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Comparing libev/ev.c (file contents):
Revision 1.293 by root, Mon Jun 29 18:46:52 2009 UTC vs.
Revision 1.382 by sf-exg, Thu Jun 30 13:13:59 2011 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
10 * 1. Redistributions of source code must retain the above copyright notice, 10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 11 * this list of conditions and the following disclaimer.
12 * 12 *
13 * 2. Redistributions in binary form must reproduce the above copyright 13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the 14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution. 15 * documentation and/or other materials provided with the distribution.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- 20 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44/* this big block deduces configuration from config.h */ 40/* this big block deduces configuration from config.h */
45#ifndef EV_STANDALONE 41#ifndef EV_STANDALONE
46# ifdef EV_CONFIG_H 42# ifdef EV_CONFIG_H
47# include EV_CONFIG_H 43# include EV_CONFIG_H
48# else 44# else
49# include "config.h" 45# include "config.h"
50# endif 46# endif
47
48#if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52#endif
51 53
52# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
53# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
54# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
55# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
77# ifndef EV_USE_REALTIME 79# ifndef EV_USE_REALTIME
78# define EV_USE_REALTIME 0 80# define EV_USE_REALTIME 0
79# endif 81# endif
80# endif 82# endif
81 83
84# if HAVE_NANOSLEEP
82# ifndef EV_USE_NANOSLEEP 85# ifndef EV_USE_NANOSLEEP
83# if HAVE_NANOSLEEP
84# define EV_USE_NANOSLEEP 1 86# define EV_USE_NANOSLEEP EV_FEATURE_OS
87# endif
85# else 88# else
89# undef EV_USE_NANOSLEEP
86# define EV_USE_NANOSLEEP 0 90# define EV_USE_NANOSLEEP 0
91# endif
92
93# if HAVE_SELECT && HAVE_SYS_SELECT_H
94# ifndef EV_USE_SELECT
95# define EV_USE_SELECT EV_FEATURE_BACKENDS
87# endif 96# endif
97# else
98# undef EV_USE_SELECT
99# define EV_USE_SELECT 0
88# endif 100# endif
89 101
102# if HAVE_POLL && HAVE_POLL_H
90# ifndef EV_USE_SELECT 103# ifndef EV_USE_POLL
91# if HAVE_SELECT && HAVE_SYS_SELECT_H 104# define EV_USE_POLL EV_FEATURE_BACKENDS
92# define EV_USE_SELECT 1
93# else
94# define EV_USE_SELECT 0
95# endif 105# endif
96# endif
97
98# ifndef EV_USE_POLL
99# if HAVE_POLL && HAVE_POLL_H
100# define EV_USE_POLL 1
101# else 106# else
107# undef EV_USE_POLL
102# define EV_USE_POLL 0 108# define EV_USE_POLL 0
103# endif
104# endif 109# endif
105 110
106# ifndef EV_USE_EPOLL
107# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H 111# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
108# define EV_USE_EPOLL 1 112# ifndef EV_USE_EPOLL
109# else 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
114# ifndef EV_USE_KQUEUE 121# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
116# define EV_USE_KQUEUE 1
117# else
118# define EV_USE_KQUEUE 0
119# endif 123# endif
124# else
125# undef EV_USE_KQUEUE
126# define EV_USE_KQUEUE 0
120# endif 127# endif
121 128
122# ifndef EV_USE_PORT
123# if HAVE_PORT_H && HAVE_PORT_CREATE 129# if HAVE_PORT_H && HAVE_PORT_CREATE
124# define EV_USE_PORT 1 130# ifndef EV_USE_PORT
125# else 131# define EV_USE_PORT EV_FEATURE_BACKENDS
126# define EV_USE_PORT 0
127# endif 132# endif
133# else
134# undef EV_USE_PORT
135# define EV_USE_PORT 0
128# endif 136# endif
129 137
130# ifndef EV_USE_INOTIFY
131# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H 138# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
132# define EV_USE_INOTIFY 1 139# ifndef EV_USE_INOTIFY
133# else
134# define EV_USE_INOTIFY 0 140# define EV_USE_INOTIFY EV_FEATURE_OS
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
138# ifndef EV_USE_EVENTFD 148# ifndef EV_USE_SIGNALFD
139# if HAVE_EVENTFD 149# define EV_USE_SIGNALFD EV_FEATURE_OS
140# define EV_USE_EVENTFD 1
141# else
142# define EV_USE_EVENTFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
154# endif
155
156# if HAVE_EVENTFD
157# ifndef EV_USE_EVENTFD
158# define EV_USE_EVENTFD EV_FEATURE_OS
159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
144# endif 163# endif
145 164
146#endif 165#endif
147 166
148#include <math.h>
149#include <stdlib.h> 167#include <stdlib.h>
168#include <string.h>
150#include <fcntl.h> 169#include <fcntl.h>
151#include <stddef.h> 170#include <stddef.h>
152 171
153#include <stdio.h> 172#include <stdio.h>
154 173
155#include <assert.h> 174#include <assert.h>
156#include <errno.h> 175#include <errno.h>
157#include <sys/types.h> 176#include <sys/types.h>
158#include <time.h> 177#include <time.h>
178#include <limits.h>
159 179
160#include <signal.h> 180#include <signal.h>
161 181
162#ifdef EV_H 182#ifdef EV_H
163# include EV_H 183# include EV_H
164#else 184#else
165# include "ev.h" 185# include "ev.h"
166#endif 186#endif
187
188EV_CPP(extern "C" {)
167 189
168#ifndef _WIN32 190#ifndef _WIN32
169# include <sys/time.h> 191# include <sys/time.h>
170# include <sys/wait.h> 192# include <sys/wait.h>
171# include <unistd.h> 193# include <unistd.h>
… …
174# define WIN32_LEAN_AND_MEAN 196# define WIN32_LEAN_AND_MEAN
175# include <windows.h> 197# include <windows.h>
176# ifndef EV_SELECT_IS_WINSOCKET 198# ifndef EV_SELECT_IS_WINSOCKET
177# define EV_SELECT_IS_WINSOCKET 1 199# define EV_SELECT_IS_WINSOCKET 1
178# endif 200# endif
201# undef EV_AVOID_STDIO
179#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
180 211
181/* 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 */
213
214/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG)
216/* use what's provided */
217#elif defined (NSIG)
218# define EV_NSIG (NSIG)
219#elif defined(_NSIG)
220# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX)
222# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX)
224# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX)
226# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG)
228# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG)
230# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE)
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig)
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else
236# error "unable to find value for NSIG, please report"
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif
241
242#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0
244#endif
182 245
183#ifndef EV_USE_CLOCK_SYSCALL 246#ifndef EV_USE_CLOCK_SYSCALL
184# if __linux && __GLIBC__ >= 2 247# if __linux && __GLIBC__ >= 2
185# define EV_USE_CLOCK_SYSCALL 1 248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
186# else 249# else
187# define EV_USE_CLOCK_SYSCALL 0 250# define EV_USE_CLOCK_SYSCALL 0
188# endif 251# endif
189#endif 252#endif
190 253
191#ifndef EV_USE_MONOTONIC 254#ifndef EV_USE_MONOTONIC
192# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0
193# define EV_USE_MONOTONIC 1 256# define EV_USE_MONOTONIC EV_FEATURE_OS
194# else 257# else
195# define EV_USE_MONOTONIC 0 258# define EV_USE_MONOTONIC 0
196# endif 259# endif
197#endif 260#endif
198 261
… …
200# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL 263# define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL
201#endif 264#endif
202 265
203#ifndef EV_USE_NANOSLEEP 266#ifndef EV_USE_NANOSLEEP
204# if _POSIX_C_SOURCE >= 199309L 267# if _POSIX_C_SOURCE >= 199309L
205# define EV_USE_NANOSLEEP 1 268# define EV_USE_NANOSLEEP EV_FEATURE_OS
206# else 269# else
207# define EV_USE_NANOSLEEP 0 270# define EV_USE_NANOSLEEP 0
208# endif 271# endif
209#endif 272#endif
210 273
211#ifndef EV_USE_SELECT 274#ifndef EV_USE_SELECT
212# define EV_USE_SELECT 1 275# define EV_USE_SELECT EV_FEATURE_BACKENDS
213#endif 276#endif
214 277
215#ifndef EV_USE_POLL 278#ifndef EV_USE_POLL
216# ifdef _WIN32 279# ifdef _WIN32
217# define EV_USE_POLL 0 280# define EV_USE_POLL 0
218# else 281# else
219# define EV_USE_POLL 1 282# define EV_USE_POLL EV_FEATURE_BACKENDS
220# endif 283# endif
221#endif 284#endif
222 285
223#ifndef EV_USE_EPOLL 286#ifndef EV_USE_EPOLL
224# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 287# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
225# define EV_USE_EPOLL 1 288# define EV_USE_EPOLL EV_FEATURE_BACKENDS
226# else 289# else
227# define EV_USE_EPOLL 0 290# define EV_USE_EPOLL 0
228# endif 291# endif
229#endif 292#endif
230 293
… …
236# define EV_USE_PORT 0 299# define EV_USE_PORT 0
237#endif 300#endif
238 301
239#ifndef EV_USE_INOTIFY 302#ifndef EV_USE_INOTIFY
240# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 303# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
241# define EV_USE_INOTIFY 1 304# define EV_USE_INOTIFY EV_FEATURE_OS
242# else 305# else
243# define EV_USE_INOTIFY 0 306# define EV_USE_INOTIFY 0
244# endif 307# endif
245#endif 308#endif
246 309
247#ifndef EV_PID_HASHSIZE 310#ifndef EV_PID_HASHSIZE
248# if EV_MINIMAL 311# define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1
249# define EV_PID_HASHSIZE 1
250# else
251# define EV_PID_HASHSIZE 16
252# endif
253#endif 312#endif
254 313
255#ifndef EV_INOTIFY_HASHSIZE 314#ifndef EV_INOTIFY_HASHSIZE
256# if EV_MINIMAL 315# define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1
257# define EV_INOTIFY_HASHSIZE 1
258# else
259# define EV_INOTIFY_HASHSIZE 16
260# endif
261#endif 316#endif
262 317
263#ifndef EV_USE_EVENTFD 318#ifndef EV_USE_EVENTFD
264# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
265# define EV_USE_EVENTFD 1 320# define EV_USE_EVENTFD EV_FEATURE_OS
266# else 321# else
267# define EV_USE_EVENTFD 0 322# define EV_USE_EVENTFD 0
323# endif
324#endif
325
326#ifndef EV_USE_SIGNALFD
327# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
328# define EV_USE_SIGNALFD EV_FEATURE_OS
329# else
330# define EV_USE_SIGNALFD 0
268# endif 331# endif
269#endif 332#endif
270 333
271#if 0 /* debugging */ 334#if 0 /* debugging */
272# define EV_VERIFY 3 335# define EV_VERIFY 3
273# define EV_USE_4HEAP 1 336# define EV_USE_4HEAP 1
274# define EV_HEAP_CACHE_AT 1 337# define EV_HEAP_CACHE_AT 1
275#endif 338#endif
276 339
277#ifndef EV_VERIFY 340#ifndef EV_VERIFY
278# define EV_VERIFY !EV_MINIMAL 341# define EV_VERIFY (EV_FEATURE_API ? 1 : 0)
279#endif 342#endif
280 343
281#ifndef EV_USE_4HEAP 344#ifndef EV_USE_4HEAP
282# define EV_USE_4HEAP !EV_MINIMAL 345# define EV_USE_4HEAP EV_FEATURE_DATA
283#endif 346#endif
284 347
285#ifndef EV_HEAP_CACHE_AT 348#ifndef EV_HEAP_CACHE_AT
286# define EV_HEAP_CACHE_AT !EV_MINIMAL 349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
287#endif 350#endif
288 351
289/* 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, */
290/* which makes programs even slower. might work on other unices, too. */ 353/* which makes programs even slower. might work on other unices, too. */
291#if EV_USE_CLOCK_SYSCALL 354#if EV_USE_CLOCK_SYSCALL
… …
300# endif 363# endif
301#endif 364#endif
302 365
303/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 366/* this block fixes any misconfiguration where we know we run into trouble otherwise */
304 367
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
305#ifndef CLOCK_MONOTONIC 374#ifndef CLOCK_MONOTONIC
306# undef EV_USE_MONOTONIC 375# undef EV_USE_MONOTONIC
307# define EV_USE_MONOTONIC 0 376# define EV_USE_MONOTONIC 0
308#endif 377#endif
309 378
… …
316# undef EV_USE_INOTIFY 385# undef EV_USE_INOTIFY
317# define EV_USE_INOTIFY 0 386# define EV_USE_INOTIFY 0
318#endif 387#endif
319 388
320#if !EV_USE_NANOSLEEP 389#if !EV_USE_NANOSLEEP
321# ifndef _WIN32 390/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux)
322# include <sys/select.h> 392# include <sys/select.h>
323# endif 393# endif
324#endif 394#endif
325 395
326#if EV_USE_INOTIFY 396#if EV_USE_INOTIFY
327# include <sys/utsname.h>
328# include <sys/statfs.h> 397# include <sys/statfs.h>
329# include <sys/inotify.h> 398# include <sys/inotify.h>
330/* 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 */
331# ifndef IN_DONT_FOLLOW 400# ifndef IN_DONT_FOLLOW
332# undef EV_USE_INOTIFY 401# undef EV_USE_INOTIFY
… …
339#endif 408#endif
340 409
341#if EV_USE_EVENTFD 410#if EV_USE_EVENTFD
342/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
343# include <stdint.h> 412# include <stdint.h>
344# ifdef __cplusplus 413# ifndef EFD_NONBLOCK
345extern "C" { 414# define EFD_NONBLOCK O_NONBLOCK
346# endif 415# endif
347int eventfd (unsigned int initval, int flags); 416# ifndef EFD_CLOEXEC
348# ifdef __cplusplus 417# ifdef O_CLOEXEC
349} 418# define EFD_CLOEXEC O_CLOEXEC
419# else
420# define EFD_CLOEXEC 02000000
421# endif
350# endif 422# endif
423EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
424#endif
425
426#if EV_USE_SIGNALFD
427/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
428# include <stdint.h>
429# ifndef SFD_NONBLOCK
430# define SFD_NONBLOCK O_NONBLOCK
431# endif
432# ifndef SFD_CLOEXEC
433# ifdef O_CLOEXEC
434# define SFD_CLOEXEC O_CLOEXEC
435# else
436# define SFD_CLOEXEC 02000000
437# endif
438# endif
439EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
440
441struct signalfd_siginfo
442{
443 uint32_t ssi_signo;
444 char pad[128 - sizeof (uint32_t)];
445};
351#endif 446#endif
352 447
353/**/ 448/**/
354 449
355#if EV_VERIFY >= 3 450#if EV_VERIFY >= 3
356# define EV_FREQUENT_CHECK ev_loop_verify (EV_A) 451# define EV_FREQUENT_CHECK ev_verify (EV_A)
357#else 452#else
358# define EV_FREQUENT_CHECK do { } while (0) 453# define EV_FREQUENT_CHECK do { } while (0)
359#endif 454#endif
360 455
361/* 456/*
362 * This is used to avoid floating point rounding problems. 457 * This is used to work around floating point rounding problems.
363 * It is added to ev_rt_now when scheduling periodics
364 * to ensure progress, time-wise, even when rounding
365 * errors are against us.
366 * This value is good at least till the year 4000. 458 * This value is good at least till the year 4000.
367 * Better solutions welcome.
