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Comparing libev/ev.c (file contents):
Revision 1.340 by root, Tue Mar 16 20:39:29 2010 UTC vs.
Revision 1.435 by root, Sat May 26 08:52:09 2012 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012 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
… …
57# endif 59# endif
58# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
59# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
60# endif 62# endif
61# endif 63# endif
62# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
63# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
64# endif 66# endif
65 67
66# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
67# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
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 EV_FEATURE_OS 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
92# define EV_USE_SELECT EV_FEATURE_BACKENDS 104# define EV_USE_POLL EV_FEATURE_BACKENDS
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 EV_FEATURE_BACKENDS
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
112# ifndef EV_USE_EPOLL
108# define EV_USE_EPOLL EV_FEATURE_BACKENDS 113# define EV_USE_EPOLL EV_FEATURE_BACKENDS
109# else
110# define EV_USE_EPOLL 0
111# endif 114# endif
115# else
116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0
112# endif 118# endif
113 119
114# ifndef EV_USE_KQUEUE
115# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE
116# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
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
130# ifndef EV_USE_PORT
124# define EV_USE_PORT EV_FEATURE_BACKENDS 131# define EV_USE_PORT EV_FEATURE_BACKENDS
125# else
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
139# ifndef EV_USE_INOTIFY
132# define EV_USE_INOTIFY EV_FEATURE_OS 140# define EV_USE_INOTIFY EV_FEATURE_OS
133# else
134# define EV_USE_INOTIFY 0
135# endif 141# endif
142# else
143# undef EV_USE_INOTIFY
144# define EV_USE_INOTIFY 0
136# endif 145# endif
137 146
138# ifndef EV_USE_SIGNALFD
139# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H 147# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
148# ifndef EV_USE_SIGNALFD
140# define EV_USE_SIGNALFD EV_FEATURE_OS 149# define EV_USE_SIGNALFD EV_FEATURE_OS
141# else
142# define EV_USE_SIGNALFD 0
143# endif 150# endif
151# else
152# undef EV_USE_SIGNALFD
153# define EV_USE_SIGNALFD 0
144# endif 154# endif
145 155
156# if HAVE_EVENTFD
146# ifndef EV_USE_EVENTFD 157# ifndef EV_USE_EVENTFD
147# if HAVE_EVENTFD
148# define EV_USE_EVENTFD EV_FEATURE_OS 158# define EV_USE_EVENTFD EV_FEATURE_OS
149# else
150# define EV_USE_EVENTFD 0
151# endif 159# endif
160# else
161# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0
152# endif 163# endif
153 164
154#endif 165#endif
155 166
156#include <math.h>
157#include <stdlib.h> 167#include <stdlib.h>
158#include <string.h> 168#include <string.h>
159#include <fcntl.h> 169#include <fcntl.h>
160#include <stddef.h> 170#include <stddef.h>
161 171
… …
171 181
172#ifdef EV_H 182#ifdef EV_H
173# include EV_H 183# include EV_H
174#else 184#else
175# include "ev.h" 185# include "ev.h"
186#endif
187
188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
176#endif 197#endif
177 198
178#ifndef _WIN32 199#ifndef _WIN32
179# include <sys/time.h> 200# include <sys/time.h>
180# include <sys/wait.h> 201# include <sys/wait.h>
181# include <unistd.h> 202# include <unistd.h>
182#else 203#else
183# include <io.h> 204# include <io.h>
184# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
185# include <windows.h> 207# include <windows.h>
186# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
187# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
188# endif 210# endif
189# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
190#endif 212#endif
191 213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221
192/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
193 223
194/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
195#if defined (EV_NSIG) 225#if defined EV_NSIG
196/* use what's provided */ 226/* use what's provided */
197#elif defined (NSIG) 227#elif defined NSIG
198# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
199#elif defined(_NSIG) 229#elif defined _NSIG
200# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
201#elif defined (SIGMAX) 231#elif defined SIGMAX
202# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
203#elif defined (SIG_MAX) 233#elif defined SIG_MAX
204# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
205#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
206# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
207#elif defined (MAXSIG) 237#elif defined MAXSIG
208# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
209#elif defined (MAX_SIG) 239#elif defined MAX_SIG
210# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
211#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
212# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
213#elif defined (_sys_nsig) 243#elif defined _sys_nsig
214# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
215#else 245#else
216# error "unable to find value for NSIG, please report" 246# error "unable to find value for NSIG, please report"
217/* to make it compile regardless, just remove the above line, */ 247/* to make it compile regardless, just remove the above line, */
218/* but consider reporting it, too! :) */ 248/* but consider reporting it, too! :) */
219# define EV_NSIG 65 249# define EV_NSIG 65
220#endif 250#endif
221 251
252#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0
254#endif
255
222#ifndef EV_USE_CLOCK_SYSCALL 256#ifndef EV_USE_CLOCK_SYSCALL
223# if __linux && __GLIBC__ >= 2 257# if __linux && __GLIBC__ >= 2
224# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
225# else 259# else
226# define EV_USE_CLOCK_SYSCALL 0 260# define EV_USE_CLOCK_SYSCALL 0
227# endif 261# endif
228#endif 262#endif
229 263
230#ifndef EV_USE_MONOTONIC 264#ifndef EV_USE_MONOTONIC
231# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
232# define EV_USE_MONOTONIC EV_FEATURE_OS 266# define EV_USE_MONOTONIC EV_FEATURE_OS
233# else 267# else
234# define EV_USE_MONOTONIC 0 268# define EV_USE_MONOTONIC 0
235# endif 269# endif
236#endif 270#endif
… …
326#endif 360#endif
327 361
328/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 362/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
329/* which makes programs even slower. might work on other unices, too. */ 363/* which makes programs even slower. might work on other unices, too. */
330#if EV_USE_CLOCK_SYSCALL 364#if EV_USE_CLOCK_SYSCALL
331# include <syscall.h> 365# include <sys/syscall.h>
332# ifdef SYS_clock_gettime 366# ifdef SYS_clock_gettime
333# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 367# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
334# undef EV_USE_MONOTONIC 368# undef EV_USE_MONOTONIC
335# define EV_USE_MONOTONIC 1 369# define EV_USE_MONOTONIC 1
336# else 370# else
… …
361# undef EV_USE_INOTIFY 395# undef EV_USE_INOTIFY
362# define EV_USE_INOTIFY 0 396# define EV_USE_INOTIFY 0
363#endif 397#endif
364 398
365#if !EV_USE_NANOSLEEP 399#if !EV_USE_NANOSLEEP
366# ifndef _WIN32 400/* hp-ux has it in sys/time.h, which we unconditionally include above */
401# if !defined _WIN32 && !defined __hpux
367# include <sys/select.h> 402# include <sys/select.h>
368# endif 403# endif
369#endif 404#endif
370 405
371#if EV_USE_INOTIFY 406#if EV_USE_INOTIFY
372# include <sys/utsname.h>
373# include <sys/statfs.h> 407# include <sys/statfs.h>
374# include <sys/inotify.h> 408# include <sys/inotify.h>
375/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 409/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
376# ifndef IN_DONT_FOLLOW 410# ifndef IN_DONT_FOLLOW
377# undef EV_USE_INOTIFY 411# undef EV_USE_INOTIFY
378# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
379# endif 413# endif
380#endif
381
382#if EV_SELECT_IS_WINSOCKET
383# include <winsock.h>
384#endif 414#endif
385 415
386#if EV_USE_EVENTFD 416#if EV_USE_EVENTFD
387/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 417/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
388# include <stdint.h> 418# include <stdint.h>
… …
394# define EFD_CLOEXEC O_CLOEXEC 424# define EFD_CLOEXEC O_CLOEXEC
395# else 425# else
396# define EFD_CLOEXEC 02000000 426# define EFD_CLOEXEC 02000000
397# endif 427# endif
398# endif 428# endif
399# ifdef __cplusplus
400extern "C" {
401# endif
402int (eventfd) (unsigned int initval, int flags); 429EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
403# ifdef __cplusplus
404}
405# endif
406#endif 430#endif
407 431
408#if EV_USE_SIGNALFD 432#if EV_USE_SIGNALFD
409/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
410# include <stdint.h> 434# include <stdint.h>
… …
416# define SFD_CLOEXEC O_CLOEXEC 440# define SFD_CLOEXEC O_CLOEXEC
417# else 441# else
418# define SFD_CLOEXEC 02000000 442# define SFD_CLOEXEC 02000000
419# endif 443# endif
420# endif 444# endif
421# ifdef __cplusplus
422extern "C" {
423# endif
424int signalfd (int fd, const sigset_t *mask, int flags); 445EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags);
425 446
426struct signalfd_siginfo 447struct signalfd_siginfo
427{ 448{
428 uint32_t ssi_signo; 449 uint32_t ssi_signo;
429 char pad[128 - sizeof (uint32_t)]; 450 char pad[128 - sizeof (uint32_t)];
430}; 451};
431# ifdef __cplusplus
432}
433# endif 452#endif
434#endif
435
436 453
437/**/ 454/**/
438 455
439#if EV_VERIFY >= 3 456#if EV_VERIFY >= 3
440# define EV_FREQUENT_CHECK ev_verify (EV_A) 457# define EV_FREQUENT_CHECK ev_verify (EV_A)
441#else 458#else
442# define EV_FREQUENT_CHECK do { } while (0) 459# define EV_FREQUENT_CHECK do { } while (0)
443#endif 460#endif
444 461
445/* 462/*
446 * This is used to avoid floating point rounding problems. 463 * This is used to work around floating point rounding problems.
