_true (
2391 activecnt 2581 activecnt
2392 && !loop_done 2582 && !loop_done
2393 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2583 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2394 )); 2584 ));
2395 2585
2396 if (loop_done == EVUNLOOP_ONE) 2586 if (loop_done == EVBREAK_ONE)
2397 loop_done = EVUNLOOP_CANCEL; 2587 loop_done = EVBREAK_CANCEL;
2398 2588
2399#if EV_MINIMAL < 2 2589#if EV_FEATURE_API
2400 --loop_depth; 2590 --loop_depth;
2401#endif 2591#endif
2402} 2592}
2403 2593
2404void 2594void
2405ev_unloop (EV_P_ int how) 2595ev_break (EV_P_ int how)
2406{ 2596{
2407 loop_done = how; 2597 loop_done = how;
2408} 2598}
2409 2599
2410void 2600void
… …
2558 EV_FREQUENT_CHECK; 2748 EV_FREQUENT_CHECK;
2559 2749
2560 wlist_del (&anfds[w->fd].head, (WL)w); 2750 wlist_del (&anfds[w->fd].head, (WL)w);
2561 ev_stop (EV_A_ (W)w); 2751 ev_stop (EV_A_ (W)w);
2562 2752
2563 fd_change (EV_A_ w->fd, 1); 2753 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2564 2754
2565 EV_FREQUENT_CHECK; 2755 EV_FREQUENT_CHECK;
2566} 2756}
2567 2757
2568void noinline 2758void noinline
… …
2660 if (w->reschedule_cb) 2850 if (w->reschedule_cb)
2661 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2851 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2662 else if (w->interval) 2852 else if (w->interval)
2663 { 2853 {
2664 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2854 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 */ 2855 periodic_recalc (EV_A_ w);
2666 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2667 } 2856 }
2668 else 2857 else
2669 ev_at (w) = w->offset; 2858 ev_at (w) = w->offset;
2670 2859
2671 EV_FREQUENT_CHECK; 2860 EV_FREQUENT_CHECK;
… …
2720#endif 2909#endif
2721 2910
2722#ifndef SA_RESTART 2911#ifndef SA_RESTART
2723# define SA_RESTART 0 2912# define SA_RESTART 0
2724#endif 2913#endif
2914
2915#if EV_SIGNAL_ENABLE
2725 2916
2726void noinline 2917void noinline
2727ev_signal_start (EV_P_ ev_signal *w) 2918ev_signal_start (EV_P_ ev_signal *w)
2728{ 2919{
2729 if (expect_false (ev_is_active (w))) 2920 if (expect_false (ev_is_active (w)))
… …
2790 sa.sa_handler = ev_sighandler; 2981 sa.sa_handler = ev_sighandler;
2791 sigfillset (&sa.sa_mask); 2982 sigfillset (&sa.sa_mask);
2792 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 2983 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2793 sigaction (w->signum, &sa, 0); 2984 sigaction (w->signum, &sa, 0);
2794 2985
2986 if (origflags & EVFLAG_NOSIGMASK)
2987 {
2795 sigemptyset (&sa.sa_mask); 2988 sigemptyset (&sa.sa_mask);
2796 sigaddset (&sa.sa_mask, w->signum); 2989 sigaddset (&sa.sa_mask, w->signum);
2797 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 2990 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
2991 }
2798#endif 2992#endif
2799 } 2993 }
2800 2994
2801 EV_FREQUENT_CHECK; 2995 EV_FREQUENT_CHECK;
2802} 2996}
… …
2836 } 3030 }
2837 3031
2838 EV_FREQUENT_CHECK; 3032 EV_FREQUENT_CHECK;
2839} 3033}
2840 3034
3035#endif
3036
3037#if EV_CHILD_ENABLE
3038
2841void 3039void
2842ev_child_start (EV_P_ ev_child *w) 3040ev_child_start (EV_P_ ev_child *w)
2843{ 3041{
2844#if EV_MULTIPLICITY 3042#if EV_MULTIPLICITY
2845 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3043 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
… …
2848 return; 3046 return;
2849 3047
2850 EV_FREQUENT_CHECK; 3048 EV_FREQUENT_CHECK;
2851 3049
2852 ev_start (EV_A_ (W)w, 1); 3050 ev_start (EV_A_ (W)w, 1);
2853 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3051 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2854 3052
2855 EV_FREQUENT_CHECK; 3053 EV_FREQUENT_CHECK;
2856} 3054}
2857 3055
2858void 3056void
… …
2862 if (expect_false (!ev_is_active (w))) 3060 if (expect_false (!ev_is_active (w)))