368 */ 459 */
369#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 */
370 462
371#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) */
372#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) */
373/*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */
374 465
375#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)
376# 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)
377# 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
378#else 493#else
379# define expect(expr,value) (expr) 494 #define ecb_inline static
380# define noinline
381# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
382# define inline
383# endif 495#endif
384#endif
385 496
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. */
386#define expect_false(expr) expect ((expr) != 0, 0) 528#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
387#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
388#define inline_size static inline 536#define inline_size ecb_inline
389 537
390#if EV_MINIMAL 538#if EV_FEATURE_CODE
539# define inline_speed ecb_inline
540#else
391# define inline_speed static noinline 541# define inline_speed static noinline
542#endif
543
544#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
545
546#if EV_MINPRI == EV_MAXPRI
547# define ABSPRI(w) (((W)w), 0)
392#else 548#else
393# define inline_speed static inline
394#endif
395
396#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
397#define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 549# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
550#endif
398 551
399#define EMPTY /* required for microsofts broken pseudo-c compiler */ 552#define EMPTY /* required for microsofts broken pseudo-c compiler */
400#define EMPTY2(a,b) /* used to suppress some warnings */ 553#define EMPTY2(a,b) /* used to suppress some warnings */
401 554
402typedef ev_watcher *W; 555typedef ev_watcher *W;
… …
406#define ev_active(w) ((W)(w))->active 559#define ev_active(w) ((W)(w))->active
407#define ev_at(w) ((WT)(w))->at 560#define ev_at(w) ((WT)(w))->at
408 561
409#if EV_USE_REALTIME 562#if EV_USE_REALTIME
410/* 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 */
411/* giving it a reasonably high chance of working on typical architetcures */ 564/* giving it a reasonably high chance of working on typical architectures */
412static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 565static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
413#endif 566#endif
414 567
415#if EV_USE_MONOTONIC 568#if EV_USE_MONOTONIC
416static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 569static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
417#endif 570#endif
418 571
572#ifndef EV_FD_TO_WIN32_HANDLE
573# define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd)
574#endif
575#ifndef EV_WIN32_HANDLE_TO_FD
576# define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0)
577#endif
578#ifndef EV_WIN32_CLOSE_FD
579# define EV_WIN32_CLOSE_FD(fd) close (fd)
580#endif
581
419#ifdef _WIN32 582#ifdef _WIN32
420# include "ev_win32.c" 583# include "ev_win32.c"
421#endif 584#endif
422 585
423/*****************************************************************************/ 586/*****************************************************************************/
424 587
588/* define a suitable floor function (only used by periodics atm) */
589
590#if EV_USE_FLOOR
591# include <math.h>
592# define ev_floor(v) floor (v)
593#else
594
595#include <float.h>
596
597/* a floor() replacement function, should be independent of ev_tstamp type */
598static ev_tstamp noinline
599ev_floor (ev_tstamp v)
600{
601 /* the choice of shift factor is not terribly important */
602#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
603 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
604#else
605 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
606#endif
607
608 /* argument too large for an unsigned long? */
609 if (expect_false (v >= shift))
610 {
611 ev_tstamp f;
612
613 if (v == v - 1.)
614 return v; /* very large number */
615
616 f = shift * ev_floor (v * (1. / shift));
617 return f + ev_floor (v - f);
618 }
619
620 /* special treatment for negative args? */
621 if (expect_false (v < 0.))
622 {
623 ev_tstamp f = -ev_floor (-v);
624
625 return f - (f == v ? 0 : 1);
626 }
627
628 /* fits into an unsigned long */
629 return (unsigned long)v;
630}
631
632#endif
633
634/*****************************************************************************/
635
636#ifdef __linux
637# include <sys/utsname.h>
638#endif
639
640static unsigned int noinline ecb_cold
641ev_linux_version (void)
642{
643#ifdef __linux
644 unsigned int v = 0;
645 struct utsname buf;
646 int i;
647 char *p = buf.release;
648
649 if (uname (&buf))
650 return 0;
651
652 for (i = 3+1; --i; )
653 {
654 unsigned int c = 0;
655
656 for (;;)
657 {
658 if (*p >= '0' && *p <= '9')
659 c = c * 10 + *p++ - '0';
660 else
661 {
662 p += *p == '.';
663 break;
664 }
665 }
666
667 v = (v << 8) | c;
668 }
669
670 return v;
671#else
672 return 0;
673#endif
674}
675
676/*****************************************************************************/
677
678#if EV_AVOID_STDIO
679static void noinline ecb_cold
680ev_printerr (const char *msg)
681{
682 write (STDERR_FILENO, msg, strlen (msg));
683}
684#endif
685
425static void (*syserr_cb)(const char *msg); 686static void (*syserr_cb)(const char *msg);
426 687
427void 688void ecb_cold
428ev_set_syserr_cb (void (*cb)(const char *msg)) 689ev_set_syserr_cb (void (*cb)(const char *msg))
429{ 690{
430 syserr_cb = cb; 691 syserr_cb = cb;
431} 692}
432 693
433static void noinline 694static void noinline ecb_cold
434ev_syserr (const char *msg) 695ev_syserr (const char *msg)
435{ 696{
436 if (!msg) 697 if (!msg)
437 msg = "(libev) system error"; 698 msg = "(libev) system error";
438 699
439 if (syserr_cb) 700 if (syserr_cb)
440 syserr_cb (msg); 701 syserr_cb (msg);
441 else 702 else
442 { 703 {
704#if EV_AVOID_STDIO
705 ev_printerr (msg);
706 ev_printerr (": ");
707 ev_printerr (strerror (errno));
708 ev_printerr ("\n");
709#else
443 perror (msg); 710 perror (msg);
711#endif
444 abort (); 712 abort ();
445 } 713 }
446} 714}
447 715
448static void * 716static void *
449ev_realloc_emul (void *ptr, long size) 717ev_realloc_emul (void *ptr, long size)
450{ 718{
719#if __GLIBC__
720 return realloc (ptr, size);
721#else
451 /* some systems, notably openbsd and darwin, fail to properly 722 /* some systems, notably openbsd and darwin, fail to properly
452 * 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
453 * the single unix specification, so work around them here. 724 * the single unix specification, so work around them here.
454 */ 725 */
455 726
456 if (size) 727 if (size)
457 return realloc (ptr, size); 728 return realloc (ptr, size);
458 729
459 free (ptr); 730 free (ptr);
460 return 0; 731 return 0;
732#endif
461} 733}
462 734
463static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 735static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
464 736
465void 737void ecb_cold
466ev_set_allocator (void *(*cb)(void *ptr, long size)) 738ev_set_allocator (void *(*cb)(void *ptr, long size))
467{ 739{
468 alloc = cb; 740 alloc = cb;
469} 741}
470 742
… …
473{ 745{
474 ptr = alloc (ptr, size); 746 ptr = alloc (ptr, size);
475 747
476 if (!ptr && size) 748 if (!ptr && size)
477 { 749 {
750#if EV_AVOID_STDIO
751 ev_printerr ("(libev) memory allocation failed, aborting.\n");
752#else
478 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 753 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
754#endif
479 abort (); 755 abort ();
480 } 756 }
481 757
482 return ptr; 758 return ptr;
483} 759}
… …
485#define ev_malloc(size) ev_realloc (0, (size)) 761#define ev_malloc(size) ev_realloc (0, (size))
486#define ev_free(ptr) ev_realloc ((ptr), 0) 762#define ev_free(ptr) ev_realloc ((ptr), 0)
487 763
488/*****************************************************************************/ 764/*****************************************************************************/
489 765
766/* set in reify when reification needed */
767#define EV_ANFD_REIFY 1
768
490/* file descriptor info structure */ 769/* file descriptor info structure */
491typedef struct 770typedef struct
492{ 771{
493 WL head; 772 WL head;
494 unsigned char events; /* the events watched for */ 773 unsigned char events; /* the events watched for */
495 unsigned char reify; /* flag set when this ANFD needs reification */ 774 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
496 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 */
497 unsigned char unused; 776 unsigned char unused;
498#if EV_USE_EPOLL 777#if EV_USE_EPOLL
499 unsigned int egen; /* generation counter to counter epoll bugs */ 778 unsigned int egen; /* generation counter to counter epoll bugs */
500#endif 779#endif
501#if EV_SELECT_IS_WINSOCKET 780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
502 SOCKET handle; 781 SOCKET handle;
782#endif
783#if EV_USE_IOCP
784 OVERLAPPED or, ow;
503#endif 785#endif
504} ANFD; 786} ANFD;
505 787
506/* stores the pending event set for a given watcher */ 788/* stores the pending event set for a given watcher */
507typedef struct 789typedef struct
… …
562 844
563 static int ev_default_loop_ptr; 845 static int ev_default_loop_ptr;
564 846
565#endif 847#endif
566 848
849#if EV_FEATURE_API
850# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A)
851# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A)
852# define EV_INVOKE_PENDING invoke_cb (EV_A)
853#else
854# define EV_RELEASE_CB (void)0
855# define EV_ACQUIRE_CB (void)0
856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
857#endif
858
859#define EVBREAK_RECURSE 0x80
860
567/*****************************************************************************/ 861/*****************************************************************************/
568 862
569#ifndef EV_HAVE_EV_TIME 863#ifndef EV_HAVE_EV_TIME
570ev_tstamp 864ev_tstamp
571ev_time (void) 865ev_time (void)
… …
614 if (delay > 0.) 908 if (delay > 0.)
615 { 909 {
616#if EV_USE_NANOSLEEP 910#if EV_USE_NANOSLEEP
617 struct timespec ts; 911 struct timespec ts;
618 912
619 ts.tv_sec = (time_t)delay; 913 EV_TS_SET (ts, delay);
620 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
621
622 nanosleep (&ts, 0); 914 nanosleep (&ts, 0);
623#elif defined(_WIN32) 915#elif defined(_WIN32)
624 Sleep ((unsigned long)(delay * 1e3)); 916 Sleep ((unsigned long)(delay * 1e3));
625#else 917#else
626 struct timeval tv; 918 struct timeval tv;
627 919
628 tv.tv_sec = (time_t)delay;
629 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
630
631 /* 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 */
632 /* somehting not guaranteed by newer posix versions, but guaranteed */ 921 /* something not guaranteed by newer posix versions, but guaranteed */
633 /* by older ones */ 922 /* by older ones */
923 EV_TV_SET (tv, delay);
634 select (0, 0, 0, 0, &tv); 924 select (0, 0, 0, 0, &tv);
635#endif 925#endif
636 } 926 }
637} 927}
638 928
639/*****************************************************************************/ 929/*****************************************************************************/
640 930
641#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 */
642 932
643/* find a suitable new size for the given array, */ 933/* find a suitable new size for the given array, */
644/* hopefully by rounding to a ncie-to-malloc size */ 934/* hopefully by rounding to a nice-to-malloc size */
645inline_size int 935inline_size int
646array_nextsize (int elem, int cur, int cnt) 936array_nextsize (int elem, int cur, int cnt)
647{ 937{
648 int ncur = cur + 1; 938 int ncur = cur + 1;
649 939
… …
661 } 951 }
662 952
663 return ncur; 953 return ncur;
664} 954}
665 955
666static noinline void * 956static void * noinline ecb_cold
667array_realloc (int elem, void *base, int *cur, int cnt) 957array_realloc (int elem, void *base, int *cur, int cnt)
668{ 958{
669 *cur = array_nextsize (elem, *cur, cnt); 959 *cur = array_nextsize (elem, *cur, cnt);
670 return ev_realloc (base, elem * *cur); 960 return ev_realloc (base, elem * *cur);
671} 961}
… …
674 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
675 965
676#define array_needsize(type,base,cur,cnt,init) \ 966#define array_needsize(type,base,cur,cnt,init) \
677 if (expect_false ((cnt) > (cur))) \ 967 if (expect_false ((cnt) > (cur))) \
678 { \ 968 { \
679 int ocur_ = (cur); \ 969 int ecb_unused ocur_ = (cur); \
680 (base) = (type *)array_realloc \ 970 (base) = (type *)array_realloc \
681 (sizeof (type), (base), &(cur), (cnt)); \ 971 (sizeof (type), (base), &(cur), (cnt)); \
682 init ((base) + (ocur_), (cur) - ocur_); \ 972 init ((base) + (ocur_), (cur) - ocur_); \
683 } 973 }
684 974
… …
745} 1035}
746 1036
747/*****************************************************************************/ 1037/*****************************************************************************/
748 1038
749inline_speed void 1039inline_speed void
750fd_event (EV_P_ int fd, int revents) 1040fd_event_nocheck (EV_P_ int fd, int revents)
751{ 1041{
752 ANFD *anfd = anfds + fd; 1042 ANFD *anfd = anfds + fd;
753 ev_io *w; 1043 ev_io *w;
754 1044
755 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)
… …
759 if (ev) 1049 if (ev)
760 ev_feed_event (EV_A_ (W)w, ev); 1050 ev_feed_event (EV_A_ (W)w, ev);
761 } 1051 }
762} 1052}
763 1053
1054/* do not submit kernel events for fds that have reify set */
1055/* because that means they changed while we were polling for new events */
1056inline_speed void
1057fd_event (EV_P_ int fd, int revents)
1058{
1059 ANFD *anfd = anfds + fd;
1060
1061 if (expect_true (!anfd->reify))
1062 fd_event_nocheck (EV_A_ fd, revents);
1063}
1064
764void 1065void
765ev_feed_fd_event (EV_P_ int fd, int revents) 1066ev_feed_fd_event (EV_P_ int fd, int revents)
766{ 1067{
767 if (fd >= 0 && fd < anfdmax) 1068 if (fd >= 0 && fd < anfdmax)
768 fd_event (EV_A_ fd, revents); 1069 fd_event_nocheck (EV_A_ fd, revents);
769} 1070}
770 1071
771/* make sure the external fd watch events are in-sync */ 1072/* make sure the external fd watch events are in-sync */
772/* with the kernel/libev internal state */ 1073/* with the kernel/libev internal state */
773inline_size void 1074inline_size void
774fd_reify (EV_P) 1075fd_reify (EV_P)
775{ 1076{
776 int i; 1077 int i;
777 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
778 for (i = 0; i < fdchangecnt; ++i) 1104 for (i = 0; i < fdchangecnt; ++i)
779 { 1105 {
780 int fd = fdchanges [i]; 1106 int fd = fdchanges [i];
781 ANFD *anfd = anfds + fd; 1107 ANFD *anfd = anfds + fd;
782 ev_io *w; 1108 ev_io *w;
783 1109
784 unsigned char events = 0; 1110 unsigned char o_events = anfd->events;
1111 unsigned char o_reify = anfd->reify;
785 1112
786 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1113 anfd->reify = 0;
787 events |= (unsigned char)w->events;
788 1114
789#if EV_SELECT_IS_WINSOCKET 1115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
790 if (events)
791 { 1116 {
792 unsigned long arg; 1117 anfd->events = 0;
793 #ifdef EV_FD_TO_WIN32_HANDLE 1118
794 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1119 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
795 #else 1120 anfd->events |= (unsigned char)w->events;
796 anfd->handle = _get_osfhandle (fd); 1121
797 #endif 1122 if (o_events != anfd->events)
798 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1123 o_reify = EV__IOFDSET; /* actually |= */
799 } 1124 }
800#endif
801 1125
802 { 1126 if (o_reify & EV__IOFDSET)
803 unsigned char o_events = anfd->events;
804 unsigned char o_reify = anfd->reify;
805
806 anfd->reify = 0;
807 anfd->events = events;
808
809 if (o_events != events || o_reify & EV__IOFDSET)
810 backend_modify (EV_A_ fd, o_events, events); 1127 backend_modify (EV_A_ fd, o_events, anfd->events);
811 }
812 } 1128 }
813 1129
814 fdchangecnt = 0; 1130 fdchangecnt = 0;
815} 1131}
816 1132
… …
828 fdchanges [fdchangecnt - 1] = fd; 1144 fdchanges [fdchangecnt - 1] = fd;
829 } 1145 }
830} 1146}
831 1147
832/* 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 */
833inline_speed void 1149inline_speed void ecb_cold
834fd_kill (EV_P_ int fd) 1150fd_kill (EV_P_ int fd)
835{ 1151{
836 ev_io *w; 1152 ev_io *w;
837 1153
838 while ((w = (ev_io *)anfds [fd].head)) 1154 while ((w = (ev_io *)anfds [fd].head))
… …
840 ev_io_stop (EV_A_ w); 1156 ev_io_stop (EV_A_ w);
841 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);
842 } 1158 }
843} 1159}
844 1160
845/* check whether the given fd is atcually valid, for error recovery */ 1161/* check whether the given fd is actually valid, for error recovery */
846inline_size int 1162inline_size int ecb_cold
847fd_valid (int fd) 1163fd_valid (int fd)
848{ 1164{
849#ifdef _WIN32 1165#ifdef _WIN32
850 return _get_osfhandle (fd) != -1; 1166 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
851#else 1167#else
852 return fcntl (fd, F_GETFD) != -1; 1168 return fcntl (fd, F_GETFD) != -1;
853#endif 1169#endif
854} 1170}
855 1171
856/* called on EBADF to verify fds */ 1172/* called on EBADF to verify fds */
857static void noinline 1173static void noinline ecb_cold
858fd_ebadf (EV_P) 1174fd_ebadf (EV_P)
859{ 1175{
860 int fd; 1176 int fd;
861 1177
862 for (fd = 0; fd < anfdmax; ++fd) 1178 for (fd = 0; fd < anfdmax; ++fd)
… …
864 if (!fd_valid (fd) && errno == EBADF) 1180 if (!fd_valid (fd) && errno == EBADF)
865 fd_kill (EV_A_ fd); 1181 fd_kill (EV_A_ fd);
866} 1182}
867 1183
868/* 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 */
869static void noinline 1185static void noinline ecb_cold
870fd_enomem (EV_P) 1186fd_enomem (EV_P)
871{ 1187{
872 int fd; 1188 int fd;
873 1189
874 for (fd = anfdmax; fd--; ) 1190 for (fd = anfdmax; fd--; )
875 if (anfds [fd].events) 1191 if (anfds [fd].events)
876 { 1192 {
877 fd_kill (EV_A_ fd); 1193 fd_kill (EV_A_ fd);
878 return; 1194 break;
879 } 1195 }
880} 1196}
881 1197
882/* usually called after fork if backend needs to re-arm all fds from scratch */ 1198/* usually called after fork if backend needs to re-arm all fds from scratch */
883static void noinline 1199static void noinline
… …
888 for (fd = 0; fd < anfdmax; ++fd) 1204 for (fd = 0; fd < anfdmax; ++fd)
889 if (anfds [fd].events) 1205 if (anfds [fd].events)
890 { 1206 {
891 anfds [fd].events = 0; 1207 anfds [fd].events = 0;
892 anfds [fd].emask = 0; 1208 anfds [fd].emask = 0;
893 fd_change (EV_A_ fd, EV__IOFDSET | 1); 1209 fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY);
894 } 1210 }
895} 1211}
896 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
897/*****************************************************************************/ 1227/*****************************************************************************/
898 1228
899/* 1229/*
900 * 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
901 * 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
902 * the branching factor of the d-tree. 1232 * the branching factor of the d-tree.