447 * It is added to ev_rt_now when scheduling periodics
448 * to ensure progress, time-wise, even when rounding
449 * errors are against us.
450 * This value is good at least till the year 4000. 464 * This value is good at least till the year 4000.
451 * Better solutions welcome.
452 */ 465 */
453#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 466#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
467/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
454 468
455#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 469#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
456#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 470#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
457 471
472#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
473#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
474
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */
477/*
478 * libecb - http://software.schmorp.de/pkg/libecb
479 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved.
483 *
484 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met:
486 *
487 * 1. Redistributions of source code must retain the above copyright notice,
488 * this list of conditions and the following disclaimer.
489 *
490 * 2. Redistributions in binary form must reproduce the above copyright
491 * notice, this list of conditions and the following disclaimer in the
492 * documentation and/or other materials provided with the distribution.
493 *
494 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
495 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
496 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
497 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
498 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE.
504 */
505
506#ifndef ECB_H
507#define ECB_H
508
509#ifdef _WIN32
510 typedef signed char int8_t;
511 typedef unsigned char uint8_t;
512 typedef signed short int16_t;
513 typedef unsigned short uint16_t;
514 typedef signed int int32_t;
515 typedef unsigned int uint32_t;
458#if __GNUC__ >= 4 516 #if __GNUC__
459# define expect(expr,value) __builtin_expect ((expr),(value)) 517 typedef signed long long int64_t;
460# define noinline __attribute__ ((noinline)) 518 typedef unsigned long long uint64_t;
519 #else /* _MSC_VER || __BORLANDC__ */
520 typedef signed __int64 int64_t;
521 typedef unsigned __int64 uint64_t;
522 #endif
461#else 523#else
462# define expect(expr,value) (expr) 524 #include <inttypes.h>
463# define noinline
464# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
465# define inline
466# endif 525#endif
526
527/* many compilers define _GNUC_ to some versions but then only implement
528 * what their idiot authors think are the "more important" extensions,
529 * causing enormous grief in return for some better fake benchmark numbers.
530 * or so.
531 * we try to detect these and simply assume they are not gcc - if they have
532 * an issue with that they should have done it right in the first place.
533 */
534#ifndef ECB_GCC_VERSION
535 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
536 #define ECB_GCC_VERSION(major,minor) 0
537 #else
538 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
467#endif 539 #endif
540#endif
468 541
542/*****************************************************************************/
543
544/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
545/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
546
547#if ECB_NO_THREADS
548# define ECB_NO_SMP 1
549#endif
550
551#if ECB_NO_THREADS || ECB_NO_SMP
552 #define ECB_MEMORY_FENCE do { } while (0)
553#endif
554
555#ifndef ECB_MEMORY_FENCE
556 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
557 #if __i386 || __i386__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
559 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */
560 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */
561 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */
565 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
567 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
568 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
570 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
571 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
573 #elif __sparc || __sparc__
574 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory")
575 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
576 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
577 #elif defined __s390__ || defined __s390x__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
579 #elif defined __mips__
580 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
581 #elif defined __alpha__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
583 #endif
584 #endif
585#endif
586
587#ifndef ECB_MEMORY_FENCE
588 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
589 #define ECB_MEMORY_FENCE __sync_synchronize ()
590 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */
591 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */
592 #elif _MSC_VER >= 1400 /* VC++ 2005 */
593 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
594 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
595 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
596 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
597 #elif defined _WIN32
598 #include <WinNT.h>
599 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
600 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
601 #include <mbarrier.h>
602 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
603 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
604 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
605 #elif __xlC__
606 #define ECB_MEMORY_FENCE __sync ()
607 #endif
608#endif
609
610#ifndef ECB_MEMORY_FENCE
611 #if !ECB_AVOID_PTHREADS
612 /*
613 * if you get undefined symbol references to pthread_mutex_lock,
614 * or failure to find pthread.h, then you should implement
615 * the ECB_MEMORY_FENCE operations for your cpu/compiler
616 * OR provide pthread.h and link against the posix thread library
617 * of your system.
618 */
619 #include <pthread.h>
620 #define ECB_NEEDS_PTHREADS 1
621 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
622
623 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
624 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
625 #endif
626#endif
627
628#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
629 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
630#endif
631
632#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
633 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
634#endif
635
636/*****************************************************************************/
637
638#define ECB_C99 (__STDC_VERSION__ >= 199901L)
639
640#if __cplusplus
641 #define ecb_inline static inline
642#elif ECB_GCC_VERSION(2,5)
643 #define ecb_inline static __inline__
644#elif ECB_C99
645 #define ecb_inline static inline
646#else
647 #define ecb_inline static
648#endif
649
650#if ECB_GCC_VERSION(3,3)
651 #define ecb_restrict __restrict__
652#elif ECB_C99
653 #define ecb_restrict restrict
654#else
655 #define ecb_restrict
656#endif
657
658typedef int ecb_bool;
659
660#define ECB_CONCAT_(a, b) a ## b
661#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
662#define ECB_STRINGIFY_(a) # a
663#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
664
665#define ecb_function_ ecb_inline
666
667#if ECB_GCC_VERSION(3,1)
668 #define ecb_attribute(attrlist) __attribute__(attrlist)
669 #define ecb_is_constant(expr) __builtin_constant_p (expr)
670 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
671 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
672#else
673 #define ecb_attribute(attrlist)
674 #define ecb_is_constant(expr) 0
675 #define ecb_expect(expr,value) (expr)
676 #define ecb_prefetch(addr,rw,locality)
677#endif
678
679/* no emulation for ecb_decltype */
680#if ECB_GCC_VERSION(4,5)
681 #define ecb_decltype(x) __decltype(x)
682#elif ECB_GCC_VERSION(3,0)
683 #define ecb_decltype(x) __typeof(x)
684#endif
685
686#define ecb_noinline ecb_attribute ((__noinline__))
687#define ecb_noreturn ecb_attribute ((__noreturn__))
688#define ecb_unused ecb_attribute ((__unused__))
689#define ecb_const ecb_attribute ((__const__))
690#define ecb_pure ecb_attribute ((__pure__))
691
692#if ECB_GCC_VERSION(4,3)
693 #define ecb_artificial ecb_attribute ((__artificial__))
694 #define ecb_hot ecb_attribute ((__hot__))
695 #define ecb_cold ecb_attribute ((__cold__))
696#else
697 #define ecb_artificial
698 #define ecb_hot
699 #define ecb_cold
700#endif
701
702/* put around conditional expressions if you are very sure that the */
703/* expression is mostly true or mostly false. note that these return */
704/* booleans, not the expression. */
469#define expect_false(expr) expect ((expr) != 0, 0) 705#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
470#define expect_true(expr) expect ((expr) != 0, 1) 706#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
707/* for compatibility to the rest of the world */
708#define ecb_likely(expr) ecb_expect_true (expr)
709#define ecb_unlikely(expr) ecb_expect_false (expr)
710
711/* count trailing zero bits and count # of one bits */
712#if ECB_GCC_VERSION(3,4)
713 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
714 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
715 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
716 #define ecb_ctz32(x) __builtin_ctz (x)
717 #define ecb_ctz64(x) __builtin_ctzll (x)
718 #define ecb_popcount32(x) __builtin_popcount (x)
719 /* no popcountll */
720#else