2863 return; 3061 return;
2864 3062
2865 EV_FREQUENT_CHECK; 3063 EV_FREQUENT_CHECK;
2866 3064
2867 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3065 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2868 ev_stop (EV_A_ (W)w); 3066 ev_stop (EV_A_ (W)w);
2869 3067
2870 EV_FREQUENT_CHECK; 3068 EV_FREQUENT_CHECK;
2871} 3069}
3070
3071#endif
2872 3072
2873#if EV_STAT_ENABLE 3073#if EV_STAT_ENABLE
2874 3074
2875# ifdef _WIN32 3075# ifdef _WIN32
2876# undef lstat 3076# undef lstat
… …
2937 if (!pend || pend == path) 3137 if (!pend || pend == path)
2938 break; 3138 break;
2939 3139
2940 *pend = 0; 3140 *pend = 0;
2941 w->wd = inotify_add_watch (fs_fd, path, mask); 3141 w->wd = inotify_add_watch (fs_fd, path, mask);
2942 } 3142 }
2943 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3143 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2944 } 3144 }
2945 } 3145 }
2946 3146
2947 if (w->wd >= 0) 3147 if (w->wd >= 0)
2948 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3148 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2949 3149
2950 /* now re-arm timer, if required */ 3150 /* now re-arm timer, if required */
2951 if (ev_is_active (&w->timer)) ev_ref (EV_A); 3151 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2952 ev_timer_again (EV_A_ &w->timer); 3152 ev_timer_again (EV_A_ &w->timer);
2953 if (ev_is_active (&w->timer)) ev_unref (EV_A); 3153 if (ev_is_active (&w->timer)) ev_unref (EV_A);
… …
2961 3161
2962 if (wd < 0) 3162 if (wd < 0)
2963 return; 3163 return;
2964 3164
2965 w->wd = -2; 3165 w->wd = -2;
2966 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3166 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2967 wlist_del (&fs_hash [slot].head, (WL)w); 3167 wlist_del (&fs_hash [slot].head, (WL)w);
2968 3168
2969 /* remove this watcher, if others are watching it, they will rearm */ 3169 /* remove this watcher, if others are watching it, they will rearm */
2970 inotify_rm_watch (fs_fd, wd); 3170 inotify_rm_watch (fs_fd, wd);
2971} 3171}
… …
2973static void noinline 3173static void noinline
2974infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3174infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2975{ 3175{
2976 if (slot < 0) 3176 if (slot < 0)
2977 /* overflow, need to check for all hash slots */ 3177 /* overflow, need to check for all hash slots */
2978 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3178 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2979 infy_wd (EV_A_ slot, wd, ev); 3179 infy_wd (EV_A_ slot, wd, ev);
2980 else 3180 else
2981 { 3181 {
2982 WL w_; 3182 WL w_;
2983 3183
2984 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3184 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2985 { 3185 {
2986 ev_stat *w = (ev_stat *)w_; 3186 ev_stat *w = (ev_stat *)w_;
2987 w_ = w_->next; /* lets us remove this watcher and all before it */ 3187 w_ = w_->next; /* lets us remove this watcher and all before it */
2988 3188
2989 if (w->wd == wd || wd == -1) 3189 if (w->wd == wd || wd == -1)
2990 { 3190 {
2991 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3191 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2992 { 3192 {
2993 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3193 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2994 w->wd = -1; 3194 w->wd = -1;
2995 infy_add (EV_A_ w); /* re-add, no matter what */ 3195 infy_add (EV_A_ w); /* re-add, no matter what */
2996 } 3196 }
2997 3197
2998 stat_timer_cb (EV_A_ &w->timer, 0); 3198 stat_timer_cb (EV_A_ &w->timer, 0);
… …
3012 { 3212 {
3013 struct inotify_event *ev = (struct inotify_event *)(buf + ofs); 3213 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