903 */ 1233 */
904 1234
905/* 1235/*
… …
973 1303
974 for (;;) 1304 for (;;)
975 { 1305 {
976 int c = k << 1; 1306 int c = k << 1;
977 1307
978 if (c > N + HEAP0 - 1) 1308 if (c >= N + HEAP0)
979 break; 1309 break;
980 1310
981 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) 1311 c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1])
982 ? 1 : 0; 1312 ? 1 : 0;
983 1313
… …
1019 1349
1020/* move an element suitably so it is in a correct place */ 1350/* move an element suitably so it is in a correct place */
1021inline_size void 1351inline_size void
1022adjustheap (ANHE *heap, int N, int k) 1352adjustheap (ANHE *heap, int N, int k)
1023{ 1353{
1024 if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) 1354 if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)]))
1025 upheap (heap, k); 1355 upheap (heap, k);
1026 else 1356 else
1027 downheap (heap, N, k); 1357 downheap (heap, N, k);
1028} 1358}
1029 1359
… …
1042/*****************************************************************************/ 1372/*****************************************************************************/
1043 1373
1044/* associate signal watchers to a signal signal */ 1374/* associate signal watchers to a signal signal */
1045typedef struct 1375typedef struct
1046{ 1376{
1377 EV_ATOMIC_T pending;
1378#if EV_MULTIPLICITY
1379 EV_P;
1380#endif
1047 WL head; 1381 WL head;
1048 EV_ATOMIC_T gotsig;
1049} ANSIG; 1382} ANSIG;
1050 1383
1051static ANSIG *signals; 1384static ANSIG signals [EV_NSIG - 1];
1052static int signalmax;
1053
1054static EV_ATOMIC_T gotsig;
1055 1385
1056/*****************************************************************************/ 1386/*****************************************************************************/
1057 1387
1058/* used to prepare libev internal fd's */ 1388#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1059/* this is not fork-safe */
1060inline_speed void
1061fd_intern (int fd)
1062{
1063#ifdef _WIN32
1064 unsigned long arg = 1;
1065 ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg);
1066#else
1067 fcntl (fd, F_SETFD, FD_CLOEXEC);
1068 fcntl (fd, F_SETFL, O_NONBLOCK);
1069#endif
1070}
1071 1389
1072static void noinline 1390static void noinline ecb_cold
1073evpipe_init (EV_P) 1391evpipe_init (EV_P)
1074{ 1392{
1075 if (!ev_is_active (&pipe_w)) 1393 if (!ev_is_active (&pipe_w))
1076 { 1394 {
1077#if EV_USE_EVENTFD 1395# if EV_USE_EVENTFD
1396 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1397 if (evfd < 0 && errno == EINVAL)
1078 if ((evfd = eventfd (0, 0)) >= 0) 1398 evfd = eventfd (0, 0);
1399
1400 if (evfd >= 0)
1079 { 1401 {
1080 evpipe [0] = -1; 1402 evpipe [0] = -1;
1081 fd_intern (evfd); 1403 fd_intern (evfd); /* doing it twice doesn't hurt */
1082 ev_io_set (&pipe_w, evfd, EV_READ); 1404 ev_io_set (&pipe_w, evfd, EV_READ);
1083 } 1405 }
1084 else 1406 else
1085#endif 1407# endif
1086 { 1408 {
1087 while (pipe (evpipe)) 1409 while (pipe (evpipe))
1088 ev_syserr ("(libev) error creating signal/async pipe"); 1410 ev_syserr ("(libev) error creating signal/async pipe");
1089 1411
1090 fd_intern (evpipe [0]); 1412 fd_intern (evpipe [0]);
… …
1095 ev_io_start (EV_A_ &pipe_w); 1417 ev_io_start (EV_A_ &pipe_w);
1096 ev_unref (EV_A); /* watcher should not keep loop alive */ 1418 ev_unref (EV_A); /* watcher should not keep loop alive */
1097 } 1419 }
1098} 1420}
1099 1421
1100inline_size void 1422inline_speed void
1101evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1423evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1102{ 1424{
1103 if (!*flag) 1425 if (!*flag)
1104 { 1426 {
1105 int old_errno = errno; /* save errno because write might clobber it */
1106
1107 *flag = 1; 1427 *flag = 1;
1108 1428
1429 pipe_write_skipped = 1;
1430
1431 if (pipe_write_wanted)
1432 {
1433 int old_errno;
1434
1435 pipe_write_skipped = 0;
1436
1437 old_errno = errno; /* save errno because write will clobber it */
1438
1109#if EV_USE_EVENTFD 1439#if EV_USE_EVENTFD
1110 if (evfd >= 0) 1440 if (evfd >= 0)
1111 { 1441 {
1112 uint64_t counter = 1; 1442 uint64_t counter = 1;
1113 write (evfd, &counter, sizeof (uint64_t)); 1443 write (evfd, &counter, sizeof (uint64_t));
1444 }
1445 else
1446#endif
1447 {
1448 /* win32 people keep sending patches that change this write() to send() */
1449 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1450 /* so when you think this write should be a send instead, please find out */
1451 /* where your send() is from - it's definitely not the microsoft send, and */
1452 /* tell me. thank you. */
1453 write (evpipe [1], &(evpipe [1]), 1);
1454 }
1455
1456 errno = old_errno;
1114 } 1457 }
1115 else
1116#endif
1117 write (evpipe [1], &old_errno, 1);
1118
1119 errno = old_errno;
1120 } 1458 }
1121} 1459}
1122 1460
1123/* called whenever the libev signal pipe */ 1461/* called whenever the libev signal pipe */
1124/* got some events (signal, async) */ 1462/* got some events (signal, async) */
1125static void 1463static void
1126pipecb (EV_P_ ev_io *iow, int revents) 1464pipecb (EV_P_ ev_io *iow, int revents)
1127{ 1465{
1466 int i;
1467
1468 if (revents & EV_READ)
1469 {
1128#if EV_USE_EVENTFD 1470#if EV_USE_EVENTFD
1129 if (evfd >= 0) 1471 if (evfd >= 0)
1130 { 1472 {
1131 uint64_t counter; 1473 uint64_t counter;
1132 read (evfd, &counter, sizeof (uint64_t)); 1474 read (evfd, &counter, sizeof (uint64_t));
1133 } 1475 }
1134 else 1476 else
1135#endif 1477#endif
1136 { 1478 {
1137 char dummy; 1479 char dummy;
1480 /* see discussion in evpipe_write when you think this read should be recv in win32 */
1138 read (evpipe [0], &dummy, 1); 1481 read (evpipe [0], &dummy, 1);
1482 }
1483 }
1484
1485 pipe_write_skipped = 0;
1486
1487#if EV_SIGNAL_ENABLE
1488 if (sig_pending)
1139 } 1489 {
1490 sig_pending = 0;
1140 1491
1141 if (gotsig && ev_is_default_loop (EV_A)) 1492 for (i = EV_NSIG - 1; i--; )
1142 { 1493 if (expect_false (signals [i].pending))
1143 int signum;
1144 gotsig = 0;
1145
1146 for (signum = signalmax; signum--; )
1147 if (signals [signum].gotsig)
1148 ev_feed_signal_event (EV_A_ signum + 1); 1494 ev_feed_signal_event (EV_A_ i + 1);
1149 } 1495 }
1496#endif
1150 1497
1151#if EV_ASYNC_ENABLE 1498#if EV_ASYNC_ENABLE
1152 if (gotasync) 1499 if (async_pending)
1153 { 1500 {
1154 int i; 1501 async_pending = 0;
1155 gotasync = 0;
1156 1502
1157 for (i = asynccnt; i--; ) 1503 for (i = asynccnt; i--; )
1158 if (asyncs [i]->sent) 1504 if (asyncs [i]->sent)
1159 { 1505 {
1160 asyncs [i]->sent = 0; 1506 asyncs [i]->sent = 0;
… …
1164#endif 1510#endif
1165} 1511}
1166 1512
1167/*****************************************************************************/ 1513/*****************************************************************************/
1168 1514
1515void
1516ev_feed_signal (int signum)
1517{
1518#if EV_MULTIPLICITY
1519 EV_P = signals [signum - 1].loop;
1520
1521 if (!EV_A)
1522 return;
1523#endif
1524
1525 if (!ev_active (&pipe_w))
1526 return;
1527
1528 signals [signum - 1].pending = 1;
1529 evpipe_write (EV_A_ &sig_pending);
1530}
1531
1169static void 1532static void
1170ev_sighandler (int signum) 1533ev_sighandler (int signum)
1171{ 1534{
1172#if EV_MULTIPLICITY
1173 struct ev_loop *loop = &default_loop_struct;
1174#endif
1175
1176#if _WIN32 1535#ifdef _WIN32
1177 signal (signum, ev_sighandler); 1536 signal (signum, ev_sighandler);
1178#endif 1537#endif
1179 1538
1180 signals [signum - 1].gotsig = 1; 1539 ev_feed_signal (signum);
1181 evpipe_write (EV_A_ &gotsig);
1182} 1540}
1183 1541
1184void noinline 1542void noinline
1185ev_feed_signal_event (EV_P_ int signum) 1543ev_feed_signal_event (EV_P_ int signum)
1186{ 1544{
1187 WL w; 1545 WL w;
1188 1546
1547 if (expect_false (signum <= 0 || signum > EV_NSIG))
1548 return;
1549
1550 --signum;
1551
1189#if EV_MULTIPLICITY 1552#if EV_MULTIPLICITY
1190 assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); 1553 /* it is permissible to try to feed a signal to the wrong loop */
1191#endif 1554 /* or, likely more useful, feeding a signal nobody is waiting for */
1192 1555
1193 --signum; 1556 if (expect_false (signals [signum].loop != EV_A))
1194
1195 if (signum < 0 || signum >= signalmax)
1196 return; 1557 return;
1558#endif
1197 1559
1198 signals [signum].gotsig = 0; 1560 signals [signum].pending = 0;
1199 1561
1200 for (w = signals [signum].head; w; w = w->next) 1562 for (w = signals [signum].head; w; w = w->next)
1201 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 1563 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1202} 1564}
1203 1565
1566#if EV_USE_SIGNALFD
1567static void
1568sigfdcb (EV_P_ ev_io *iow, int revents)
1569{
1570 struct signalfd_siginfo si[2], *sip; /* these structs are big */
1571
1572 for (;;)
1573 {
1574 ssize_t res = read (sigfd, si, sizeof (si));
1575
1576 /* not ISO-C, as res might be -1, but works with SuS */
1577 for (sip = si; (char *)sip < (char *)si + res; ++sip)
1578 ev_feed_signal_event (EV_A_ sip->ssi_signo);
1579
1580 if (res < (ssize_t)sizeof (si))
1581 break;
1582 }
1583}
1584#endif
1585
1586#endif
1587
1204/*****************************************************************************/ 1588/*****************************************************************************/
1205 1589
1590#if EV_CHILD_ENABLE
1206static WL childs [EV_PID_HASHSIZE]; 1591static WL childs [EV_PID_HASHSIZE];
1207
1208#ifndef _WIN32
1209 1592
1210static ev_signal childev; 1593static ev_signal childev;
1211 1594
1212#ifndef WIFCONTINUED 1595#ifndef WIFCONTINUED
1213# define WIFCONTINUED(status) 0 1596# define WIFCONTINUED(status) 0
… …
1218child_reap (EV_P_ int chain, int pid, int status) 1601child_reap (EV_P_ int chain, int pid, int status)
1219{ 1602{
1220 ev_child *w; 1603 ev_child *w;
1221 int traced = WIFSTOPPED (status) || WIFCONTINUED (status); 1604 int traced = WIFSTOPPED (status) || WIFCONTINUED (status);
1222 1605
1223 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 1606 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1224 { 1607 {
1225 if ((w->pid == pid || !w->pid) 1608 if ((w->pid == pid || !w->pid)
1226 && (!traced || (w->flags & 1))) 1609 && (!traced || (w->flags & 1)))
1227 { 1610 {
1228 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ 1611 ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */
… …
1253 /* make sure we are called again until all children have been reaped */ 1636 /* make sure we are called again until all children have been reaped */
1254 /* we need to do it this way so that the callback gets called before we continue */ 1637 /* we need to do it this way so that the callback gets called before we continue */
1255 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); 1638 ev_feed_event (EV_A_ (W)sw, EV_SIGNAL);
1256 1639
1257 child_reap (EV_A_ pid, pid, status); 1640 child_reap (EV_A_ pid, pid, status);
1258 if (EV_PID_HASHSIZE > 1) 1641 if ((EV_PID_HASHSIZE) > 1)
1259 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ 1642 child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */
1260} 1643}
1261 1644
1262#endif 1645#endif
1263 1646
1264/*****************************************************************************/ 1647/*****************************************************************************/
1265 1648
1649#if EV_USE_IOCP
1650# include "ev_iocp.c"
1651#endif
1266#if EV_USE_PORT 1652#if EV_USE_PORT
1267# include "ev_port.c" 1653# include "ev_port.c"
1268#endif 1654#endif
1269#if EV_USE_KQUEUE 1655#if EV_USE_KQUEUE
1270# include "ev_kqueue.c" 1656# include "ev_kqueue.c"
… …
1277#endif 1663#endif
1278#if EV_USE_SELECT 1664#if EV_USE_SELECT
1279# include "ev_select.c" 1665# include "ev_select.c"
1280#endif 1666#endif
1281 1667
1282int 1668int ecb_cold
1283ev_version_major (void) 1669ev_version_major (void)
1284{ 1670{
1285 return EV_VERSION_MAJOR; 1671 return EV_VERSION_MAJOR;
1286} 1672}
1287 1673
1288int 1674int ecb_cold
1289ev_version_minor (void) 1675ev_version_minor (void)
1290{ 1676{
1291 return EV_VERSION_MINOR; 1677 return EV_VERSION_MINOR;
1292} 1678}
1293 1679
1294/* return true if we are running with elevated privileges and should ignore env variables */ 1680/* return true if we are running with elevated privileges and should ignore env variables */