721 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
722 ecb_function_ int
723 ecb_ctz32 (uint32_t x)
724 {
725 int r = 0;
726
727 x &= ~x + 1; /* this isolates the lowest bit */
728
729#if ECB_branchless_on_i386
730 r += !!(x & 0xaaaaaaaa) << 0;
731 r += !!(x & 0xcccccccc) << 1;
732 r += !!(x & 0xf0f0f0f0) << 2;
733 r += !!(x & 0xff00ff00) << 3;
734 r += !!(x & 0xffff0000) << 4;
735#else
736 if (x & 0xaaaaaaaa) r += 1;
737 if (x & 0xcccccccc) r += 2;
738 if (x & 0xf0f0f0f0) r += 4;
739 if (x & 0xff00ff00) r += 8;
740 if (x & 0xffff0000) r += 16;
741#endif
742
743 return r;
744 }
745
746 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
747 ecb_function_ int
748 ecb_ctz64 (uint64_t x)
749 {
750 int shift = x & 0xffffffffU ? 0 : 32;
751 return ecb_ctz32 (x >> shift) + shift;
752 }
753
754 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
755 ecb_function_ int
756 ecb_popcount32 (uint32_t x)
757 {
758 x -= (x >> 1) & 0x55555555;
759 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
760 x = ((x >> 4) + x) & 0x0f0f0f0f;
761 x *= 0x01010101;
762
763 return x >> 24;
764 }
765
766 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
767 ecb_function_ int ecb_ld32 (uint32_t x)
768 {
769 int r = 0;
770
771 if (x >> 16) { x >>= 16; r += 16; }
772 if (x >> 8) { x >>= 8; r += 8; }
773 if (x >> 4) { x >>= 4; r += 4; }
774 if (x >> 2) { x >>= 2; r += 2; }
775 if (x >> 1) { r += 1; }
776
777 return r;
778 }
779
780 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
781 ecb_function_ int ecb_ld64 (uint64_t x)
782 {
783 int r = 0;
784
785 if (x >> 32) { x >>= 32; r += 32; }
786
787 return r + ecb_ld32 (x);
788 }
789#endif
790
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
793{
794 return ( (x * 0x0802U & 0x22110U)
795 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
796}
797
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
800{
801 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
802 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
803 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
804 x = ( x >> 8 ) | ( x << 8);
805
806 return x;
807}
808
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
811{
812 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
813 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
814 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
815 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
816 x = ( x >> 16 ) | ( x << 16);
817
818 return x;
819}
820
821/* popcount64 is only available on 64 bit cpus as gcc builtin */
822/* so for this version we are lazy */
823ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
824ecb_function_ int
825ecb_popcount64 (uint64_t x)
826{
827 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
828}
829
830ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
831ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
832ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
833ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
834ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
835ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
836ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
837ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
838
839ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
840ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
841ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
842ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
843ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
844ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
845ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
846ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
847
848#if ECB_GCC_VERSION(4,3)
849 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
850 #define ecb_bswap32(x) __builtin_bswap32 (x)
851 #define ecb_bswap64(x) __builtin_bswap64 (x)
852#else
853 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
854 ecb_function_ uint16_t
855 ecb_bswap16 (uint16_t x)
856 {
857 return ecb_rotl16 (x, 8);
858 }
859
860 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
861 ecb_function_ uint32_t
862 ecb_bswap32 (uint32_t x)
863 {
864 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
865 }
866
867 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
868 ecb_function_ uint64_t
869 ecb_bswap64 (uint64_t x)
870 {
871 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
872 }
873#endif
874
875#if ECB_GCC_VERSION(4,5)
876 #define ecb_unreachable() __builtin_unreachable ()
877#else
878 /* this seems to work fine, but gcc always emits a warning for it :/ */
879 ecb_inline void ecb_unreachable (void) ecb_noreturn;
880 ecb_inline void ecb_unreachable (void) { }
881#endif
882
883/* try to tell the compiler that some condition is definitely true */
884#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0)
885
886ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
887ecb_inline unsigned char
888ecb_byteorder_helper (void)
889{
890 const uint32_t u = 0x11223344;
891 return *(unsigned char *)&u;
892}
893
894ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
895ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
896ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
897ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
898
899#if ECB_GCC_VERSION(3,0) || ECB_C99
900 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
901#else
902 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
903#endif
904
905#if __cplusplus
906 template<typename T>
907 static inline T ecb_div_rd (T val, T div)
908 {
909 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
910 }
911 template<typename T>
912 static inline T ecb_div_ru (T val, T div)
913 {
914 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
915 }
916#else
917 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
918 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
919#endif
920
921#if ecb_cplusplus_does_not_suck
922 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
923 template<typename T, int N>
924 static inline int ecb_array_length (const T (&arr)[N])
925 {
926 return N;
927 }
928#else
929 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
930#endif
931
932#endif
933
934/* ECB.H END */
935
936#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
937/* if your architecture doesn't need memory fences, e.g. because it is
938 * single-cpu/core, or if you use libev in a project that doesn't use libev
939 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
940 * libev, in which cases the memory fences become nops.
941 * alternatively, you can remove this #error and link against libpthread,
942 * which will then provide the memory fences.
943 */
944# error "memory fences not defined for your architecture, please report"
945#endif
946
947#ifndef ECB_MEMORY_FENCE
948# define ECB_MEMORY_FENCE do { } while (0)
949# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
950# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
951#endif
952
953#define expect_false(cond) ecb_expect_false (cond)
954#define expect_true(cond) ecb_expect_true (cond)
955#define noinline ecb_noinline
956
471#define inline_size static inline 957#define inline_size ecb_inline
472 958
473#if EV_FEATURE_CODE 959#if EV_FEATURE_CODE
474# define inline_speed static inline 960# define inline_speed ecb_inline
475#else 961#else
476# define inline_speed static noinline 962# define inline_speed static noinline
477#endif 963#endif
478 964
479#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
494#define ev_active(w) ((W)(w))->active 980#define ev_active(w) ((W)(w))->active
495#define ev_at(w) ((WT)(w))->at 981#define ev_at(w) ((WT)(w))->at
496 982
497#if EV_USE_REALTIME 983#if EV_USE_REALTIME
498/* sig_atomic_t is used to avoid per-thread variables or locking but still */ 984/* sig_atomic_t is used to avoid per-thread variables or locking but still */
499/* giving it a reasonably high chance of working on typical architetcures */ 985/* giving it a reasonably high chance of working on typical architectures */
500static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ 986static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */
501#endif 987#endif
502 988
503#if EV_USE_MONOTONIC 989#if EV_USE_MONOTONIC
504static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ 990static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */
… …
518# include "ev_win32.c" 1004# include "ev_win32.c"
519#endif 1005#endif
520 1006
521/*****************************************************************************/ 1007/*****************************************************************************/
522 1008
1009/* define a suitable floor function (only used by periodics atm) */
1010
1011#if EV_USE_FLOOR
1012# include <math.h>
1013# define ev_floor(v) floor (v)
1014#else
1015
1016#include <float.h>
1017
1018/* a floor() replacement function, should be independent of ev_tstamp type */
1019static ev_tstamp noinline
1020ev_floor (ev_tstamp v)
1021{
1022 /* the choice of shift factor is not terribly important */
1023#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1024 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1025#else
1026 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1027#endif
1028
1029 /* argument too large for an unsigned long? */
1030 if (expect_false (v >= shift))
1031 {
1032 ev_tstamp f;
1033
1034 if (v == v - 1.)
1035 return v; /* very large number */
1036
1037 f = shift * ev_floor (v * (1. / shift));
1038 return f + ev_floor (v - f);
1039 }
1040
1041 /* special treatment for negative args? */
1042 if (expect_false (v < 0.))