3014 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3214 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3015 ofs += sizeof (struct inotify_event) + ev->len; 3215 ofs += sizeof (struct inotify_event) + ev->len;
3016 } 3216 }
3017}
3018
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} 3217}
3050 3218
3051inline_size void 3219inline_size void
3052ev_check_2625 (EV_P) 3220ev_check_2625 (EV_P)
3053{ 3221{
… …
3112 ev_io_set (&fs_w, fs_fd, EV_READ); 3280 ev_io_set (&fs_w, fs_fd, EV_READ);
3113 ev_io_start (EV_A_ &fs_w); 3281 ev_io_start (EV_A_ &fs_w);
3114 ev_unref (EV_A); 3282 ev_unref (EV_A);
3115 } 3283 }
3116 3284
3117 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3285 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
3118 { 3286 {
3119 WL w_ = fs_hash [slot].head; 3287 WL w_ = fs_hash [slot].head;
3120 fs_hash [slot].head = 0; 3288 fs_hash [slot].head = 0;
3121 3289
3122 while (w_) 3290 while (w_)
… …
3297 3465
3298 EV_FREQUENT_CHECK; 3466 EV_FREQUENT_CHECK;
3299} 3467}
3300#endif 3468#endif
3301 3469
3470#if EV_PREPARE_ENABLE
3302void 3471void
3303ev_prepare_start (EV_P_ ev_prepare *w) 3472ev_prepare_start (EV_P_ ev_prepare *w)
3304{ 3473{
3305 if (expect_false (ev_is_active (w))) 3474 if (expect_false (ev_is_active (w)))
3306 return; 3475 return;
… …
3332 3501
3333 ev_stop (EV_A_ (W)w); 3502 ev_stop (EV_A_ (W)w);
3334 3503
3335 EV_FREQUENT_CHECK; 3504 EV_FREQUENT_CHECK;
3336} 3505}
3506#endif
3337 3507
3508#if EV_CHECK_ENABLE
3338void 3509void
3339ev_check_start (EV_P_ ev_check *w) 3510ev_check_start (EV_P_ ev_check *w)
3340{ 3511{
3341 if (expect_false (ev_is_active (w))) 3512 if (expect_false (ev_is_active (w)))
3342 return; 3513 return;
… …
3368 3539
3369 ev_stop (EV_A_ (W)w); 3540 ev_stop (EV_A_ (W)w);
3370 3541
3371 EV_FREQUENT_CHECK; 3542 EV_FREQUENT_CHECK;
3372} 3543}
3544#endif
3373 3545
3374#if EV_EMBED_ENABLE 3546#if EV_EMBED_ENABLE
3375void noinline 3547void noinline
3376ev_embed_sweep (EV_P_ ev_embed *w) 3548ev_embed_sweep (EV_P_ ev_embed *w)
3377{ 3549{
3378 ev_loop (w->other, EVLOOP_NONBLOCK); 3550 ev_run (w->other, EVRUN_NOWAIT);
3379} 3551}
3380 3552
3381static void 3553static void
3382embed_io_cb (EV_P_ ev_io *io, int revents) 3554embed_io_cb (EV_P_ ev_io *io, int revents)
3383{ 3555{
3384 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3556 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3385 3557
3386 if (ev_cb (w)) 3558 if (ev_cb (w))
3387 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3559 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3388 else 3560 else
3389 ev_loop (w->other, EVLOOP_NONBLOCK); 3561 ev_run (w->other, EVRUN_NOWAIT);
3390} 3562}
3391 3563
3392static void 3564static void
3393embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3565embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3394{ 3566{
… …
3398 EV_P = w->other; 3570 EV_P = w->other;
3399 3571
3400 while (fdchangecnt) 3572 while (fdchangecnt)
3401 { 3573 {
3402 fd_reify (EV_A); 3574 fd_reify (EV_A);
3403 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3575 ev_run (EV_A_ EVRUN_NOWAIT);
3404 } 3576 }
3405 } 3577 }
3406} 3578}
3407 3579
3408static void 3580static void
… …
3414 3586
3415 { 3587 {
3416 EV_P = w->other; 3588 EV_P = w->other;
3417 3589
3418 ev_loop_fork (EV_A); 3590 ev_loop_fork (EV_A);
3419 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3591 ev_run (EV_A_ EVRUN_NOWAIT);
3420 } 3592 }
3421 3593
3422 ev_embed_start (EV_A_ w); 3594 ev_embed_start (EV_A_ w);
3423} 3595}
3424 3596
… …
3516 3688
3517 EV_FREQUENT_CHECK; 3689 EV_FREQUENT_CHECK;
3518} 3690}
3519#endif 3691#endif
3520 3692
3521#if EV_ASYNC_ENABLE 3693#if EV_CLEANUP_ENABLE
3522void 3694void
3523ev_async_start (EV_P_ ev_async *w) 3695ev_cleanup_start (EV_P_ ev_cleanup *w)
3524{ 3696{
3525 if (expect_false (ev_is_active (w))) 3697 if (expect_false (ev_is_active (w)))