1295int inline_size 1681int inline_size ecb_cold
1296enable_secure (void) 1682enable_secure (void)
1297{ 1683{
1298#ifdef _WIN32 1684#ifdef _WIN32
1299 return 0; 1685 return 0;
1300#else 1686#else
1301 return getuid () != geteuid () 1687 return getuid () != geteuid ()
1302 || getgid () != getegid (); 1688 || getgid () != getegid ();
1303#endif 1689#endif
1304} 1690}
1305 1691
1306unsigned int 1692unsigned int ecb_cold
1307ev_supported_backends (void) 1693ev_supported_backends (void)
1308{ 1694{
1309 unsigned int flags = 0; 1695 unsigned int flags = 0;
1310 1696
1311 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 1697 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
… …
1315 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 1701 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1316 1702
1317 return flags; 1703 return flags;
1318} 1704}
1319 1705
1320unsigned int 1706unsigned int ecb_cold
1321ev_recommended_backends (void) 1707ev_recommended_backends (void)
1322{ 1708{
1323 unsigned int flags = ev_supported_backends (); 1709 unsigned int flags = ev_supported_backends ();
1324 1710
1325#ifndef __NetBSD__ 1711#ifndef __NetBSD__
… …
1330#ifdef __APPLE__ 1716#ifdef __APPLE__
1331 /* only select works correctly on that "unix-certified" platform */ 1717 /* only select works correctly on that "unix-certified" platform */
1332 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 1718 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1333 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 1719 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1334#endif 1720#endif
1721#ifdef __FreeBSD__
1722 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
1723#endif
1335 1724
1336 return flags; 1725 return flags;
1337} 1726}
1338 1727
1339unsigned int 1728unsigned int ecb_cold
1340ev_embeddable_backends (void) 1729ev_embeddable_backends (void)
1341{ 1730{
1342 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 1731 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1343 1732
1344 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 1733 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1345 /* please fix it and tell me how to detect the fix */ 1734 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
1346 flags &= ~EVBACKEND_EPOLL; 1735 flags &= ~EVBACKEND_EPOLL;
1347 1736
1348 return flags; 1737 return flags;
1349} 1738}
1350 1739
1351unsigned int 1740unsigned int
1352ev_backend (EV_P) 1741ev_backend (EV_P)
1353{ 1742{
1354 return backend; 1743 return backend;
1355} 1744}
1356 1745
1746#if EV_FEATURE_API
1357unsigned int 1747unsigned int
1358ev_loop_count (EV_P) 1748ev_iteration (EV_P)
1359{ 1749{
1360 return loop_count; 1750 return loop_count;
1751}
1752
1753unsigned int
1754ev_depth (EV_P)
1755{
1756 return loop_depth;
1361} 1757}
1362 1758
1363void 1759void
1364ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 1760ev_set_io_collect_interval (EV_P_ ev_tstamp interval)
1365{ 1761{
… …
1370ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 1766ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval)
1371{ 1767{
1372 timeout_blocktime = interval; 1768 timeout_blocktime = interval;
1373} 1769}
1374 1770
1771void
1772ev_set_userdata (EV_P_ void *data)
1773{
1774 userdata = data;
1775}
1776
1777void *
1778ev_userdata (EV_P)
1779{
1780 return userdata;
1781}
1782
1783void
1784ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
1785{
1786 invoke_cb = invoke_pending_cb;
1787}
1788
1789void
1790ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
1791{
1792 release_cb = release;
1793 acquire_cb = acquire;
1794}
1795#endif
1796
1375/* initialise a loop structure, must be zero-initialised */ 1797/* initialise a loop structure, must be zero-initialised */
1376static void noinline 1798static void noinline ecb_cold
1377loop_init (EV_P_ unsigned int flags) 1799loop_init (EV_P_ unsigned int flags)
1378{ 1800{
1379 if (!backend) 1801 if (!backend)
1380 { 1802 {
1803 origflags = flags;
1804
1381#if EV_USE_REALTIME 1805#if EV_USE_REALTIME
1382 if (!have_realtime) 1806 if (!have_realtime)
1383 { 1807 {
1384 struct timespec ts; 1808 struct timespec ts;
1385 1809
… …
1396 if (!clock_gettime (CLOCK_MONOTONIC, &ts)) 1820 if (!clock_gettime (CLOCK_MONOTONIC, &ts))
1397 have_monotonic = 1; 1821 have_monotonic = 1;
1398 } 1822 }
1399#endif 1823#endif
1400 1824
1401 ev_rt_now = ev_time ();
1402 mn_now = get_clock ();
1403 now_floor = mn_now;
1404 rtmn_diff = ev_rt_now - mn_now;
1405
1406 io_blocktime = 0.;
1407 timeout_blocktime = 0.;
1408 backend = 0;
1409 backend_fd = -1;
1410 gotasync = 0;
1411#if EV_USE_INOTIFY
1412 fs_fd = -2;
1413#endif
1414
1415 /* pid check not overridable via env */ 1825 /* pid check not overridable via env */
1416#ifndef _WIN32 1826#ifndef _WIN32
1417 if (flags & EVFLAG_FORKCHECK) 1827 if (flags & EVFLAG_FORKCHECK)
1418 curpid = getpid (); 1828 curpid = getpid ();
1419#endif 1829#endif
… …
1421 if (!(flags & EVFLAG_NOENV) 1831 if (!(flags & EVFLAG_NOENV)
1422 && !enable_secure () 1832 && !enable_secure ()
1423 && getenv ("LIBEV_FLAGS")) 1833 && getenv ("LIBEV_FLAGS"))
1424 flags = atoi (getenv ("LIBEV_FLAGS")); 1834 flags = atoi (getenv ("LIBEV_FLAGS"));
1425 1835
1426 if (!(flags & 0x0000ffffU)) 1836 ev_rt_now = ev_time ();
1837 mn_now = get_clock ();
1838 now_floor = mn_now;
1839 rtmn_diff = ev_rt_now - mn_now;
1840#if EV_FEATURE_API
1841 invoke_cb = ev_invoke_pending;
1842#endif
1843
1844 io_blocktime = 0.;
1845 timeout_blocktime = 0.;
1846 backend = 0;
1847 backend_fd = -1;
1848 sig_pending = 0;
1849#if EV_ASYNC_ENABLE
1850 async_pending = 0;
1851#endif
1852 pipe_write_skipped = 0;
1853 pipe_write_wanted = 0;
1854#if EV_USE_INOTIFY
1855 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1856#endif
1857#if EV_USE_SIGNALFD
1858 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1859#endif
1860
1861 if (!(flags & EVBACKEND_MASK))
1427 flags |= ev_recommended_backends (); 1862 flags |= ev_recommended_backends ();
1428 1863
1864#if EV_USE_IOCP
1865 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
1866#endif
1429#if EV_USE_PORT 1867#if EV_USE_PORT
1430 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 1868 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1431#endif 1869#endif
1432#if EV_USE_KQUEUE 1870#if EV_USE_KQUEUE
1433 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 1871 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1442 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 1880 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags);
1443#endif 1881#endif
1444 1882
1445 ev_prepare_init (&pending_w, pendingcb); 1883 ev_prepare_init (&pending_w, pendingcb);
1446 1884
1885#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1447 ev_init (&pipe_w, pipecb); 1886 ev_init (&pipe_w, pipecb);
1448 ev_set_priority (&pipe_w, EV_MAXPRI); 1887 ev_set_priority (&pipe_w, EV_MAXPRI);
1888#endif
1449 } 1889 }
1450} 1890}
1451 1891
1452/* free up a loop structure */ 1892/* free up a loop structure */
1453static void noinline 1893void ecb_cold
1454loop_destroy (EV_P) 1894ev_loop_destroy (EV_P)
1455{ 1895{
1456 int i; 1896 int i;
1457 1897
1898#if EV_MULTIPLICITY
1899 /* mimic free (0) */
1900 if (!EV_A)
1901 return;
1902#endif
1903
1904#if EV_CLEANUP_ENABLE
1905 /* queue cleanup watchers (and execute them) */
1906 if (expect_false (cleanupcnt))
1907 {
1908 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
1909 EV_INVOKE_PENDING;
1910 }
1911#endif
1912
1913#if EV_CHILD_ENABLE
1914 if (ev_is_active (&childev))
1915 {
1916 ev_ref (EV_A); /* child watcher */
1917 ev_signal_stop (EV_A_ &childev);
1918 }
1919#endif
1920
1458 if (ev_is_active (&pipe_w)) 1921 if (ev_is_active (&pipe_w))
1459 { 1922 {
1460 ev_ref (EV_A); /* signal watcher */ 1923 /*ev_ref (EV_A);*/
1461 ev_io_stop (EV_A_ &pipe_w); 1924 /*ev_io_stop (EV_A_ &pipe_w);*/
1462 1925
1463#if EV_USE_EVENTFD 1926#if EV_USE_EVENTFD
1464 if (evfd >= 0) 1927 if (evfd >= 0)
1465 close (evfd); 1928 close (evfd);
1466#endif 1929#endif
1467 1930
1468 if (evpipe [0] >= 0) 1931 if (evpipe [0] >= 0)
1469 { 1932 {
1470 close (evpipe [0]); 1933 EV_WIN32_CLOSE_FD (evpipe [0]);
1471 close (evpipe [1]); 1934 EV_WIN32_CLOSE_FD (evpipe [1]);
1472 } 1935 }
1473 } 1936 }
1937
1938#if EV_USE_SIGNALFD
1939 if (ev_is_active (&sigfd_w))
1940 close (sigfd);
1941#endif
1474 1942
1475#if EV_USE_INOTIFY 1943#if EV_USE_INOTIFY
1476 if (fs_fd >= 0) 1944 if (fs_fd >= 0)
1477 close (fs_fd); 1945 close (fs_fd);
1478#endif 1946#endif
1479 1947
1480 if (backend_fd >= 0) 1948 if (backend_fd >= 0)
1481 close (backend_fd); 1949 close (backend_fd);
1482 1950
1951#if EV_USE_IOCP
1952 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
1953#endif
1483#if EV_USE_PORT 1954#if EV_USE_PORT
1484 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 1955 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1485#endif 1956#endif
1486#if EV_USE_KQUEUE 1957#if EV_USE_KQUEUE
1487 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 1958 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1502#if EV_IDLE_ENABLE 1973#if EV_IDLE_ENABLE
1503 array_free (idle, [i]); 1974 array_free (idle, [i]);
1504#endif 1975#endif
1505 } 1976 }
1506 1977
1507 ev_free (anfds); anfdmax = 0; 1978 ev_free (anfds); anfds = 0; anfdmax = 0;
1508 1979
1509 /* have to use the microsoft-never-gets-it-right macro */ 1980 /* have to use the microsoft-never-gets-it-right macro */
1510 array_free (rfeed, EMPTY); 1981 array_free (rfeed, EMPTY);
1511 array_free (fdchange, EMPTY); 1982 array_free (fdchange, EMPTY);
1512 array_free (timer, EMPTY); 1983 array_free (timer, EMPTY);
… …
1514 array_free (periodic, EMPTY); 1985 array_free (periodic, EMPTY);
1515#endif 1986#endif
1516#if EV_FORK_ENABLE 1987#if EV_FORK_ENABLE
1517 array_free (fork, EMPTY); 1988 array_free (fork, EMPTY);
1518#endif 1989#endif
1990#if EV_CLEANUP_ENABLE
1991 array_free (cleanup, EMPTY);
1992#endif
1519 array_free (prepare, EMPTY); 1993 array_free (prepare, EMPTY);
1520 array_free (check, EMPTY); 1994 array_free (check, EMPTY);
1521#if EV_ASYNC_ENABLE 1995#if EV_ASYNC_ENABLE
1522 array_free (async, EMPTY); 1996 array_free (async, EMPTY);
1523#endif 1997#endif
1524 1998
1525 backend = 0; 1999 backend = 0;
2000
2001#if EV_MULTIPLICITY
2002 if (ev_is_default_loop (EV_A))
2003#endif
2004 ev_default_loop_ptr = 0;
2005#if EV_MULTIPLICITY
2006 else
2007 ev_free (EV_A);
2008#endif
1526} 2009}
1527 2010
1528#if EV_USE_INOTIFY 2011#if EV_USE_INOTIFY
1529inline_size void infy_fork (EV_P); 2012inline_size void infy_fork (EV_P);
1530#endif 2013#endif
… …
1545 infy_fork (EV_A); 2028 infy_fork (EV_A);
1546#endif 2029#endif
1547 2030
1548 if (ev_is_active (&pipe_w)) 2031 if (ev_is_active (&pipe_w))
1549 { 2032 {
1550 /* this "locks" the handlers against writing to the pipe */ 2033 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1551 /* while we modify the fd vars */
1552 gotsig = 1;
1553#if EV_ASYNC_ENABLE
1554 gotasync = 1;
1555#endif
1556 2034
1557 ev_ref (EV_A); 2035 ev_ref (EV_A);
1558 ev_io_stop (EV_A_ &pipe_w); 2036 ev_io_stop (EV_A_ &pipe_w);
1559 2037
1560#if EV_USE_EVENTFD 2038#if EV_USE_EVENTFD
… …
1562 close (evfd); 2040 close (evfd);
1563#endif 2041#endif
1564 2042
1565 if (evpipe [0] >= 0) 2043 if (evpipe [0] >= 0)
1566 { 2044 {
1567 close (evpipe [0]); 2045 EV_WIN32_CLOSE_FD (evpipe [0]);
1568 close (evpipe [1]); 2046 EV_WIN32_CLOSE_FD (evpipe [1]);
1569 } 2047 }
1570 2048
2049#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1571 evpipe_init (EV_A); 2050 evpipe_init (EV_A);
1572 /* now iterate over everything, in case we missed something */ 2051 /* now iterate over everything, in case we missed something */
1573 pipecb (EV_A_ &pipe_w, EV_READ); 2052 pipecb (EV_A_ &pipe_w, EV_READ);
2053#endif
1574 } 2054 }
1575 2055
1576 postfork = 0; 2056 postfork = 0;
1577} 2057}
1578 2058
1579#if EV_MULTIPLICITY 2059#if EV_MULTIPLICITY
1580 2060
1581struct ev_loop * 2061struct ev_loop * ecb_cold
1582ev_loop_new (unsigned int flags) 2062ev_loop_new (unsigned int flags)
1583{ 2063{