1043 {
1044 ev_tstamp f = -ev_floor (-v);
1045
1046 return f - (f == v ? 0 : 1);
1047 }
1048
1049 /* fits into an unsigned long */
1050 return (unsigned long)v;
1051}
1052
1053#endif
1054
1055/*****************************************************************************/
1056
1057#ifdef __linux
1058# include <sys/utsname.h>
1059#endif
1060
1061static unsigned int noinline ecb_cold
1062ev_linux_version (void)
1063{
1064#ifdef __linux
1065 unsigned int v = 0;
1066 struct utsname buf;
1067 int i;
1068 char *p = buf.release;
1069
1070 if (uname (&buf))
1071 return 0;
1072
1073 for (i = 3+1; --i; )
1074 {
1075 unsigned int c = 0;
1076
1077 for (;;)
1078 {
1079 if (*p >= '0' && *p <= '9')
1080 c = c * 10 + *p++ - '0';
1081 else
1082 {
1083 p += *p == '.';
1084 break;
1085 }
1086 }
1087
1088 v = (v << 8) | c;
1089 }
1090
1091 return v;
1092#else
1093 return 0;
1094#endif
1095}
1096
1097/*****************************************************************************/
1098
523#if EV_AVOID_STDIO 1099#if EV_AVOID_STDIO
524static void noinline 1100static void noinline ecb_cold
525ev_printerr (const char *msg) 1101ev_printerr (const char *msg)
526{ 1102{
527 write (STDERR_FILENO, msg, strlen (msg)); 1103 write (STDERR_FILENO, msg, strlen (msg));
528} 1104}
529#endif 1105#endif
530 1106
531static void (*syserr_cb)(const char *msg); 1107static void (*syserr_cb)(const char *msg) EV_THROW;
532 1108
533void 1109void ecb_cold
534ev_set_syserr_cb (void (*cb)(const char *msg)) 1110ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
535{ 1111{
536 syserr_cb = cb; 1112 syserr_cb = cb;
537} 1113}
538 1114
539static void noinline 1115static void noinline ecb_cold
540ev_syserr (const char *msg) 1116ev_syserr (const char *msg)
541{ 1117{
542 if (!msg) 1118 if (!msg)
543 msg = "(libev) system error"; 1119 msg = "(libev) system error";
544 1120
545 if (syserr_cb) 1121 if (syserr_cb)
546 syserr_cb (msg); 1122 syserr_cb (msg);
547 else 1123 else
548 { 1124 {
549#if EV_AVOID_STDIO 1125#if EV_AVOID_STDIO
550 const char *err = strerror (errno);
551
552 ev_printerr (msg); 1126 ev_printerr (msg);
553 ev_printerr (": "); 1127 ev_printerr (": ");
554 ev_printerr (err); 1128 ev_printerr (strerror (errno));
555 ev_printerr ("\n"); 1129 ev_printerr ("\n");
556#else 1130#else
557 perror (msg); 1131 perror (msg);
558#endif 1132#endif
559 abort (); 1133 abort ();
560 } 1134 }
561} 1135}
562 1136
563static void * 1137static void *
564ev_realloc_emul (void *ptr, long size) 1138ev_realloc_emul (void *ptr, long size) EV_THROW
565{ 1139{
566#if __GLIBC__ 1140#if __GLIBC__
567 return realloc (ptr, size); 1141 return realloc (ptr, size);
568#else 1142#else
569 /* some systems, notably openbsd and darwin, fail to properly 1143 /* some systems, notably openbsd and darwin, fail to properly
… …
577 free (ptr); 1151 free (ptr);
578 return 0; 1152 return 0;
579#endif 1153#endif
580} 1154}
581 1155
582static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
583 1157
584void 1158void ecb_cold
585ev_set_allocator (void *(*cb)(void *ptr, long size)) 1159ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
586{ 1160{
587 alloc = cb; 1161 alloc = cb;
588} 1162}
589 1163
590inline_speed void * 1164inline_speed void *
… …
593 ptr = alloc (ptr, size); 1167 ptr = alloc (ptr, size);
594 1168
595 if (!ptr && size) 1169 if (!ptr && size)
596 { 1170 {
597#if EV_AVOID_STDIO 1171#if EV_AVOID_STDIO
598 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1172 ev_printerr ("(libev) memory allocation failed, aborting.\n");
599#else 1173#else
600 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1174 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
601#endif 1175#endif
602 abort (); 1176 abort ();
603 } 1177 }
604 1178
605 return ptr; 1179 return ptr;
… …
622 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1196 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
623 unsigned char unused; 1197 unsigned char unused;
624#if EV_USE_EPOLL 1198#if EV_USE_EPOLL
625 unsigned int egen; /* generation counter to counter epoll bugs */ 1199 unsigned int egen; /* generation counter to counter epoll bugs */
626#endif 1200#endif
627#if EV_SELECT_IS_WINSOCKET 1201#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
628 SOCKET handle; 1202 SOCKET handle;
1203#endif
1204#if EV_USE_IOCP
1205 OVERLAPPED or, ow;
629#endif 1206#endif
630} ANFD; 1207} ANFD;
631 1208
632/* stores the pending event set for a given watcher */ 1209/* stores the pending event set for a given watcher */
633typedef struct 1210typedef struct
… …
675 #undef VAR 1252 #undef VAR
676 }; 1253 };
677 #include "ev_wrap.h" 1254 #include "ev_wrap.h"
678 1255
679 static struct ev_loop default_loop_struct; 1256 static struct ev_loop default_loop_struct;
680 struct ev_loop *ev_default_loop_ptr; 1257 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
681 1258
682#else 1259#else
683 1260
684 ev_tstamp ev_rt_now; 1261 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
685 #define VAR(name,decl) static decl; 1262 #define VAR(name,decl) static decl;
686 #include "ev_vars.h" 1263 #include "ev_vars.h"
687 #undef VAR 1264 #undef VAR
688 1265
689 static int ev_default_loop_ptr; 1266 static int ev_default_loop_ptr;
… …
698# define EV_RELEASE_CB (void)0 1275# define EV_RELEASE_CB (void)0
699# define EV_ACQUIRE_CB (void)0 1276# define EV_ACQUIRE_CB (void)0
700# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 1277# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
701#endif 1278#endif
702 1279
703#define EVUNLOOP_RECURSE 0x80 1280#define EVBREAK_RECURSE 0x80
704 1281
705/*****************************************************************************/ 1282/*****************************************************************************/
706 1283
707#ifndef EV_HAVE_EV_TIME 1284#ifndef EV_HAVE_EV_TIME
708ev_tstamp 1285ev_tstamp
709ev_time (void) 1286ev_time (void) EV_THROW
710{ 1287{
711#if EV_USE_REALTIME 1288#if EV_USE_REALTIME
712 if (expect_true (have_realtime)) 1289 if (expect_true (have_realtime))
713 { 1290 {
714 struct timespec ts; 1291 struct timespec ts;
… …
738 return ev_time (); 1315 return ev_time ();
739} 1316}
740 1317
741#if EV_MULTIPLICITY 1318#if EV_MULTIPLICITY
742ev_tstamp 1319ev_tstamp
743ev_now (EV_P) 1320ev_now (EV_P) EV_THROW
744{ 1321{
745 return ev_rt_now; 1322 return ev_rt_now;
746} 1323}
747#endif 1324#endif
748 1325
749void 1326void
750ev_sleep (ev_tstamp delay) 1327ev_sleep (ev_tstamp delay) EV_THROW
751{ 1328{
752 if (delay > 0.) 1329 if (delay > 0.)
753 { 1330 {
754#if EV_USE_NANOSLEEP 1331#if EV_USE_NANOSLEEP
755 struct timespec ts; 1332 struct timespec ts;
756 1333
757 ts.tv_sec = (time_t)delay; 1334 EV_TS_SET (ts, delay);
758 ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9);
759
760 nanosleep (&ts, 0); 1335 nanosleep (&ts, 0);
761#elif defined(_WIN32) 1336#elif defined _WIN32
762 Sleep ((unsigned long)(delay * 1e3)); 1337 Sleep ((unsigned long)(delay * 1e3));
763#else 1338#else
764 struct timeval tv; 1339 struct timeval tv;
765 1340
766 tv.tv_sec = (time_t)delay;
767 tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6);
768
769 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1341 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
770 /* something not guaranteed by newer posix versions, but guaranteed */ 1342 /* something not guaranteed by newer posix versions, but guaranteed */
771 /* by older ones */ 1343 /* by older ones */
1344 EV_TV_SET (tv, delay);
772 select (0, 0, 0, 0, &tv); 1345 select (0, 0, 0, 0, &tv);
773#endif 1346#endif
774 } 1347 }
775} 1348}
776 1349
777/*****************************************************************************/ 1350/*****************************************************************************/
778 1351
779#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ 1352#define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */
780 1353
781/* find a suitable new size for the given array, */ 1354/* find a suitable new size for the given array, */
782/* hopefully by rounding to a ncie-to-malloc size */ 1355/* hopefully by rounding to a nice-to-malloc size */