3526 return; 3698 return;
3699
3700 EV_FREQUENT_CHECK;
3701
3702 ev_start (EV_A_ (W)w, ++cleanupcnt);
3703 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3704 cleanups [cleanupcnt - 1] = w;
3705
3706 /* cleanup watchers should never keep a refcount on the loop */
3707 ev_unref (EV_A);
3708 EV_FREQUENT_CHECK;
3709}
3710
3711void
3712ev_cleanup_stop (EV_P_ ev_cleanup *w)
3713{
3714 clear_pending (EV_A_ (W)w);
3715 if (expect_false (!ev_is_active (w)))
3716 return;
3717
3718 EV_FREQUENT_CHECK;
3719 ev_ref (EV_A);
3720
3721 {
3722 int active = ev_active (w);
3723
3724 cleanups [active - 1] = cleanups [--cleanupcnt];
3725 ev_active (cleanups [active - 1]) = active;
3726 }
3727
3728 ev_stop (EV_A_ (W)w);
3729
3730 EV_FREQUENT_CHECK;
3731}
3732#endif
3733
3734#if EV_ASYNC_ENABLE
3735void
3736ev_async_start (EV_P_ ev_async *w)
3737{
3738 if (expect_false (ev_is_active (w)))
3739 return;
3740
3741 w->sent = 0;
3527 3742
3528 evpipe_init (EV_A); 3743 evpipe_init (EV_A);
3529 3744
3530 EV_FREQUENT_CHECK; 3745 EV_FREQUENT_CHECK;
3531 3746
… …
3609{ 3824{
3610 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3825 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3611 3826
3612 if (expect_false (!once)) 3827 if (expect_false (!once))
3613 { 3828 {
3614 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3829 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3615 return; 3830 return;
3616 } 3831 }
3617 3832
3618 once->cb = cb; 3833 once->cb = cb;
3619 once->arg = arg; 3834 once->arg = arg;
… …
3706 if (types & EV_ASYNC) 3921 if (types & EV_ASYNC)
3707 for (i = asynccnt; i--; ) 3922 for (i = asynccnt; i--; )
3708 cb (EV_A_ EV_ASYNC, asyncs [i]); 3923 cb (EV_A_ EV_ASYNC, asyncs [i]);
3709#endif 3924#endif
3710 3925
3926#if EV_PREPARE_ENABLE
3711 if (types & EV_PREPARE) 3927 if (types & EV_PREPARE)
3712 for (i = preparecnt; i--; ) 3928 for (i = preparecnt; i--; )
3713#if EV_EMBED_ENABLE 3929# if EV_EMBED_ENABLE
3714 if (ev_cb (prepares [i]) != embed_prepare_cb) 3930 if (ev_cb (prepares [i]) != embed_prepare_cb)
3715#endif 3931# endif
3716 cb (EV_A_ EV_PREPARE, prepares [i]); 3932 cb (EV_A_ EV_PREPARE, prepares [i]);
3933#endif
3717 3934
3935#if EV_CHECK_ENABLE
3718 if (types & EV_CHECK) 3936 if (types & EV_CHECK)
3719 for (i = checkcnt; i--; ) 3937 for (i = checkcnt; i--; )
3720 cb (EV_A_ EV_CHECK, checks [i]); 3938 cb (EV_A_ EV_CHECK, checks [i]);
3939#endif
3721 3940
3941#if EV_SIGNAL_ENABLE
3722 if (types & EV_SIGNAL) 3942 if (types & EV_SIGNAL)
3723 for (i = 0; i < EV_NSIG - 1; ++i) 3943 for (i = 0; i < EV_NSIG - 1; ++i)
3724 for (wl = signals [i].head; wl; ) 3944 for (wl = signals [i].head; wl; )
3725 { 3945 {
3726 wn = wl->next; 3946 wn = wl->next;
3727 cb (EV_A_ EV_SIGNAL, wl); 3947 cb (EV_A_ EV_SIGNAL, wl);
3728 wl = wn; 3948 wl = wn;
3729 } 3949 }
3950#endif
3730 3951
3952#if EV_CHILD_ENABLE
3731 if (types & EV_CHILD) 3953 if (types & EV_CHILD)
3732 for (i = EV_PID_HASHSIZE; i--; ) 3954 for (i = (EV_PID_HASHSIZE); i--; )
3733 for (wl = childs [i]; wl; ) 3955 for (wl = childs [i]; wl; )
3734 { 3956 {
3735 wn = wl->next; 3957 wn = wl->next;
3736 cb (EV_A_ EV_CHILD, wl); 3958 cb (EV_A_ EV_CHILD, wl);
3737 wl = wn; 3959 wl = wn;
3738 } 3960 }
3961#endif
3739/* EV_STAT 0x00001000 /* stat data changed */ 3962/* EV_STAT 0x00001000 /* stat data changed */
3740/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 3963/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3741} 3964}
3742#endif 3965#endif
3743 3966
3744#if EV_MULTIPLICITY 3967#if EV_MULTIPLICITY
3745 #include "ev_wrap.h" 3968 #include "ev_wrap.h"
3746#endif 3969#endif
3747 3970
3748#ifdef __cplusplus 3971EV_CPP(})
3749}
3750#endif
3751 3972

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