1584 struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2064 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1585 2065
1586 memset (loop, 0, sizeof (struct ev_loop)); 2066 memset (EV_A, 0, sizeof (struct ev_loop));
1587
1588 loop_init (EV_A_ flags); 2067 loop_init (EV_A_ flags);
1589 2068
1590 if (ev_backend (EV_A)) 2069 if (ev_backend (EV_A))
1591 return loop; 2070 return EV_A;
1592 2071
2072 ev_free (EV_A);
1593 return 0; 2073 return 0;
1594} 2074}
1595 2075
1596void 2076#endif /* multiplicity */
1597ev_loop_destroy (EV_P)
1598{
1599 loop_destroy (EV_A);
1600 ev_free (loop);
1601}
1602
1603void
1604ev_loop_fork (EV_P)
1605{
1606 postfork = 1; /* must be in line with ev_default_fork */
1607}
1608 2077
1609#if EV_VERIFY 2078#if EV_VERIFY
1610static void noinline 2079static void noinline ecb_cold
1611verify_watcher (EV_P_ W w) 2080verify_watcher (EV_P_ W w)
1612{ 2081{
1613 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2082 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1614 2083
1615 if (w->pending) 2084 if (w->pending)
1616 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2085 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1617} 2086}
1618 2087
1619static void noinline 2088static void noinline ecb_cold
1620verify_heap (EV_P_ ANHE *heap, int N) 2089verify_heap (EV_P_ ANHE *heap, int N)
1621{ 2090{
1622 int i; 2091 int i;
1623 2092
1624 for (i = HEAP0; i < N + HEAP0; ++i) 2093 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1629 2098
1630 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2099 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1631 } 2100 }
1632} 2101}
1633 2102
1634static void noinline 2103static void noinline ecb_cold
1635array_verify (EV_P_ W *ws, int cnt) 2104array_verify (EV_P_ W *ws, int cnt)
1636{ 2105{
1637 while (cnt--) 2106 while (cnt--)
1638 { 2107 {
1639 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2108 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
1640 verify_watcher (EV_A_ ws [cnt]); 2109 verify_watcher (EV_A_ ws [cnt]);
1641 } 2110 }
1642} 2111}
1643#endif 2112#endif
1644 2113
1645void 2114#if EV_FEATURE_API
2115void ecb_cold
1646ev_loop_verify (EV_P) 2116ev_verify (EV_P)
1647{ 2117{
1648#if EV_VERIFY 2118#if EV_VERIFY
1649 int i; 2119 int i;
1650 WL w; 2120 WL w;
1651 2121
… …
1685#if EV_FORK_ENABLE 2155#if EV_FORK_ENABLE
1686 assert (forkmax >= forkcnt); 2156 assert (forkmax >= forkcnt);
1687 array_verify (EV_A_ (W *)forks, forkcnt); 2157 array_verify (EV_A_ (W *)forks, forkcnt);
1688#endif 2158#endif
1689 2159
2160#if EV_CLEANUP_ENABLE
2161 assert (cleanupmax >= cleanupcnt);
2162 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2163#endif
2164
1690#if EV_ASYNC_ENABLE 2165#if EV_ASYNC_ENABLE
1691 assert (asyncmax >= asynccnt); 2166 assert (asyncmax >= asynccnt);
1692 array_verify (EV_A_ (W *)asyncs, asynccnt); 2167 array_verify (EV_A_ (W *)asyncs, asynccnt);
1693#endif 2168#endif
1694 2169
2170#if EV_PREPARE_ENABLE
1695 assert (preparemax >= preparecnt); 2171 assert (preparemax >= preparecnt);
1696 array_verify (EV_A_ (W *)prepares, preparecnt); 2172 array_verify (EV_A_ (W *)prepares, preparecnt);
2173#endif
1697 2174
2175#if EV_CHECK_ENABLE
1698 assert (checkmax >= checkcnt); 2176 assert (checkmax >= checkcnt);
1699 array_verify (EV_A_ (W *)checks, checkcnt); 2177 array_verify (EV_A_ (W *)checks, checkcnt);
2178#endif
1700 2179
1701# if 0 2180# if 0
2181#if EV_CHILD_ENABLE
1702 for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) 2182 for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next)
1703 for (signum = signalmax; signum--; ) if (signals [signum].gotsig) 2183 for (signum = EV_NSIG; signum--; ) if (signals [signum].pending)
2184#endif
1704# endif 2185# endif
1705#endif 2186#endif
1706} 2187}
1707 2188#endif
1708#endif /* multiplicity */
1709 2189
1710#if EV_MULTIPLICITY 2190#if EV_MULTIPLICITY
1711struct ev_loop * 2191struct ev_loop * ecb_cold
1712ev_default_loop_init (unsigned int flags)
1713#else 2192#else
1714int 2193int
2194#endif
1715ev_default_loop (unsigned int flags) 2195ev_default_loop (unsigned int flags)
1716#endif
1717{ 2196{
1718 if (!ev_default_loop_ptr) 2197 if (!ev_default_loop_ptr)
1719 { 2198 {
1720#if EV_MULTIPLICITY 2199#if EV_MULTIPLICITY
1721 struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; 2200 EV_P = ev_default_loop_ptr = &default_loop_struct;
1722#else 2201#else
1723 ev_default_loop_ptr = 1; 2202 ev_default_loop_ptr = 1;
1724#endif 2203#endif
1725 2204
1726 loop_init (EV_A_ flags); 2205 loop_init (EV_A_ flags);
1727 2206
1728 if (ev_backend (EV_A)) 2207 if (ev_backend (EV_A))
1729 { 2208 {
1730#ifndef _WIN32 2209#if EV_CHILD_ENABLE
1731 ev_signal_init (&childev, childcb, SIGCHLD); 2210 ev_signal_init (&childev, childcb, SIGCHLD);
1732 ev_set_priority (&childev, EV_MAXPRI); 2211 ev_set_priority (&childev, EV_MAXPRI);
1733 ev_signal_start (EV_A_ &childev); 2212 ev_signal_start (EV_A_ &childev);
1734 ev_unref (EV_A); /* child watcher should not keep loop alive */ 2213 ev_unref (EV_A); /* child watcher should not keep loop alive */
1735#endif 2214#endif
… …
1740 2219
1741 return ev_default_loop_ptr; 2220 return ev_default_loop_ptr;
1742} 2221}
1743 2222
1744void 2223void
1745ev_default_destroy (void) 2224ev_loop_fork (EV_P)
1746{ 2225{
1747#if EV_MULTIPLICITY
1748 struct ev_loop *loop = ev_default_loop_ptr;
1749#endif
1750
1751 ev_default_loop_ptr = 0;
1752
1753#ifndef _WIN32
1754 ev_ref (EV_A); /* child watcher */
1755 ev_signal_stop (EV_A_ &childev);
1756#endif
1757
1758 loop_destroy (EV_A);
1759}
1760
1761void
1762ev_default_fork (void)
1763{
1764#if EV_MULTIPLICITY
1765 struct ev_loop *loop = ev_default_loop_ptr;
1766#endif
1767
1768 postfork = 1; /* must be in line with ev_loop_fork */ 2226 postfork = 1; /* must be in line with ev_default_fork */
1769} 2227}
1770 2228
1771/*****************************************************************************/ 2229/*****************************************************************************/
1772 2230
1773void 2231void
1774ev_invoke (EV_P_ void *w, int revents) 2232ev_invoke (EV_P_ void *w, int revents)
1775{ 2233{
1776 EV_CB_INVOKE ((W)w, revents); 2234 EV_CB_INVOKE ((W)w, revents);
1777} 2235}
1778 2236
1779inline_speed void 2237unsigned int
1780call_pending (EV_P) 2238ev_pending_count (EV_P)
2239{
2240 int pri;
2241 unsigned int count = 0;
2242
2243 for (pri = NUMPRI; pri--; )
2244 count += pendingcnt [pri];
2245
2246 return count;
2247}
2248
2249void noinline
2250ev_invoke_pending (EV_P)
1781{ 2251{
1782 int pri; 2252 int pri;
1783 2253
1784 for (pri = NUMPRI; pri--; ) 2254 for (pri = NUMPRI; pri--; )
1785 while (pendingcnt [pri]) 2255 while (pendingcnt [pri])
1786 { 2256 {
1787 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2257 ANPENDING *p = pendings [pri] + --pendingcnt [pri];
1788
1789 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
1790 /* ^ this is no longer true, as pending_w could be here */
1791 2258
1792 p->w->pending = 0; 2259 p->w->pending = 0;
1793 EV_CB_INVOKE (p->w, p->events); 2260 EV_CB_INVOKE (p->w, p->events);
1794 EV_FREQUENT_CHECK; 2261 EV_FREQUENT_CHECK;
1795 } 2262 }
… …
1852 EV_FREQUENT_CHECK; 2319 EV_FREQUENT_CHECK;
1853 feed_reverse (EV_A_ (W)w); 2320 feed_reverse (EV_A_ (W)w);
1854 } 2321 }
1855 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2322 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
1856 2323
1857 feed_reverse_done (EV_A_ EV_TIMEOUT); 2324 feed_reverse_done (EV_A_ EV_TIMER);
1858 } 2325 }
1859} 2326}
1860 2327
1861#if EV_PERIODIC_ENABLE 2328#if EV_PERIODIC_ENABLE
2329
2330static void noinline
2331periodic_recalc (EV_P_ ev_periodic *w)
2332{
2333 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2334 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2335
2336 /* the above almost always errs on the low side */
2337 while (at <= ev_rt_now)
2338 {
2339 ev_tstamp nat = at + w->interval;
2340
2341 /* when resolution fails us, we use ev_rt_now */
2342 if (expect_false (nat == at))
2343 {
2344 at = ev_rt_now;
2345 break;
2346 }
2347
2348 at = nat;
2349 }
2350
2351 ev_at (w) = at;
2352}
2353
1862/* make periodics pending */ 2354/* make periodics pending */
1863inline_size void 2355inline_size void
1864periodics_reify (EV_P) 2356periodics_reify (EV_P)
1865{ 2357{
1866 EV_FREQUENT_CHECK; 2358 EV_FREQUENT_CHECK;
… …
1885 ANHE_at_cache (periodics [HEAP0]); 2377 ANHE_at_cache (periodics [HEAP0]);
1886 downheap (periodics, periodiccnt, HEAP0); 2378 downheap (periodics, periodiccnt, HEAP0);
1887 } 2379 }
1888 else if (w->interval) 2380 else if (w->interval)
1889 { 2381 {
1890 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2382 periodic_recalc (EV_A_ w);
1891 /* if next trigger time is not sufficiently in the future, put it there */
1892 /* this might happen because of floating point inexactness */
1893 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
1894 {
1895 ev_at (w) += w->interval;
1896
1897 /* if interval is unreasonably low we might still have a time in the past */
1898 /* so correct this. this will make the periodic very inexact, but the user */
1899 /* has effectively asked to get triggered more often than possible */
1900 if (ev_at (w) < ev_rt_now)
1901 ev_at (w) = ev_rt_now;
1902 }
1903
1904 ANHE_at_cache (periodics [HEAP0]); 2383 ANHE_at_cache (periodics [HEAP0]);
1905 downheap (periodics, periodiccnt, HEAP0); 2384 downheap (periodics, periodiccnt, HEAP0);
1906 } 2385 }
1907 else 2386 else
1908 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2387 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
1915 feed_reverse_done (EV_A_ EV_PERIODIC); 2394 feed_reverse_done (EV_A_ EV_PERIODIC);
1916 } 2395 }
1917} 2396}
1918 2397
1919/* simply recalculate all periodics */ 2398/* simply recalculate all periodics */
1920/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2399/* TODO: maybe ensure that at least one event happens when jumping forward? */
1921static void noinline 2400static void noinline ecb_cold
1922periodics_reschedule (EV_P) 2401periodics_reschedule (EV_P)
1923{ 2402{
1924 int i; 2403 int i;
1925 2404
1926 /* adjust periodics after time jump */ 2405 /* adjust periodics after time jump */
… …
1929 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2408 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
1930 2409
1931 if (w->reschedule_cb) 2410 if (w->reschedule_cb)
1932 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2411 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
1933 else if (w->interval) 2412 else if (w->interval)
1934 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2413 periodic_recalc (EV_A_ w);
1935 2414
1936 ANHE_at_cache (periodics [i]); 2415 ANHE_at_cache (periodics [i]);
1937 } 2416 }
1938 2417
1939 reheap (periodics, periodiccnt); 2418 reheap (periodics, periodiccnt);
1940} 2419}
1941#endif 2420#endif
1942 2421
1943/* adjust all timers by a given offset */ 2422/* adjust all timers by a given offset */
1944static void noinline 2423static void noinline ecb_cold
1945timers_reschedule (EV_P_ ev_tstamp adjust) 2424timers_reschedule (EV_P_ ev_tstamp adjust)
1946{ 2425{
1947 int i; 2426 int i;
1948 2427
1949 for (i = 0; i < timercnt; ++i) 2428 for (i = 0; i < timercnt; ++i)
… …
1953 ANHE_at_cache (*he); 2432 ANHE_at_cache (*he);
1954 } 2433 }
1955} 2434}
1956 2435
1957/* fetch new monotonic and realtime times from the kernel */ 2436/* fetch new monotonic and realtime times from the kernel */
1958/* also detetc if there was a timejump, and act accordingly */ 2437/* also detect if there was a timejump, and act accordingly */
1959inline_speed void 2438inline_speed void
1960time_update (EV_P_ ev_tstamp max_block) 2439time_update (EV_P_ ev_tstamp max_block)
1961{ 2440{
1962#if EV_USE_MONOTONIC 2441#if EV_USE_MONOTONIC
1963 if (expect_true (have_monotonic)) 2442 if (expect_true (have_monotonic))
… …
1986 * doesn't hurt either as we only do this on time-jumps or 2465 * doesn't hurt either as we only do this on time-jumps or
1987 * in the unlikely event of having been preempted here. 2466 * in the unlikely event of having been preempted here.