783inline_size int 1356inline_size int
784array_nextsize (int elem, int cur, int cnt) 1357array_nextsize (int elem, int cur, int cnt)
785{ 1358{
786 int ncur = cur + 1; 1359 int ncur = cur + 1;
787 1360
788 do 1361 do
789 ncur <<= 1; 1362 ncur <<= 1;
790 while (cnt > ncur); 1363 while (cnt > ncur);
791 1364
792 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1365 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
793 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1366 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
794 { 1367 {
795 ncur *= elem; 1368 ncur *= elem;
796 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1369 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
797 ncur = ncur - sizeof (void *) * 4; 1370 ncur = ncur - sizeof (void *) * 4;
… …
799 } 1372 }
800 1373
801 return ncur; 1374 return ncur;
802} 1375}
803 1376
804static noinline void * 1377static void * noinline ecb_cold
805array_realloc (int elem, void *base, int *cur, int cnt) 1378array_realloc (int elem, void *base, int *cur, int cnt)
806{ 1379{
807 *cur = array_nextsize (elem, *cur, cnt); 1380 *cur = array_nextsize (elem, *cur, cnt);
808 return ev_realloc (base, elem * *cur); 1381 return ev_realloc (base, elem * *cur);
809} 1382}
… …
812 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1385 memset ((void *)(base), 0, sizeof (*(base)) * (count))
813 1386
814#define array_needsize(type,base,cur,cnt,init) \ 1387#define array_needsize(type,base,cur,cnt,init) \
815 if (expect_false ((cnt) > (cur))) \ 1388 if (expect_false ((cnt) > (cur))) \
816 { \ 1389 { \
817 int ocur_ = (cur); \ 1390 int ecb_unused ocur_ = (cur); \
818 (base) = (type *)array_realloc \ 1391 (base) = (type *)array_realloc \
819 (sizeof (type), (base), &(cur), (cnt)); \ 1392 (sizeof (type), (base), &(cur), (cnt)); \
820 init ((base) + (ocur_), (cur) - ocur_); \ 1393 init ((base) + (ocur_), (cur) - ocur_); \
821 } 1394 }
822 1395
… …
840pendingcb (EV_P_ ev_prepare *w, int revents) 1413pendingcb (EV_P_ ev_prepare *w, int revents)
841{ 1414{
842} 1415}
843 1416
844void noinline 1417void noinline
845ev_feed_event (EV_P_ void *w, int revents) 1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW
846{ 1419{
847 W w_ = (W)w; 1420 W w_ = (W)w;
848 int pri = ABSPRI (w_); 1421 int pri = ABSPRI (w_);
849 1422
850 if (expect_false (w_->pending)) 1423 if (expect_false (w_->pending))
… …
854 w_->pending = ++pendingcnt [pri]; 1427 w_->pending = ++pendingcnt [pri];
855 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1428 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
856 pendings [pri][w_->pending - 1].w = w_; 1429 pendings [pri][w_->pending - 1].w = w_;
857 pendings [pri][w_->pending - 1].events = revents; 1430 pendings [pri][w_->pending - 1].events = revents;
858 } 1431 }
1432
1433 pendingpri = NUMPRI - 1;
859} 1434}
860 1435
861inline_speed void 1436inline_speed void
862feed_reverse (EV_P_ W w) 1437feed_reverse (EV_P_ W w)
863{ 1438{
… …
909 if (expect_true (!anfd->reify)) 1484 if (expect_true (!anfd->reify))
910 fd_event_nocheck (EV_A_ fd, revents); 1485 fd_event_nocheck (EV_A_ fd, revents);
911} 1486}
912 1487
913void 1488void
914ev_feed_fd_event (EV_P_ int fd, int revents) 1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
915{ 1490{
916 if (fd >= 0 && fd < anfdmax) 1491 if (fd >= 0 && fd < anfdmax)
917 fd_event_nocheck (EV_A_ fd, revents); 1492 fd_event_nocheck (EV_A_ fd, revents);
918} 1493}
919 1494
… …
922inline_size void 1497inline_size void
923fd_reify (EV_P) 1498fd_reify (EV_P)
924{ 1499{
925 int i; 1500 int i;
926 1501
1502#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1503 for (i = 0; i < fdchangecnt; ++i)
1504 {
1505 int fd = fdchanges [i];
1506 ANFD *anfd = anfds + fd;
1507
1508 if (anfd->reify & EV__IOFDSET && anfd->head)
1509 {
1510 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
1511
1512 if (handle != anfd->handle)
1513 {
1514 unsigned long arg;
1515
1516 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
1517
1518 /* handle changed, but fd didn't - we need to do it in two steps */
1519 backend_modify (EV_A_ fd, anfd->events, 0);
1520 anfd->events = 0;
1521 anfd->handle = handle;
1522 }
1523 }
1524 }
1525#endif
1526
927 for (i = 0; i < fdchangecnt; ++i) 1527 for (i = 0; i < fdchangecnt; ++i)
928 { 1528 {
929 int fd = fdchanges [i]; 1529 int fd = fdchanges [i];
930 ANFD *anfd = anfds + fd; 1530 ANFD *anfd = anfds + fd;
931 ev_io *w; 1531 ev_io *w;
932 1532
933 unsigned char events = 0; 1533 unsigned char o_events = anfd->events;
1534 unsigned char o_reify = anfd->reify;
934 1535
935 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 1536 anfd->reify = 0;
936 events |= (unsigned char)w->events;
937 1537
938#if EV_SELECT_IS_WINSOCKET 1538 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
939 if (events)
940 { 1539 {
941 unsigned long arg; 1540 anfd->events = 0;
942 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); 1541
943 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); 1542 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1543 anfd->events |= (unsigned char)w->events;
1544
1545 if (o_events != anfd->events)
1546 o_reify = EV__IOFDSET; /* actually |= */
944 } 1547 }
945#endif
946 1548
947 { 1549 if (o_reify & EV__IOFDSET)
948 unsigned char o_events = anfd->events;
949 unsigned char o_reify = anfd->reify;
950
951 anfd->reify = 0;
952 anfd->events = events;
953
954 if (o_events != events || o_reify & EV__IOFDSET)
955 backend_modify (EV_A_ fd, o_events, events); 1550 backend_modify (EV_A_ fd, o_events, anfd->events);
956 }
957 } 1551 }
958 1552
959 fdchangecnt = 0; 1553 fdchangecnt = 0;
960} 1554}
961 1555
… …
973 fdchanges [fdchangecnt - 1] = fd; 1567 fdchanges [fdchangecnt - 1] = fd;
974 } 1568 }
975} 1569}
976 1570
977/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
978inline_speed void 1572inline_speed void ecb_cold
979fd_kill (EV_P_ int fd) 1573fd_kill (EV_P_ int fd)
980{ 1574{
981 ev_io *w; 1575 ev_io *w;
982 1576
983 while ((w = (ev_io *)anfds [fd].head)) 1577 while ((w = (ev_io *)anfds [fd].head))
… …
986 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1580 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
987 } 1581 }
988} 1582}
989 1583
990/* check whether the given fd is actually valid, for error recovery */ 1584/* check whether the given fd is actually valid, for error recovery */
991inline_size int 1585inline_size int ecb_cold
992fd_valid (int fd) 1586fd_valid (int fd)
993{ 1587{
994#ifdef _WIN32 1588#ifdef _WIN32
995 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
996#else 1590#else
997 return fcntl (fd, F_GETFD) != -1; 1591 return fcntl (fd, F_GETFD) != -1;
998#endif 1592#endif
999} 1593}
1000 1594
1001/* called on EBADF to verify fds */ 1595/* called on EBADF to verify fds */
1002static void noinline 1596static void noinline ecb_cold
1003fd_ebadf (EV_P) 1597fd_ebadf (EV_P)
1004{ 1598{
1005 int fd; 1599 int fd;
1006 1600
1007 for (fd = 0; fd < anfdmax; ++fd) 1601 for (fd = 0; fd < anfdmax; ++fd)
… …
1009 if (!fd_valid (fd) && errno == EBADF) 1603 if (!fd_valid (fd) && errno == EBADF)
1010 fd_kill (EV_A_ fd); 1604 fd_kill (EV_A_ fd);
1011} 1605}
1012 1606
1013/* called on ENOMEM in select/poll to kill some fds and retry */ 1607/* called on ENOMEM in select/poll to kill some fds and retry */
1014static void noinline 1608static void noinline ecb_cold
1015fd_enomem (EV_P) 1609fd_enomem (EV_P)
1016{ 1610{
1017 int fd; 1611 int fd;
1018 1612
1019 for (fd = anfdmax; fd--; ) 1613 for (fd = anfdmax; fd--; )
… …
1054} 1648}
1055 1649
1056/*****************************************************************************/ 1650/*****************************************************************************/
1057 1651
1058/* 1652/*
1059 * the heap functions want a real array index. array index 0 uis guaranteed to not 1653 * the heap functions want a real array index. array index 0 is guaranteed to not
1060 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives 1654 * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives
1061 * the branching factor of the d-tree. 1655 * the branching factor of the d-tree.
1062 */ 1656 */
1063 1657
1064/* 1658/*
… …
1214 1808
1215/*****************************************************************************/ 1809/*****************************************************************************/
1216 1810
1217#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1218 1812
1219static void noinline 1813static void noinline ecb_cold
1220evpipe_init (EV_P) 1814evpipe_init (EV_P)
1221{ 1815{
1222 if (!ev_is_active (&pipe_w)) 1816 if (!ev_is_active (&pipe_w))
1223 { 1817 {
1224# if EV_USE_EVENTFD 1818# if EV_USE_EVENTFD
… …
1246 ev_io_start (EV_A_ &pipe_w); 1840 ev_io_start (EV_A_ &pipe_w);
1247 ev_unref (EV_A); /* watcher should not keep loop alive */ 1841 ev_unref (EV_A); /* watcher should not keep loop alive */
1248 } 1842 }
1249} 1843}
1250 1844
1251inline_size void 1845inline_speed void
1252evpipe_write (EV_P_ EV_ATOMIC_T *flag) 1846evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1253{ 1847{
1254 if (!*flag) 1848 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
1849
1850 if (expect_true (*flag))
1851 return;
1852
1853 *flag = 1;
1854
1855 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1856
1857 pipe_write_skipped = 1;
1858
1859 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1860
1861 if (pipe_write_wanted)
1255 { 1862 {
1863 int old_errno;
1864
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1866
1256 int old_errno = errno; /* save errno because write might clobber it */ 1867 old_errno = errno; /* save errno because write will clobber it */
1257 char dummy;
1258
1259 *flag = 1;
1260 1868
1261#if EV_USE_EVENTFD 1869#if EV_USE_EVENTFD
1262 if (evfd >= 0) 1870 if (evfd >= 0)
1263 { 1871 {
1264 uint64_t counter = 1; 1872 uint64_t counter = 1;
1265 write (evfd, &counter, sizeof (uint64_t)); 1873 write (evfd, &counter, sizeof (uint64_t));
1266 } 1874 }
1267 else 1875 else
1268#endif 1876#endif
1877 {
1878#ifdef _WIN32
1879 WSABUF buf;
1880 DWORD sent;
1881 buf.buf = &buf;
1882 buf.len = 1;
1883 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1884#else
1269 write (evpipe [1], &dummy, 1); 1885 write (evpipe [1], &(evpipe [1]), 1);
1886#endif
1887 }
1270 1888
1271 errno = old_errno; 1889 errno = old_errno;
1272 } 1890 }
1273} 1891}
1274 1892
… …
1277static void 1895static void
1278pipecb (EV_P_ ev_io *iow, int revents) 1896pipecb (EV_P_ ev_io *iow, int revents)
1279{ 1897{
1280 int i; 1898 int i;
1281 1899
1900 if (revents & EV_READ)
1901 {
1282#if EV_USE_EVENTFD 1902#if EV_USE_EVENTFD
1283 if (evfd >= 0) 1903 if (evfd >= 0)
1284 { 1904 {
1285 uint64_t counter; 1905 uint64_t counter;
1286 read (evfd, &counter, sizeof (uint64_t)); 1906 read (evfd, &counter, sizeof (uint64_t));
1287 } 1907 }
1288 else 1908 else
1289#endif 1909#endif
1290 { 1910 {
1291 char dummy; 1911 char dummy[4];
1912#ifdef _WIN32
1913 WSABUF buf;
1914 DWORD recvd;
1915 DWORD flags = 0;
1916 buf.buf = dummy;
1917 buf.len = sizeof (dummy);
1918 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1919#else
1292 read (evpipe [0], &dummy, 1); 1920 read (evpipe [0], &dummy, sizeof (dummy));
1921#endif
1922 }
1293 } 1923 }
1294 1924
1925 pipe_write_skipped = 0;
1926
1927 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1928
1929#if EV_SIGNAL_ENABLE
1295 if (sig_pending) 1930 if (sig_pending)
1296 { 1931 {
1297 sig_pending = 0; 1932 sig_pending = 0;
1933
1934 ECB_MEMORY_FENCE_RELEASE;
1298 1935
1299 for (i = EV_NSIG - 1; i--; ) 1936 for (i = EV_NSIG - 1; i--; )
1300 if (expect_false (signals [i].pending)) 1937 if (expect_false (signals [i].pending))
1301 ev_feed_signal_event (EV_A_ i + 1); 1938 ev_feed_signal_event (EV_A_ i + 1);
1302 } 1939 }
1940#endif
1303 1941
1304#if EV_ASYNC_ENABLE 1942#if EV_ASYNC_ENABLE
1305 if (async_pending) 1943 if (async_pending)
1306 { 1944 {
1307 async_pending = 0; 1945 async_pending = 0;
1946
1947 ECB_MEMORY_FENCE_RELEASE;
1308 1948
1309 for (i = asynccnt; i--; ) 1949 for (i = asynccnt; i--; )
1310 if (asyncs [i]->sent) 1950 if (asyncs [i]->sent)
1311 { 1951 {
1312 asyncs [i]->sent = 0; 1952 asyncs [i]->sent = 0;
… …
1316#endif 1956#endif
1317} 1957}
1318 1958
1319/*****************************************************************************/ 1959/*****************************************************************************/
1320 1960
1961void
1962ev_feed_signal (int signum) EV_THROW
1963{
1964#if EV_MULTIPLICITY
1965 EV_P = signals [signum - 1].loop;
1966
1967 if (!EV_A)
1968 return;
1969#endif
1970
1971 if (!ev_active (&pipe_w))
1972 return;
1973
1974 signals [signum - 1].pending = 1;
1975 evpipe_write (EV_A_ &sig_pending);
1976}
1977
1321static void 1978static void
1322ev_sighandler (int signum) 1979ev_sighandler (int signum)
1323{ 1980{
1324#if EV_MULTIPLICITY
1325 EV_P = signals [signum - 1].loop;
1326#endif
1327
1328#ifdef _WIN32 1981#ifdef _WIN32
1329 signal (signum, ev_sighandler); 1982 signal (signum, ev_sighandler);
1330#endif 1983#endif
1331 1984
1332 signals [signum - 1].pending = 1; 1985 ev_feed_signal (signum);
1333 evpipe_write (EV_A_ &sig_pending);
1334} 1986}
1335 1987
1336void noinline 1988void noinline
1337ev_feed_signal_event (EV_P_ int signum) 1989ev_feed_signal_event (EV_P_ int signum) EV_THROW
1338{ 1990{
1339 WL w; 1991 WL w;
1340 1992
1341 if (expect_false (signum <= 0 || signum > EV_NSIG)) 1993 if (expect_false (signum <= 0 || signum > EV_NSIG))
1342 return; 1994 return;
… …
1438 2090
1439#endif 2091#endif
1440 2092
1441/*****************************************************************************/ 2093/*****************************************************************************/
1442 2094
2095#if EV_USE_IOCP
2096# include "ev_iocp.c"
2097#endif
1443#if EV_USE_PORT 2098#if EV_USE_PORT
1444# include "ev_port.c" 2099# include "ev_port.c"
1445#endif 2100#endif
1446#if EV_USE_KQUEUE 2101#if EV_USE_KQUEUE
1447# include "ev_kqueue.c" 2102# include "ev_kqueue.c"
… …
1454#endif 2109#endif
1455#if EV_USE_SELECT 2110#if EV_USE_SELECT
1456# include "ev_select.c" 2111# include "ev_select.c"
1457#endif 2112#endif
1458 2113
1459int 2114int ecb_cold
1460ev_version_major (void) 2115ev_version_major (void) EV_THROW
1461{ 2116{
1462 return EV_VERSION_MAJOR; 2117 return EV_VERSION_MAJOR;
1463} 2118}
1464 2119
1465int 2120int ecb_cold
1466ev_version_minor (void) 2121ev_version_minor (void) EV_THROW
1467{ 2122{
1468 return EV_VERSION_MINOR; 2123 return EV_VERSION_MINOR;
1469} 2124}
1470 2125
1471/* return true if we are running with elevated privileges and should ignore env variables */ 2126/* return true if we are running with elevated privileges and should ignore env variables */
1472int inline_size 2127int inline_size ecb_cold
1473enable_secure (void) 2128enable_secure (void)
1474{ 2129{
1475#ifdef _WIN32 2130#ifdef _WIN32
1476 return 0; 2131 return 0;
1477#else 2132#else
1478 return getuid () != geteuid () 2133 return getuid () != geteuid ()
1479 || getgid () != getegid (); 2134 || getgid () != getegid ();
1480#endif 2135#endif
1481} 2136}
1482 2137
1483unsigned int 2138unsigned int ecb_cold
1484ev_supported_backends (void) 2139ev_supported_backends (void) EV_THROW
1485{ 2140{
1486 unsigned int flags = 0; 2141 unsigned int flags = 0;
1487 2142
1488 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2143 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1489 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2144 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1492 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2147 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1493 2148
1494 return flags; 2149 return flags;
1495} 2150}
1496 2151
1497unsigned int 2152unsigned int ecb_cold
1498ev_recommended_backends (void) 2153ev_recommended_backends (void) EV_THROW
1499{ 2154{
1500 unsigned int flags = ev_supported_backends (); 2155 unsigned int flags = ev_supported_backends ();
1501 2156
1502#ifndef __NetBSD__ 2157#ifndef __NetBSD__
1503 /* kqueue is borked on everything but netbsd apparently */ 2158 /* kqueue is borked on everything but netbsd apparently */
… …
1507#ifdef __APPLE__ 2162#ifdef __APPLE__