1988 */ 2467 */
1989 for (i = 4; --i; ) 2468 for (i = 4; --i; )
1990 { 2469 {
2470 ev_tstamp diff;
1991 rtmn_diff = ev_rt_now - mn_now; 2471 rtmn_diff = ev_rt_now - mn_now;
1992 2472
2473 diff = odiff - rtmn_diff;
2474
1993 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2475 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
1994 return; /* all is well */ 2476 return; /* all is well */
1995 2477
1996 ev_rt_now = ev_time (); 2478 ev_rt_now = ev_time ();
1997 mn_now = get_clock (); 2479 mn_now = get_clock ();
1998 now_floor = mn_now; 2480 now_floor = mn_now;
… …
2020 2502
2021 mn_now = ev_rt_now; 2503 mn_now = ev_rt_now;
2022 } 2504 }
2023} 2505}
2024 2506
2025static int loop_done;
2026
2027void 2507void
2028ev_loop (EV_P_ int flags) 2508ev_run (EV_P_ int flags)
2029{ 2509{
2510#if EV_FEATURE_API
2511 ++loop_depth;
2512#endif
2513
2514 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2515
2030 loop_done = EVUNLOOP_CANCEL; 2516 loop_done = EVBREAK_CANCEL;
2031 2517
2032 call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ 2518 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2033 2519
2034 do 2520 do
2035 { 2521 {
2036#if EV_VERIFY >= 2 2522#if EV_VERIFY >= 2
2037 ev_loop_verify (EV_A); 2523 ev_verify (EV_A);
2038#endif 2524#endif
2039 2525
2040#ifndef _WIN32 2526#ifndef _WIN32
2041 if (expect_false (curpid)) /* penalise the forking check even more */ 2527 if (expect_false (curpid)) /* penalise the forking check even more */
2042 if (expect_false (getpid () != curpid)) 2528 if (expect_false (getpid () != curpid))
… …
2050 /* we might have forked, so queue fork handlers */ 2536 /* we might have forked, so queue fork handlers */
2051 if (expect_false (postfork)) 2537 if (expect_false (postfork))
2052 if (forkcnt) 2538 if (forkcnt)
2053 { 2539 {
2054 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 2540 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
2055 call_pending (EV_A); 2541 EV_INVOKE_PENDING;
2056 } 2542 }
2057#endif 2543#endif
2058 2544
2545#if EV_PREPARE_ENABLE
2059 /* queue prepare watchers (and execute them) */ 2546 /* queue prepare watchers (and execute them) */
2060 if (expect_false (preparecnt)) 2547 if (expect_false (preparecnt))
2061 { 2548 {
2062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 2549 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
2063 call_pending (EV_A); 2550 EV_INVOKE_PENDING;
2064 } 2551 }
2552#endif
2553
2554 if (expect_false (loop_done))
2555 break;
2065 2556
2066 /* we might have forked, so reify kernel state if necessary */ 2557 /* we might have forked, so reify kernel state if necessary */
2067 if (expect_false (postfork)) 2558 if (expect_false (postfork))
2068 loop_fork (EV_A); 2559 loop_fork (EV_A);
2069 2560
… …
2073 /* calculate blocking time */ 2564 /* calculate blocking time */
2074 { 2565 {
2075 ev_tstamp waittime = 0.; 2566 ev_tstamp waittime = 0.;
2076 ev_tstamp sleeptime = 0.; 2567 ev_tstamp sleeptime = 0.;
2077 2568
2569 /* remember old timestamp for io_blocktime calculation */
2570 ev_tstamp prev_mn_now = mn_now;
2571
2572 /* update time to cancel out callback processing overhead */
2573 time_update (EV_A_ 1e100);
2574
2575 /* from now on, we want a pipe-wake-up */
2576 pipe_write_wanted = 1;
2577
2078 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 2578 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2079 { 2579 {
2080 /* remember old timestamp for io_blocktime calculation */
2081 ev_tstamp prev_mn_now = mn_now;
2082
2083 /* update time to cancel out callback processing overhead */
2084 time_update (EV_A_ 1e100);
2085
2086 waittime = MAX_BLOCKTIME; 2580 waittime = MAX_BLOCKTIME;
2087 2581
2088 if (timercnt) 2582 if (timercnt)
2089 { 2583 {
2090 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 2584 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2091 if (waittime > to) waittime = to; 2585 if (waittime > to) waittime = to;
2092 } 2586 }
2093 2587
2094#if EV_PERIODIC_ENABLE 2588#if EV_PERIODIC_ENABLE
2095 if (periodiccnt) 2589 if (periodiccnt)
2096 { 2590 {
2097 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 2591 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2098 if (waittime > to) waittime = to; 2592 if (waittime > to) waittime = to;
2099 } 2593 }
2100#endif 2594#endif
2101 2595
2102 /* don't let timeouts decrease the waittime below timeout_blocktime */ 2596 /* don't let timeouts decrease the waittime below timeout_blocktime */
2103 if (expect_false (waittime < timeout_blocktime)) 2597 if (expect_false (waittime < timeout_blocktime))
2104 waittime = timeout_blocktime; 2598 waittime = timeout_blocktime;
2599
2600 /* at this point, we NEED to wait, so we have to ensure */
2601 /* to pass a minimum nonzero value to the backend */
2602 if (expect_false (waittime < backend_mintime))
2603 waittime = backend_mintime;
2105 2604
2106 /* extra check because io_blocktime is commonly 0 */ 2605 /* extra check because io_blocktime is commonly 0 */
2107 if (expect_false (io_blocktime)) 2606 if (expect_false (io_blocktime))
2108 { 2607 {
2109 sleeptime = io_blocktime - (mn_now - prev_mn_now); 2608 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2110 2609
2111 if (sleeptime > waittime - backend_fudge) 2610 if (sleeptime > waittime - backend_mintime)
2112 sleeptime = waittime - backend_fudge; 2611 sleeptime = waittime - backend_mintime;
2113 2612
2114 if (expect_true (sleeptime > 0.)) 2613 if (expect_true (sleeptime > 0.))
2115 { 2614 {
2116 ev_sleep (sleeptime); 2615 ev_sleep (sleeptime);
2117 waittime -= sleeptime; 2616 waittime -= sleeptime;
2118 } 2617 }
2119 } 2618 }
2120 } 2619 }
2121 2620
2621#if EV_FEATURE_API
2122 ++loop_count; 2622 ++loop_count;
2623#endif
2624 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2123 backend_poll (EV_A_ waittime); 2625 backend_poll (EV_A_ waittime);
2626 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2627
2628 pipe_write_wanted = 0;
2629
2630 if (pipe_write_skipped)
2631 {
2632 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2633 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2634 }
2635
2124 2636
2125 /* update ev_rt_now, do magic */ 2637 /* update ev_rt_now, do magic */
2126 time_update (EV_A_ waittime + sleeptime); 2638 time_update (EV_A_ waittime + sleeptime);
2127 } 2639 }
2128 2640
… …
2135#if EV_IDLE_ENABLE 2647#if EV_IDLE_ENABLE
2136 /* queue idle watchers unless other events are pending */ 2648 /* queue idle watchers unless other events are pending */
2137 idle_reify (EV_A); 2649 idle_reify (EV_A);
2138#endif 2650#endif
2139 2651
2652#if EV_CHECK_ENABLE
2140 /* queue check watchers, to be executed first */ 2653 /* queue check watchers, to be executed first */
2141 if (expect_false (checkcnt)) 2654 if (expect_false (checkcnt))
2142 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 2655 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
2656#endif
2143 2657
2144 call_pending (EV_A); 2658 EV_INVOKE_PENDING;
2145 } 2659 }
2146 while (expect_true ( 2660 while (expect_true (
2147 activecnt 2661 activecnt
2148 && !loop_done 2662 && !loop_done
2149 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 2663 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2150 )); 2664 ));
2151 2665
2152 if (loop_done == EVUNLOOP_ONE) 2666 if (loop_done == EVBREAK_ONE)
2153 loop_done = EVUNLOOP_CANCEL; 2667 loop_done = EVBREAK_CANCEL;
2668
2669#if EV_FEATURE_API
2670 --loop_depth;
2671#endif
2154} 2672}
2155 2673
2156void 2674void
2157ev_unloop (EV_P_ int how) 2675ev_break (EV_P_ int how)
2158{ 2676{
2159 loop_done = how; 2677 loop_done = how;
2160} 2678}
2161 2679
2162void 2680void
… …
2209inline_size void 2727inline_size void
2210wlist_del (WL *head, WL elem) 2728wlist_del (WL *head, WL elem)
2211{ 2729{
2212 while (*head) 2730 while (*head)
2213 { 2731 {
2214 if (*head == elem) 2732 if (expect_true (*head == elem))
2215 { 2733 {
2216 *head = elem->next; 2734 *head = elem->next;
2217 return; 2735 break;
2218 } 2736 }
2219 2737
2220 head = &(*head)->next; 2738 head = &(*head)->next;
2221 } 2739 }
2222} 2740}
… …
2250} 2768}
2251 2769
2252inline_size void 2770inline_size void
2253pri_adjust (EV_P_ W w) 2771pri_adjust (EV_P_ W w)
2254{ 2772{
2255 int pri = w->priority; 2773 int pri = ev_priority (w);
2256 pri = pri < EV_MINPRI ? EV_MINPRI : pri; 2774 pri = pri < EV_MINPRI ? EV_MINPRI : pri;
2257 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; 2775 pri = pri > EV_MAXPRI ? EV_MAXPRI : pri;
2258 w->priority = pri; 2776 ev_set_priority (w, pri);
2259} 2777}
2260 2778
2261inline_speed void 2779inline_speed void
2262ev_start (EV_P_ W w, int active) 2780ev_start (EV_P_ W w, int active)
2263{ 2781{
… …
2282 2800
2283 if (expect_false (ev_is_active (w))) 2801 if (expect_false (ev_is_active (w)))
2284 return; 2802 return;
2285 2803
2286 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 2804 assert (("libev: ev_io_start called with negative fd", fd >= 0));
2287 assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 2805 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
2288 2806
2289 EV_FREQUENT_CHECK; 2807 EV_FREQUENT_CHECK;
2290 2808
2291 ev_start (EV_A_ (W)w, 1); 2809 ev_start (EV_A_ (W)w, 1);
2292 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 2810 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2293 wlist_add (&anfds[fd].head, (WL)w); 2811 wlist_add (&anfds[fd].head, (WL)w);
2294 2812
2295 fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); 2813 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2296 w->events &= ~EV__IOFDSET; 2814 w->events &= ~EV__IOFDSET;
2297 2815
2298 EV_FREQUENT_CHECK; 2816 EV_FREQUENT_CHECK;
2299} 2817}
2300 2818
… …
2310 EV_FREQUENT_CHECK; 2828 EV_FREQUENT_CHECK;
2311 2829
2312 wlist_del (&anfds[w->fd].head, (WL)w); 2830 wlist_del (&anfds[w->fd].head, (WL)w);
2313 ev_stop (EV_A_ (W)w); 2831 ev_stop (EV_A_ (W)w);
2314 2832
2315 fd_change (EV_A_ w->fd, 1); 2833 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2316 2834
2317 EV_FREQUENT_CHECK; 2835 EV_FREQUENT_CHECK;
2318} 2836}
2319 2837
2320void noinline 2838void noinline
… …
2362 timers [active] = timers [timercnt + HEAP0]; 2880 timers [active] = timers [timercnt + HEAP0];
2363 adjustheap (timers, timercnt, active); 2881 adjustheap (timers, timercnt, active);
2364 } 2882 }
2365 } 2883 }
2366 2884
2367 EV_FREQUENT_CHECK;
2368
2369 ev_at (w) -= mn_now; 2885 ev_at (w) -= mn_now;
2370 2886
2371 ev_stop (EV_A_ (W)w); 2887 ev_stop (EV_A_ (W)w);
2888
2889 EV_FREQUENT_CHECK;
2372} 2890}
2373 2891
2374void noinline 2892void noinline
2375ev_timer_again (EV_P_ ev_timer *w) 2893ev_timer_again (EV_P_ ev_timer *w)
2376{ 2894{
… …
2394 } 2912 }
2395 2913
2396 EV_FREQUENT_CHECK; 2914 EV_FREQUENT_CHECK;
2397} 2915}
2398 2916
2917ev_tstamp
2918ev_timer_remaining (EV_P_ ev_timer *w)
2919{
2920 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2921}
2922
2399#if EV_PERIODIC_ENABLE 2923#if EV_PERIODIC_ENABLE
2400void noinline 2924void noinline
2401ev_periodic_start (EV_P_ ev_periodic *w) 2925ev_periodic_start (EV_P_ ev_periodic *w)
2402{ 2926{
2403 if (expect_false (ev_is_active (w))) 2927 if (expect_false (ev_is_active (w)))
… …
2406 if (w->reschedule_cb) 2930 if (w->reschedule_cb)
2407 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2931 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2408 else if (w->interval) 2932 else if (w->interval)
2409 { 2933 {
2410 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 2934 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2411 /* this formula differs from the one in periodic_reify because we do not always round up */ 2935 periodic_recalc (EV_A_ w);
2412 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2413 } 2936 }
2414 else 2937 else
2415 ev_at (w) = w->offset; 2938 ev_at (w) = w->offset;
2416 2939
2417 EV_FREQUENT_CHECK; 2940 EV_FREQUENT_CHECK;
… …
2449 periodics [active] = periodics [periodiccnt + HEAP0]; 2972 periodics [active] = periodics [periodiccnt + HEAP0];
2450 adjustheap (periodics, periodiccnt, active); 2973 adjustheap (periodics, periodiccnt, active);
2451 } 2974 }
2452 } 2975 }
2453 2976
2454 EV_FREQUENT_CHECK;
2455
2456 ev_stop (EV_A_ (W)w); 2977 ev_stop (EV_A_ (W)w);
2978
2979 EV_FREQUENT_CHECK;
2457} 2980}
2458 2981
2459void noinline 2982void noinline
2460ev_periodic_again (EV_P_ ev_periodic *w) 2983ev_periodic_again (EV_P_ ev_periodic *w)
2461{ 2984{
… …
2467 2990
2468#ifndef SA_RESTART 2991#ifndef SA_RESTART
2469# define SA_RESTART 0 2992# define SA_RESTART 0
2470#endif 2993#endif
2471 2994
2995#if EV_SIGNAL_ENABLE
2996
2472void noinline 2997void noinline
2473ev_signal_start (EV_P_ ev_signal *w) 2998ev_signal_start (EV_P_ ev_signal *w)
2474{ 2999{
2475#if EV_MULTIPLICITY
2476 assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2477#endif
2478 if (expect_false (ev_is_active (w))) 3000 if (expect_false (ev_is_active (w)))
2479 return; 3001 return;
2480 3002
2481 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); 3003 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
2482 3004
2483 evpipe_init (EV_A); 3005#if EV_MULTIPLICITY
3006 assert (("libev: a signal must not be attached to two different loops",