1508 /* only select works correctly on that "unix-certified" platform */ 2163 /* only select works correctly on that "unix-certified" platform */
1509 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ 2164 flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */
1510 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ 2165 flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */
1511#endif 2166#endif
2167#ifdef __FreeBSD__
2168 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2169#endif
1512 2170
1513 return flags; 2171 return flags;
1514} 2172}
1515 2173
2174unsigned int ecb_cold
2175ev_embeddable_backends (void) EV_THROW
2176{
2177 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2178
2179 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2180 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2181 flags &= ~EVBACKEND_EPOLL;
2182
2183 return flags;
2184}
2185
1516unsigned int 2186unsigned int
1517ev_embeddable_backends (void)
1518{
1519 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1520
1521 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1522 /* please fix it and tell me how to detect the fix */
1523 flags &= ~EVBACKEND_EPOLL;
1524
1525 return flags;
1526}
1527
1528unsigned int
1529ev_backend (EV_P) 2187ev_backend (EV_P) EV_THROW
1530{ 2188{
1531 return backend; 2189 return backend;
1532} 2190}
1533 2191
1534#if EV_FEATURE_API 2192#if EV_FEATURE_API
1535unsigned int 2193unsigned int
1536ev_iteration (EV_P) 2194ev_iteration (EV_P) EV_THROW
1537{ 2195{
1538 return loop_count; 2196 return loop_count;
1539} 2197}
1540 2198
1541unsigned int 2199unsigned int
1542ev_depth (EV_P) 2200ev_depth (EV_P) EV_THROW
1543{ 2201{
1544 return loop_depth; 2202 return loop_depth;
1545} 2203}
1546 2204
1547void 2205void
1548ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2206ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1549{ 2207{
1550 io_blocktime = interval; 2208 io_blocktime = interval;
1551} 2209}
1552 2210
1553void 2211void
1554ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2212ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1555{ 2213{
1556 timeout_blocktime = interval; 2214 timeout_blocktime = interval;
1557} 2215}
1558 2216
1559void 2217void
1560ev_set_userdata (EV_P_ void *data) 2218ev_set_userdata (EV_P_ void *data) EV_THROW
1561{ 2219{
1562 userdata = data; 2220 userdata = data;
1563} 2221}
1564 2222
1565void * 2223void *
1566ev_userdata (EV_P) 2224ev_userdata (EV_P) EV_THROW
1567{ 2225{
1568 return userdata; 2226 return userdata;
1569} 2227}
1570 2228
2229void
1571void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2230ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW
1572{ 2231{
1573 invoke_cb = invoke_pending_cb; 2232 invoke_cb = invoke_pending_cb;
1574} 2233}
1575 2234
2235void
1576void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2236ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1577{ 2237{
1578 release_cb = release; 2238 release_cb = release;
1579 acquire_cb = acquire; 2239 acquire_cb = acquire;
1580} 2240}
1581#endif 2241#endif
1582 2242
1583/* initialise a loop structure, must be zero-initialised */ 2243/* initialise a loop structure, must be zero-initialised */
1584static void noinline 2244static void noinline ecb_cold
1585loop_init (EV_P_ unsigned int flags) 2245loop_init (EV_P_ unsigned int flags) EV_THROW
1586{ 2246{
1587 if (!backend) 2247 if (!backend)
1588 { 2248 {
2249 origflags = flags;
2250
1589#if EV_USE_REALTIME 2251#if EV_USE_REALTIME
1590 if (!have_realtime) 2252 if (!have_realtime)
1591 { 2253 {
1592 struct timespec ts; 2254 struct timespec ts;
1593 2255
… …
1615 if (!(flags & EVFLAG_NOENV) 2277 if (!(flags & EVFLAG_NOENV)
1616 && !enable_secure () 2278 && !enable_secure ()
1617 && getenv ("LIBEV_FLAGS")) 2279 && getenv ("LIBEV_FLAGS"))
1618 flags = atoi (getenv ("LIBEV_FLAGS")); 2280 flags = atoi (getenv ("LIBEV_FLAGS"));
1619 2281
1620 ev_rt_now = ev_time (); 2282 ev_rt_now = ev_time ();
1621 mn_now = get_clock (); 2283 mn_now = get_clock ();
1622 now_floor = mn_now; 2284 now_floor = mn_now;
1623 rtmn_diff = ev_rt_now - mn_now; 2285 rtmn_diff = ev_rt_now - mn_now;
1624#if EV_FEATURE_API 2286#if EV_FEATURE_API
1625 invoke_cb = ev_invoke_pending; 2287 invoke_cb = ev_invoke_pending;
1626#endif 2288#endif
1627 2289
1628 io_blocktime = 0.; 2290 io_blocktime = 0.;
1629 timeout_blocktime = 0.; 2291 timeout_blocktime = 0.;
1630 backend = 0; 2292 backend = 0;
1631 backend_fd = -1; 2293 backend_fd = -1;
1632 sig_pending = 0; 2294 sig_pending = 0;
1633#if EV_ASYNC_ENABLE 2295#if EV_ASYNC_ENABLE
1634 async_pending = 0; 2296 async_pending = 0;
1635#endif 2297#endif
2298 pipe_write_skipped = 0;
2299 pipe_write_wanted = 0;
1636#if EV_USE_INOTIFY 2300#if EV_USE_INOTIFY
1637 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2301 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1638#endif 2302#endif
1639#if EV_USE_SIGNALFD 2303#if EV_USE_SIGNALFD
1640 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2304 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1641#endif 2305#endif
1642 2306
1643 if (!(flags & 0x0000ffffU)) 2307 if (!(flags & EVBACKEND_MASK))
1644 flags |= ev_recommended_backends (); 2308 flags |= ev_recommended_backends ();
1645 2309
2310#if EV_USE_IOCP
2311 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2312#endif
1646#if EV_USE_PORT 2313#if EV_USE_PORT
1647 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2314 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1648#endif 2315#endif
1649#if EV_USE_KQUEUE 2316#if EV_USE_KQUEUE
1650 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2317 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1667#endif 2334#endif
1668 } 2335 }
1669} 2336}
1670 2337
1671/* free up a loop structure */ 2338/* free up a loop structure */
1672static void noinline 2339void ecb_cold
1673loop_destroy (EV_P) 2340ev_loop_destroy (EV_P)
1674{ 2341{
1675 int i; 2342 int i;
2343
2344#if EV_MULTIPLICITY
2345 /* mimic free (0) */
2346 if (!EV_A)
2347 return;
2348#endif
2349
2350#if EV_CLEANUP_ENABLE
2351 /* queue cleanup watchers (and execute them) */
2352 if (expect_false (cleanupcnt))
2353 {
2354 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2355 EV_INVOKE_PENDING;
2356 }
2357#endif
2358
2359#if EV_CHILD_ENABLE
2360 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2361 {
2362 ev_ref (EV_A); /* child watcher */
2363 ev_signal_stop (EV_A_ &childev);
2364 }
2365#endif
1676 2366
1677 if (ev_is_active (&pipe_w)) 2367 if (ev_is_active (&pipe_w))
1678 { 2368 {
1679 /*ev_ref (EV_A);*/ 2369 /*ev_ref (EV_A);*/
1680 /*ev_io_stop (EV_A_ &pipe_w);*/ 2370 /*ev_io_stop (EV_A_ &pipe_w);*/
… …
1702#endif 2392#endif
1703 2393
1704 if (backend_fd >= 0) 2394 if (backend_fd >= 0)
1705 close (backend_fd); 2395 close (backend_fd);
1706 2396
2397#if EV_USE_IOCP
2398 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2399#endif
1707#if EV_USE_PORT 2400#if EV_USE_PORT
1708 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 2401 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1709#endif 2402#endif
1710#if EV_USE_KQUEUE 2403#if EV_USE_KQUEUE
1711 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 2404 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1738 array_free (periodic, EMPTY); 2431 array_free (periodic, EMPTY);
1739#endif 2432#endif
1740#if EV_FORK_ENABLE 2433#if EV_FORK_ENABLE
1741 array_free (fork, EMPTY); 2434 array_free (fork, EMPTY);
1742#endif 2435#endif
2436#if EV_CLEANUP_ENABLE
2437 array_free (cleanup, EMPTY);
2438#endif
1743 array_free (prepare, EMPTY); 2439 array_free (prepare, EMPTY);
1744 array_free (check, EMPTY); 2440 array_free (check, EMPTY);
1745#if EV_ASYNC_ENABLE 2441#if EV_ASYNC_ENABLE
1746 array_free (async, EMPTY); 2442 array_free (async, EMPTY);
1747#endif 2443#endif
1748 2444
1749 backend = 0; 2445 backend = 0;
2446
2447#if EV_MULTIPLICITY
2448 if (ev_is_default_loop (EV_A))
2449#endif
2450 ev_default_loop_ptr = 0;
2451#if EV_MULTIPLICITY
2452 else
2453 ev_free (EV_A);
2454#endif
1750} 2455}
1751 2456
1752#if EV_USE_INOTIFY 2457#if EV_USE_INOTIFY