3007 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2484 3008
2485 EV_FREQUENT_CHECK; 3009 signals [w->signum - 1].loop = EV_A;
3010#endif
2486 3011
3012 EV_FREQUENT_CHECK;
3013
3014#if EV_USE_SIGNALFD
3015 if (sigfd == -2)
2487 { 3016 {
2488#ifndef _WIN32 3017 sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC);
2489 sigset_t full, prev; 3018 if (sigfd < 0 && errno == EINVAL)
2490 sigfillset (&full); 3019 sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */
2491 sigprocmask (SIG_SETMASK, &full, &prev);
2492#endif
2493 3020
2494 array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); 3021 if (sigfd >= 0)
3022 {
3023 fd_intern (sigfd); /* doing it twice will not hurt */
2495 3024
2496#ifndef _WIN32 3025 sigemptyset (&sigfd_set);
2497 sigprocmask (SIG_SETMASK, &prev, 0); 3026
2498#endif 3027 ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ);
3028 ev_set_priority (&sigfd_w, EV_MAXPRI);
3029 ev_io_start (EV_A_ &sigfd_w);
3030 ev_unref (EV_A); /* signalfd watcher should not keep loop alive */
3031 }
2499 } 3032 }
3033
3034 if (sigfd >= 0)
3035 {
3036 /* TODO: check .head */
3037 sigaddset (&sigfd_set, w->signum);
3038 sigprocmask (SIG_BLOCK, &sigfd_set, 0);
3039
3040 signalfd (sigfd, &sigfd_set, 0);
3041 }
3042#endif
2500 3043
2501 ev_start (EV_A_ (W)w, 1); 3044 ev_start (EV_A_ (W)w, 1);
2502 wlist_add (&signals [w->signum - 1].head, (WL)w); 3045 wlist_add (&signals [w->signum - 1].head, (WL)w);
2503 3046
2504 if (!((WL)w)->next) 3047 if (!((WL)w)->next)
3048# if EV_USE_SIGNALFD
3049 if (sigfd < 0) /*TODO*/
3050# endif
2505 { 3051 {
2506#if _WIN32 3052# ifdef _WIN32
3053 evpipe_init (EV_A);
3054
2507 signal (w->signum, ev_sighandler); 3055 signal (w->signum, ev_sighandler);
2508#else 3056# else
2509 struct sigaction sa; 3057 struct sigaction sa;
3058
3059 evpipe_init (EV_A);
3060
2510 sa.sa_handler = ev_sighandler; 3061 sa.sa_handler = ev_sighandler;
2511 sigfillset (&sa.sa_mask); 3062 sigfillset (&sa.sa_mask);
2512 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3063 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2513 sigaction (w->signum, &sa, 0); 3064 sigaction (w->signum, &sa, 0);
3065
3066 if (origflags & EVFLAG_NOSIGMASK)
3067 {
3068 sigemptyset (&sa.sa_mask);
3069 sigaddset (&sa.sa_mask, w->signum);
3070 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3071 }
2514#endif 3072#endif
2515 } 3073 }
2516 3074
2517 EV_FREQUENT_CHECK; 3075 EV_FREQUENT_CHECK;
2518} 3076}
2519 3077
2520void noinline 3078void noinline
… …
2528 3086
2529 wlist_del (&signals [w->signum - 1].head, (WL)w); 3087 wlist_del (&signals [w->signum - 1].head, (WL)w);
2530 ev_stop (EV_A_ (W)w); 3088 ev_stop (EV_A_ (W)w);
2531 3089
2532 if (!signals [w->signum - 1].head) 3090 if (!signals [w->signum - 1].head)
3091 {
3092#if EV_MULTIPLICITY
3093 signals [w->signum - 1].loop = 0; /* unattach from signal */
3094#endif
3095#if EV_USE_SIGNALFD
3096 if (sigfd >= 0)
3097 {
3098 sigset_t ss;
3099
3100 sigemptyset (&ss);
3101 sigaddset (&ss, w->signum);
3102 sigdelset (&sigfd_set, w->signum);
3103
3104 signalfd (sigfd, &sigfd_set, 0);
3105 sigprocmask (SIG_UNBLOCK, &ss, 0);
3106 }
3107 else
3108#endif
2533 signal (w->signum, SIG_DFL); 3109 signal (w->signum, SIG_DFL);
3110 }
2534 3111
2535 EV_FREQUENT_CHECK; 3112 EV_FREQUENT_CHECK;
2536} 3113}
3114
3115#endif
3116
3117#if EV_CHILD_ENABLE
2537 3118
2538void 3119void
2539ev_child_start (EV_P_ ev_child *w) 3120ev_child_start (EV_P_ ev_child *w)
2540{ 3121{
2541#if EV_MULTIPLICITY 3122#if EV_MULTIPLICITY
… …
2545 return; 3126 return;
2546 3127
2547 EV_FREQUENT_CHECK; 3128 EV_FREQUENT_CHECK;
2548 3129
2549 ev_start (EV_A_ (W)w, 1); 3130 ev_start (EV_A_ (W)w, 1);
2550 wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3131 wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2551 3132
2552 EV_FREQUENT_CHECK; 3133 EV_FREQUENT_CHECK;
2553} 3134}
2554 3135
2555void 3136void
… …
2559 if (expect_false (!ev_is_active (w))) 3140 if (expect_false (!ev_is_active (w)))
2560 return; 3141 return;
2561 3142
2562 EV_FREQUENT_CHECK; 3143 EV_FREQUENT_CHECK;
2563 3144
2564 wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); 3145 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
2565 ev_stop (EV_A_ (W)w); 3146 ev_stop (EV_A_ (W)w);
2566 3147
2567 EV_FREQUENT_CHECK; 3148 EV_FREQUENT_CHECK;
2568} 3149}
3150
3151#endif
2569 3152
2570#if EV_STAT_ENABLE 3153#if EV_STAT_ENABLE
2571 3154
2572# ifdef _WIN32 3155# ifdef _WIN32
2573# undef lstat 3156# undef lstat
… …
2579#define MIN_STAT_INTERVAL 0.1074891 3162#define MIN_STAT_INTERVAL 0.1074891
2580 3163
2581static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 3164static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2582 3165
2583#if EV_USE_INOTIFY 3166#if EV_USE_INOTIFY
2584# define EV_INOTIFY_BUFSIZE 8192 3167
3168/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3169# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2585 3170
2586static void noinline 3171static void noinline
2587infy_add (EV_P_ ev_stat *w) 3172infy_add (EV_P_ ev_stat *w)
2588{ 3173{
2589 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3174 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD);
2590 3175
2591 if (w->wd < 0) 3176 if (w->wd >= 0)
3177 {
3178 struct statfs sfs;
3179
3180 /* now local changes will be tracked by inotify, but remote changes won't */
3181 /* unless the filesystem is known to be local, we therefore still poll */
3182 /* also do poll on <2.6.25, but with normal frequency */
3183
3184 if (!fs_2625)
3185 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3186 else if (!statfs (w->path, &sfs)
3187 && (sfs.f_type == 0x1373 /* devfs */
3188 || sfs.f_type == 0xEF53 /* ext2/3 */
3189 || sfs.f_type == 0x3153464a /* jfs */
3190 || sfs.f_type == 0x52654973 /* reiser3 */
3191 || sfs.f_type == 0x01021994 /* tempfs */
3192 || sfs.f_type == 0x58465342 /* xfs */))
3193 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3194 else
3195 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2592 { 3196 }
3197 else
3198 {
3199 /* can't use inotify, continue to stat */
2593 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3200 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2594 ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */
2595 3201
2596 /* monitor some parent directory for speedup hints */ 3202 /* if path is not there, monitor some parent directory for speedup hints */
2597 /* note that exceeding the hardcoded path limit is not a correctness issue, */ 3203 /* note that exceeding the hardcoded path limit is not a correctness issue, */
2598 /* but an efficiency issue only */ 3204 /* but an efficiency issue only */
2599 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) 3205 if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096)
2600 { 3206 {
2601 char path [4096]; 3207 char path [4096];
… …
2611 if (!pend || pend == path) 3217 if (!pend || pend == path)
2612 break; 3218 break;
2613 3219
2614 *pend = 0; 3220 *pend = 0;
2615 w->wd = inotify_add_watch (fs_fd, path, mask); 3221 w->wd = inotify_add_watch (fs_fd, path, mask);
2616 } 3222 }
2617 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3223 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2618 } 3224 }
2619 } 3225 }
2620 3226
2621 if (w->wd >= 0) 3227 if (w->wd >= 0)
2622 {
2623 wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3228 wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2624 3229
2625 /* now local changes will be tracked by inotify, but remote changes won't */ 3230 /* now re-arm timer, if required */
2626 /* unless the filesystem it known to be local, we therefore still poll */ 3231 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2627 /* also do poll on <2.6.25, but with normal frequency */
2628 struct statfs sfs;
2629
2630 if (fs_2625 && !statfs (w->path, &sfs))
2631 if (sfs.f_type == 0x1373 /* devfs */
2632 || sfs.f_type == 0xEF53 /* ext2/3 */
2633 || sfs.f_type == 0x3153464a /* jfs */
2634 || sfs.f_type == 0x52654973 /* reiser3 */
2635 || sfs.f_type == 0x01021994 /* tempfs */
2636 || sfs.f_type == 0x58465342 /* xfs */)
2637 return;
2638
2639 w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL;
2640 ev_timer_again (EV_A_ &w->timer); 3232 ev_timer_again (EV_A_ &w->timer);
2641 } 3233 if (ev_is_active (&w->timer)) ev_unref (EV_A);
2642} 3234}
2643 3235
2644static void noinline 3236static void noinline
2645infy_del (EV_P_ ev_stat *w) 3237infy_del (EV_P_ ev_stat *w)
2646{ 3238{
… …
2649 3241
2650 if (wd < 0) 3242 if (wd < 0)
2651 return; 3243 return;
2652 3244
2653 w->wd = -2; 3245 w->wd = -2;
2654 slot = wd & (EV_INOTIFY_HASHSIZE - 1); 3246 slot = wd & ((EV_INOTIFY_HASHSIZE) - 1);
2655 wlist_del (&fs_hash [slot].head, (WL)w); 3247 wlist_del (&fs_hash [slot].head, (WL)w);
2656 3248
2657 /* remove this watcher, if others are watching it, they will rearm */ 3249 /* remove this watcher, if others are watching it, they will rearm */
2658 inotify_rm_watch (fs_fd, wd); 3250 inotify_rm_watch (fs_fd, wd);
2659} 3251}
… …
2661static void noinline 3253static void noinline
2662infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 3254infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
2663{ 3255{
2664 if (slot < 0) 3256 if (slot < 0)
2665 /* overflow, need to check for all hash slots */ 3257 /* overflow, need to check for all hash slots */
2666 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3258 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2667 infy_wd (EV_A_ slot, wd, ev); 3259 infy_wd (EV_A_ slot, wd, ev);
2668 else 3260 else
2669 { 3261 {
2670 WL w_; 3262 WL w_;
2671 3263
2672 for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) 3264 for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; )
2673 { 3265 {
2674 ev_stat *w = (ev_stat *)w_; 3266 ev_stat *w = (ev_stat *)w_;
2675 w_ = w_->next; /* lets us remove this watcher and all before it */ 3267 w_ = w_->next; /* lets us remove this watcher and all before it */
2676 3268
2677 if (w->wd == wd || wd == -1) 3269 if (w->wd == wd || wd == -1)
2678 { 3270 {
2679 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) 3271 if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF))
2680 { 3272 {
2681 wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); 3273 wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w);
2682 w->wd = -1; 3274 w->wd = -1;
2683 infy_add (EV_A_ w); /* re-add, no matter what */ 3275 infy_add (EV_A_ w); /* re-add, no matter what */
2684 } 3276 }
2685 3277
2686 stat_timer_cb (EV_A_ &w->timer, 0); 3278 stat_timer_cb (EV_A_ &w->timer, 0);
… …
2691 3283
2692static void 3284static void
2693infy_cb (EV_P_ ev_io *w, int revents) 3285infy_cb (EV_P_ ev_io *w, int revents)
2694{ 3286{
2695 char buf [EV_INOTIFY_BUFSIZE]; 3287 char buf [EV_INOTIFY_BUFSIZE];
2696 struct inotify_event *ev = (struct inotify_event *)buf;
2697 int ofs; 3288 int ofs;
2698 int len = read (fs_fd, buf, sizeof (buf)); 3289 int len = read (fs_fd, buf, sizeof (buf));
2699 3290
2700 for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) 3291 for (ofs = 0; ofs < len; )
3292 {
3293 struct inotify_event *ev = (struct inotify_event *)(buf + ofs);
2701 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3294 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3295 ofs += sizeof (struct inotify_event) + ev->len;
3296 }
2702} 3297}
2703 3298
2704inline_size void 3299inline_size void ecb_cold
2705check_2625 (EV_P) 3300ev_check_2625 (EV_P)
2706{ 3301{
2707 /* kernels < 2.6.25 are borked 3302 /* kernels < 2.6.25 are borked
2708 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3303 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
2709 */ 3304 */
2710 struct utsname buf; 3305 if (ev_linux_version () < 0x020619)
2711 int major, minor, micro;
2712
2713 if (uname (&buf))
2714 return; 3306 return;
2715 3307
2716 if (sscanf (buf.release, "%d.%d.%d", &major, &minor, &micro) != 3)
2717 return;
2718
2719 if (major < 2
2720 || (major == 2 && minor < 6)
2721 || (major == 2 && minor == 6 && micro < 25))
2722 return;
2723
2724 fs_2625 = 1; 3308 fs_2625 = 1;
3309}
3310
3311inline_size int
3312infy_newfd (void)
3313{
3314#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK)
3315 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3316 if (fd >= 0)
3317 return fd;
3318#endif
3319 return inotify_init ();
2725} 3320}
2726 3321
2727inline_size void 3322inline_size void
2728infy_init (EV_P) 3323infy_init (EV_P)
2729{ 3324{
2730 if (fs_fd != -2) 3325 if (fs_fd != -2)
2731 return; 3326 return;
2732 3327
2733 fs_fd = -1; 3328 fs_fd = -1;
2734 3329
2735 check_2625 (EV_A); 3330 ev_check_2625 (EV_A);
2736 3331
2737 fs_fd = inotify_init (); 3332 fs_fd = infy_newfd ();
2738 3333
2739 if (fs_fd >= 0) 3334 if (fs_fd >= 0)
2740 { 3335 {
3336 fd_intern (fs_fd);
2741 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); 3337 ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ);
2742 ev_set_priority (&fs_w, EV_MAXPRI); 3338 ev_set_priority (&fs_w, EV_MAXPRI);
2743 ev_io_start (EV_A_ &fs_w); 3339 ev_io_start (EV_A_ &fs_w);
3340 ev_unref (EV_A);
2744 } 3341 }
2745} 3342}
2746 3343
2747inline_size void 3344inline_size void
2748infy_fork (EV_P) 3345infy_fork (EV_P)
… …
2750 int slot; 3347 int slot;
2751 3348
2752 if (fs_fd < 0) 3349 if (fs_fd < 0)
2753 return; 3350 return;
2754 3351
3352 ev_ref (EV_A);
3353 ev_io_stop (EV_A_ &fs_w);
2755 close (fs_fd); 3354 close (fs_fd);
2756 fs_fd = inotify_init (); 3355 fs_fd = infy_newfd ();
2757 3356
3357 if (fs_fd >= 0)
3358 {
3359 fd_intern (fs_fd);
3360 ev_io_set (&fs_w, fs_fd, EV_READ);
3361 ev_io_start (EV_A_ &fs_w);
3362 ev_unref (EV_A);
3363 }
3364
2758 for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) 3365 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
2759 { 3366 {
2760 WL w_ = fs_hash [slot].head; 3367 WL w_ = fs_hash [slot].head;
2761 fs_hash [slot].head = 0; 3368 fs_hash [slot].head = 0;
2762 3369
2763 while (w_) 3370 while (w_)
… …
2768 w->wd = -1; 3375 w->wd = -1;
2769 3376
2770 if (fs_fd >= 0) 3377 if (fs_fd >= 0)
2771 infy_add (EV_A_ w); /* re-add, no matter what */ 3378 infy_add (EV_A_ w); /* re-add, no matter what */
2772 else 3379 else
3380 {
3381 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3382 if (ev_is_active (&w->timer)) ev_ref (EV_A);
2773 ev_timer_again (EV_A_ &w->timer); 3383 ev_timer_again (EV_A_ &w->timer);
3384 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3385 }
2774 } 3386 }
2775 } 3387 }
2776} 3388}
2777 3389
2778#endif 3390#endif
… …
2795static void noinline 3407static void noinline
2796stat_timer_cb (EV_P_ ev_timer *w_, int revents) 3408stat_timer_cb (EV_P_ ev_timer *w_, int revents)
2797{ 3409{
2798 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 3410 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
2799 3411
2800 /* we copy this here each the time so that */ 3412 ev_statdata prev = w->attr;
2801 /* prev has the old value when the callback gets invoked */
2802 w->prev = w->attr;
2803 ev_stat_stat (EV_A_ w); 3413 ev_stat_stat (EV_A_ w);
2804 3414
2805 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ 3415 /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */
2806 if ( 3416 if (
2807 w->prev.st_dev != w->attr.st_dev 3417 prev.st_dev != w->attr.st_dev
2808 || w->prev.st_ino != w->attr.st_ino 3418 || prev.st_ino != w->attr.st_ino
2809 || w->prev.st_mode != w->attr.st_mode 3419 || prev.st_mode != w->attr.st_mode
2810 || w->prev.st_nlink != w->attr.st_nlink 3420 || prev.st_nlink != w->attr.st_nlink
2811 || w->prev.st_uid != w->attr.st_uid 3421 || prev.st_uid != w->attr.st_uid
2812 || w->prev.st_gid != w->attr.st_gid 3422 || prev.st_gid != w->attr.st_gid
2813 || w->prev.st_rdev != w->attr.st_rdev 3423 || prev.st_rdev != w->attr.st_rdev
2814 || w->prev.st_size != w->attr.st_size 3424 || prev.st_size != w->attr.st_size
2815 || w->prev.st_atime != w->attr.st_atime 3425 || prev.st_atime != w->attr.st_atime
2816 || w->prev.st_mtime != w->attr.st_mtime 3426 || prev.st_mtime != w->attr.st_mtime
2817 || w->prev.st_ctime != w->attr.st_ctime 3427 || prev.st_ctime != w->attr.st_ctime
2818 ) { 3428 ) {
3429 /* we only update w->prev on actual differences */
3430 /* in case we test more often than invoke the callback, */
3431 /* to ensure that prev is always different to attr */
3432 w->prev = prev;
3433
2819 #if EV_USE_INOTIFY 3434 #if EV_USE_INOTIFY
2820 if (fs_fd >= 0) 3435 if (fs_fd >= 0)
2821 { 3436 {
2822 infy_del (EV_A_ w); 3437 infy_del (EV_A_ w);
2823 infy_add (EV_A_ w); 3438 infy_add (EV_A_ w);
… …
2848 3463
2849 if (fs_fd >= 0) 3464 if (fs_fd >= 0)
2850 infy_add (EV_A_ w); 3465 infy_add (EV_A_ w);
2851 else 3466 else
2852#endif 3467#endif
3468 {
2853 ev_timer_again (EV_A_ &w->timer); 3469 ev_timer_again (EV_A_ &w->timer);
3470 ev_unref (EV_A);
3471 }
2854 3472
2855 ev_start (EV_A_ (W)w, 1); 3473 ev_start (EV_A_ (W)w, 1);
2856 3474
2857 EV_FREQUENT_CHECK; 3475 EV_FREQUENT_CHECK;
2858} 3476}
… …
2867 EV_FREQUENT_CHECK; 3485 EV_FREQUENT_CHECK;
2868 3486
2869#if EV_USE_INOTIFY 3487#if EV_USE_INOTIFY
2870 infy_del (EV_A_ w); 3488 infy_del (EV_A_ w);
2871#endif 3489#endif
3490
3491 if (ev_is_active (&w->timer))
3492 {
3493 ev_ref (EV_A);
2872 ev_timer_stop (EV_A_ &w->timer); 3494 ev_timer_stop (EV_A_ &w->timer);
3495 }
2873 3496
2874 ev_stop (EV_A_ (W)w); 3497 ev_stop (EV_A_ (W)w);
2875 3498
2876 EV_FREQUENT_CHECK; 3499 EV_FREQUENT_CHECK;
2877} 3500}
… …
2922 3545
2923 EV_FREQUENT_CHECK; 3546 EV_FREQUENT_CHECK;
2924} 3547}
2925#endif 3548#endif
2926 3549
3550#if EV_PREPARE_ENABLE
2927void 3551void
2928ev_prepare_start (EV_P_ ev_prepare *w) 3552ev_prepare_start (EV_P_ ev_prepare *w)
2929{ 3553{
2930 if (expect_false (ev_is_active (w))) 3554 if (expect_false (ev_is_active (w)))
2931 return; 3555 return;
… …
2957 3581
2958 ev_stop (EV_A_ (W)w); 3582 ev_stop (EV_A_ (W)w);
2959 3583
2960 EV_FREQUENT_CHECK; 3584 EV_FREQUENT_CHECK;
2961} 3585}
3586#endif
2962 3587
3588#if EV_CHECK_ENABLE
2963void 3589void
2964ev_check_start (EV_P_ ev_check *w) 3590ev_check_start (EV_P_ ev_check *w)
2965{ 3591{
2966 if (expect_false (ev_is_active (w))) 3592 if (expect_false (ev_is_active (w)))
2967 return; 3593 return;
… …
2993 3619
2994 ev_stop (EV_A_ (W)w); 3620 ev_stop (EV_A_ (W)w);
2995 3621
2996 EV_FREQUENT_CHECK; 3622 EV_FREQUENT_CHECK;
2997} 3623}
3624#endif
2998 3625
2999#if EV_EMBED_ENABLE 3626#if EV_EMBED_ENABLE
3000void noinline 3627void noinline
3001ev_embed_sweep (EV_P_ ev_embed *w) 3628ev_embed_sweep (EV_P_ ev_embed *w)
3002{ 3629{
3003 ev_loop (w->other, EVLOOP_NONBLOCK); 3630 ev_run (w->other, EVRUN_NOWAIT);
3004} 3631}
3005 3632
3006static void 3633static void
3007embed_io_cb (EV_P_ ev_io *io, int revents) 3634embed_io_cb (EV_P_ ev_io *io, int revents)
3008{ 3635{
3009 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 3636 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3010 3637
3011 if (ev_cb (w)) 3638 if (ev_cb (w))
3012 ev_feed_event (EV_A_ (W)w, EV_EMBED); 3639 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3013 else 3640 else
3014 ev_loop (w->other, EVLOOP_NONBLOCK); 3641 ev_run (w->other, EVRUN_NOWAIT);
3015} 3642}
3016 3643
3017static void 3644static void
3018embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 3645embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3019{ 3646{
3020 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); 3647 ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare));
3021 3648
3022 { 3649 {
3023 struct ev_loop *loop = w->other; 3650 EV_P = w->other;
3024 3651
3025 while (fdchangecnt) 3652 while (fdchangecnt)
3026 { 3653 {
3027 fd_reify (EV_A); 3654 fd_reify (EV_A);
3028 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3655 ev_run (EV_A_ EVRUN_NOWAIT);
3029 } 3656 }
3030 } 3657 }
3031} 3658}
3032 3659
3033static void 3660static void
… …
3036 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 3663 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
3037 3664
3038 ev_embed_stop (EV_A_ w); 3665 ev_embed_stop (EV_A_ w);
3039 3666
3040 { 3667 {
3041 struct ev_loop *loop = w->other; 3668 EV_P = w->other;
3042 3669
3043 ev_loop_fork (EV_A); 3670 ev_loop_fork (EV_A);
3044 ev_loop (EV_A_ EVLOOP_NONBLOCK); 3671 ev_run (EV_A_ EVRUN_NOWAIT);
3045 } 3672 }
3046 3673
3047 ev_embed_start (EV_A_ w); 3674 ev_embed_start (EV_A_ w);
3048} 3675}
3049 3676
… …
3060{ 3687{
3061 if (expect_false (ev_is_active (w))) 3688 if (expect_false (ev_is_active (w)))
3062 return; 3689 return;
3063 3690
3064 { 3691 {
3065 struct ev_loop *loop = w->other; 3692 EV_P = w->other;
3066 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 3693 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
3067 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); 3694 ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ);
3068 } 3695 }
3069 3696
3070 EV_FREQUENT_CHECK; 3697 EV_FREQUENT_CHECK;
… …
3097 3724
3098 ev_io_stop (EV_A_ &w->io); 3725 ev_io_stop (EV_A_ &w->io);
3099 ev_prepare_stop (EV_A_ &w->prepare); 3726 ev_prepare_stop (EV_A_ &w->prepare);
3100 ev_fork_stop (EV_A_ &w->fork); 3727 ev_fork_stop (EV_A_ &w->fork);
3101 3728
3729 ev_stop (EV_A_ (W)w);
3730
3102 EV_FREQUENT_CHECK; 3731 EV_FREQUENT_CHECK;
3103} 3732}
3104#endif 3733#endif
3105 3734
3106#if EV_FORK_ENABLE 3735#if EV_FORK_ENABLE
… …
3139 3768
3140 EV_FREQUENT_CHECK; 3769 EV_FREQUENT_CHECK;
3141} 3770}
3142#endif 3771#endif
3143 3772
3773#if EV_CLEANUP_ENABLE
3774void
3775ev_cleanup_start (EV_P_ ev_cleanup *w)
3776{
3777 if (expect_false (ev_is_active (w)))
3778 return;
3779
3780 EV_FREQUENT_CHECK;
3781
3782 ev_start (EV_A_ (W)w, ++cleanupcnt);
3783 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
3784 cleanups [cleanupcnt - 1] = w;
3785
3786 /* cleanup watchers should never keep a refcount on the loop */
3787 ev_unref (EV_A);
3788 EV_FREQUENT_CHECK;
3789}
3790
3791void
3792ev_cleanup_stop (EV_P_ ev_cleanup *w)
3793{
3794 clear_pending (EV_A_ (W)w);
3795 if (expect_false (!ev_is_active (w)))
3796 return;
3797
3798 EV_FREQUENT_CHECK;
3799 ev_ref (EV_A);
3800
3801 {
3802 int active = ev_active (w);
3803
3804 cleanups [active - 1] = cleanups [--cleanupcnt];
3805 ev_active (cleanups [active - 1]) = active;
3806 }
3807
3808 ev_stop (EV_A_ (W)w);
3809
3810 EV_FREQUENT_CHECK;
3811}
3812#endif
3813
3144#if EV_ASYNC_ENABLE 3814#if EV_ASYNC_ENABLE
3145void 3815void
3146ev_async_start (EV_P_ ev_async *w) 3816ev_async_start (EV_P_ ev_async *w)
3147{ 3817{
3148 if (expect_false (ev_is_active (w))) 3818 if (expect_false (ev_is_active (w)))
3149 return; 3819 return;
3150 3820
3821 w->sent = 0;
3822
3151 evpipe_init (EV_A); 3823 evpipe_init (EV_A);
3152 3824
3153 EV_FREQUENT_CHECK; 3825 EV_FREQUENT_CHECK;
3154 3826
3155 ev_start (EV_A_ (W)w, ++asynccnt); 3827 ev_start (EV_A_ (W)w, ++asynccnt);
… …
3182 3854
3183void 3855void
3184ev_async_send (EV_P_ ev_async *w) 3856ev_async_send (EV_P_ ev_async *w)
3185{ 3857{
3186 w->sent = 1; 3858 w->sent = 1;
3187 evpipe_write (EV_A_ &gotasync); 3859 evpipe_write (EV_A_ &async_pending);
3188} 3860}
3189#endif 3861#endif
3190 3862
3191/*****************************************************************************/ 3863/*****************************************************************************/
3192 3864
… …
3232{ 3904{
3233 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 3905 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3234 3906
3235 if (expect_false (!once)) 3907 if (expect_false (!once))
3236 { 3908 {
3237 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 3909 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3238 return; 3910 return;
3239 } 3911 }
3240 3912
3241 once->cb = cb; 3913 once->cb = cb;
3242 once->arg = arg; 3914 once->arg = arg;
… …
3257} 3929}
3258 3930
3259/*****************************************************************************/ 3931/*****************************************************************************/
3260 3932
3261#if EV_WALK_ENABLE 3933#if EV_WALK_ENABLE
3262void 3934void ecb_cold
3263ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 3935ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
3264{ 3936{
3265 int i, j; 3937 int i, j;
3266 ev_watcher_list *wl, *wn; 3938 ev_watcher_list *wl, *wn;
3267 3939
… …
3329 if (types & EV_ASYNC) 4001 if (types & EV_ASYNC)
3330 for (i = asynccnt; i--; ) 4002 for (i = asynccnt; i--; )
3331 cb (EV_A_ EV_ASYNC, asyncs [i]); 4003 cb (EV_A_ EV_ASYNC, asyncs [i]);
3332#endif 4004#endif
3333 4005
4006#if EV_PREPARE_ENABLE
3334 if (types & EV_PREPARE) 4007 if (types & EV_PREPARE)
3335 for (i = preparecnt; i--; ) 4008 for (i = preparecnt; i--; )
3336#if EV_EMBED_ENABLE 4009# if EV_EMBED_ENABLE
3337 if (ev_cb (prepares [i]) != embed_prepare_cb) 4010 if (ev_cb (prepares [i]) != embed_prepare_cb)
3338#endif 4011# endif
3339 cb (EV_A_ EV_PREPARE, prepares [i]); 4012 cb (EV_A_ EV_PREPARE, prepares [i]);
4013#endif
3340 4014
4015#if EV_CHECK_ENABLE
3341 if (types & EV_CHECK) 4016 if (types & EV_CHECK)
3342 for (i = checkcnt; i--; ) 4017 for (i = checkcnt; i--; )
3343 cb (EV_A_ EV_CHECK, checks [i]); 4018 cb (EV_A_ EV_CHECK, checks [i]);
4019#endif
3344 4020
4021#if EV_SIGNAL_ENABLE
3345 if (types & EV_SIGNAL) 4022 if (types & EV_SIGNAL)
3346 for (i = 0; i < signalmax; ++i) 4023 for (i = 0; i < EV_NSIG - 1; ++i)
3347 for (wl = signals [i].head; wl; ) 4024 for (wl = signals [i].head; wl; )
3348 { 4025 {
3349 wn = wl->next; 4026 wn = wl->next;
3350 cb (EV_A_ EV_SIGNAL, wl); 4027 cb (EV_A_ EV_SIGNAL, wl);
3351 wl = wn; 4028 wl = wn;
3352 } 4029 }
4030#endif
3353 4031
4032#if EV_CHILD_ENABLE
3354 if (types & EV_CHILD) 4033 if (types & EV_CHILD)
3355 for (i = EV_PID_HASHSIZE; i--; ) 4034 for (i = (EV_PID_HASHSIZE); i--; )
3356 for (wl = childs [i]; wl; ) 4035 for (wl = childs [i]; wl; )
3357 { 4036 {
3358 wn = wl->next; 4037 wn = wl->next;
3359 cb (EV_A_ EV_CHILD, wl); 4038 cb (EV_A_ EV_CHILD, wl);
3360 wl = wn; 4039 wl = wn;
3361 } 4040 }
4041#endif
3362/* EV_STAT 0x00001000 /* stat data changed */ 4042/* EV_STAT 0x00001000 /* stat data changed */
3363/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 4043/* EV_EMBED 0x00010000 /* embedded event loop needs sweep */
3364} 4044}
3365#endif 4045#endif
3366 4046
3367#if EV_MULTIPLICITY 4047#if EV_MULTIPLICITY
3368 #include "ev_wrap.h" 4048 #include "ev_wrap.h"
3369#endif 4049#endif
3370 4050
3371#ifdef __cplusplus 4051EV_CPP(})
3372}
3373#endif
3374 4052

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