1753inline_size void infy_fork (EV_P); 2458inline_size void infy_fork (EV_P);
1754#endif 2459#endif
… …
1769 infy_fork (EV_A); 2474 infy_fork (EV_A);
1770#endif 2475#endif
1771 2476
1772 if (ev_is_active (&pipe_w)) 2477 if (ev_is_active (&pipe_w))
1773 { 2478 {
1774 /* this "locks" the handlers against writing to the pipe */ 2479 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1775 /* while we modify the fd vars */
1776 sig_pending = 1;
1777#if EV_ASYNC_ENABLE
1778 async_pending = 1;
1779#endif
1780 2480
1781 ev_ref (EV_A); 2481 ev_ref (EV_A);
1782 ev_io_stop (EV_A_ &pipe_w); 2482 ev_io_stop (EV_A_ &pipe_w);
1783 2483
1784#if EV_USE_EVENTFD 2484#if EV_USE_EVENTFD
… …
1802 postfork = 0; 2502 postfork = 0;
1803} 2503}
1804 2504
1805#if EV_MULTIPLICITY 2505#if EV_MULTIPLICITY
1806 2506
1807struct ev_loop * 2507struct ev_loop * ecb_cold
1808ev_loop_new (unsigned int flags) 2508ev_loop_new (unsigned int flags) EV_THROW
1809{ 2509{
1810 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2510 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1811 2511
1812 memset (EV_A, 0, sizeof (struct ev_loop)); 2512 memset (EV_A, 0, sizeof (struct ev_loop));
1813 loop_init (EV_A_ flags); 2513 loop_init (EV_A_ flags);
1814 2514
1815 if (ev_backend (EV_A)) 2515 if (ev_backend (EV_A))
1816 return EV_A; 2516 return EV_A;
1817 2517
2518 ev_free (EV_A);
1818 return 0; 2519 return 0;
1819} 2520}
1820 2521
1821void
1822ev_loop_destroy (EV_P)
1823{
1824 loop_destroy (EV_A);
1825 ev_free (loop);
1826}
1827
1828void
1829ev_loop_fork (EV_P)
1830{
1831 postfork = 1; /* must be in line with ev_default_fork */
1832}
1833#endif /* multiplicity */ 2522#endif /* multiplicity */
1834 2523
1835#if EV_VERIFY 2524#if EV_VERIFY
1836static void noinline 2525static void noinline ecb_cold
1837verify_watcher (EV_P_ W w) 2526verify_watcher (EV_P_ W w)
1838{ 2527{
1839 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2528 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1840 2529
1841 if (w->pending) 2530 if (w->pending)
1842 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2531 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1843} 2532}
1844 2533
1845static void noinline 2534static void noinline ecb_cold
1846verify_heap (EV_P_ ANHE *heap, int N) 2535verify_heap (EV_P_ ANHE *heap, int N)
1847{ 2536{
1848 int i; 2537 int i;
1849 2538
1850 for (i = HEAP0; i < N + HEAP0; ++i) 2539 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1855 2544
1856 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2545 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1857 } 2546 }
1858} 2547}
1859 2548
1860static void noinline 2549static void noinline ecb_cold
1861array_verify (EV_P_ W *ws, int cnt) 2550array_verify (EV_P_ W *ws, int cnt)
1862{ 2551{
1863 while (cnt--) 2552 while (cnt--)
1864 { 2553 {
1865 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2554 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
1867 } 2556 }
1868} 2557}
1869#endif 2558#endif
1870 2559
1871#if EV_FEATURE_API 2560#if EV_FEATURE_API
1872void 2561void ecb_cold
1873ev_verify (EV_P) 2562ev_verify (EV_P) EV_THROW
1874{ 2563{
1875#if EV_VERIFY 2564#if EV_VERIFY
1876 int i; 2565 int i;
1877 WL w; 2566 WL w, w2;
1878 2567
1879 assert (activecnt >= -1); 2568 assert (activecnt >= -1);
1880 2569
1881 assert (fdchangemax >= fdchangecnt); 2570 assert (fdchangemax >= fdchangecnt);
1882 for (i = 0; i < fdchangecnt; ++i) 2571 for (i = 0; i < fdchangecnt; ++i)
1883 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2572 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1884 2573
1885 assert (anfdmax >= 0); 2574 assert (anfdmax >= 0);
1886 for (i = 0; i < anfdmax; ++i) 2575 for (i = 0; i < anfdmax; ++i)
2576 {
2577 int j = 0;
2578
1887 for (w = anfds [i].head; w; w = w->next) 2579 for (w = w2 = anfds [i].head; w; w = w->next)
1888 { 2580 {
1889 verify_watcher (EV_A_ (W)w); 2581 verify_watcher (EV_A_ (W)w);
2582
2583 if (j++ & 1)
2584 {
2585 assert (("libev: io watcher list contains a loop", w != w2));
2586 w2 = w2->next;
2587 }
2588
1890 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2589 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1891 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2590 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1892 } 2591 }
2592 }
1893 2593
1894 assert (timermax >= timercnt); 2594 assert (timermax >= timercnt);
1895 verify_heap (EV_A_ timers, timercnt); 2595 verify_heap (EV_A_ timers, timercnt);
1896 2596
1897#if EV_PERIODIC_ENABLE 2597#if EV_PERIODIC_ENABLE
… …
1912#if EV_FORK_ENABLE 2612#if EV_FORK_ENABLE
1913 assert (forkmax >= forkcnt); 2613 assert (forkmax >= forkcnt);
1914 array_verify (EV_A_ (W *)forks, forkcnt); 2614 array_verify (EV_A_ (W *)forks, forkcnt);
1915#endif 2615#endif
1916 2616
2617#if EV_CLEANUP_ENABLE
2618 assert (cleanupmax >= cleanupcnt);
2619 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
2620#endif
2621
1917#if EV_ASYNC_ENABLE 2622#if EV_ASYNC_ENABLE
1918 assert (asyncmax >= asynccnt); 2623 assert (asyncmax >= asynccnt);
1919 array_verify (EV_A_ (W *)asyncs, asynccnt); 2624 array_verify (EV_A_ (W *)asyncs, asynccnt);
1920#endif 2625#endif
1921 2626
… …
1938#endif 2643#endif
1939} 2644}
1940#endif 2645#endif
1941 2646
1942#if EV_MULTIPLICITY 2647#if EV_MULTIPLICITY
1943struct ev_loop * 2648struct ev_loop * ecb_cold
1944ev_default_loop_init (unsigned int flags)
1945#else 2649#else
1946int 2650int
2651#endif
1947ev_default_loop (unsigned int flags) 2652ev_default_loop (unsigned int flags) EV_THROW
1948#endif
1949{ 2653{
1950 if (!ev_default_loop_ptr) 2654 if (!ev_default_loop_ptr)
1951 { 2655 {
1952#if EV_MULTIPLICITY 2656#if EV_MULTIPLICITY
1953 EV_P = ev_default_loop_ptr = &default_loop_struct; 2657 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
1972 2676
1973 return ev_default_loop_ptr; 2677 return ev_default_loop_ptr;
1974} 2678}
1975 2679
1976void 2680void
1977ev_default_destroy (void) 2681ev_loop_fork (EV_P) EV_THROW
1978{ 2682{
1979#if EV_MULTIPLICITY
1980 EV_P = ev_default_loop_ptr;
1981#endif
1982
1983 ev_default_loop_ptr = 0;
1984
1985#if EV_CHILD_ENABLE
1986 ev_ref (EV_A); /* child watcher */
1987 ev_signal_stop (EV_A_ &childev);
1988#endif
1989
1990 loop_destroy (EV_A);
1991}
1992
1993void
1994ev_default_fork (void)
1995{
1996#if EV_MULTIPLICITY
1997 EV_P = ev_default_loop_ptr;
1998#endif
1999
2000 postfork = 1; /* must be in line with ev_loop_fork */ 2683 postfork = 1; /* must be in line with ev_default_fork */
2001} 2684}
2002 2685
2003/*****************************************************************************/ 2686/*****************************************************************************/
2004 2687
2005void 2688void
… …
2007{ 2690{
2008 EV_CB_INVOKE ((W)w, revents); 2691 EV_CB_INVOKE ((W)w, revents);
2009} 2692}
2010 2693
2011unsigned int 2694unsigned int
2012ev_pending_count (EV_P) 2695ev_pending_count (EV_P) EV_THROW
2013{ 2696{
2014 int pri; 2697 int pri;
2015 unsigned int count = 0; 2698 unsigned int count = 0;
2016 2699
2017 for (pri = NUMPRI; pri--; ) 2700 for (pri = NUMPRI; pri--; )
… …
2021} 2704}
2022 2705
2023void noinline 2706void noinline
2024ev_invoke_pending (EV_P) 2707ev_invoke_pending (EV_P)
2025{ 2708{
2026 int pri; 2709 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */
2027
2028 for (pri = NUMPRI; pri--; )
2029 while (pendingcnt [pri]) 2710 while (pendingcnt [pendingpri])
2030 { 2711 {
2031 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 2712 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2032
2033 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2034 /* ^ this is no longer true, as pending_w could be here */
2035 2713
2036 p->w->pending = 0; 2714 p->w->pending = 0;
2037 EV_CB_INVOKE (p->w, p->events); 2715 EV_CB_INVOKE (p->w, p->events);
2038 EV_FREQUENT_CHECK; 2716 EV_FREQUENT_CHECK;
2039 } 2717 }
… …
2096 EV_FREQUENT_CHECK; 2774 EV_FREQUENT_CHECK;
2097 feed_reverse (EV_A_ (W)w); 2775 feed_reverse (EV_A_ (W)w);
2098 } 2776 }
2099 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); 2777 while (timercnt && ANHE_at (timers [HEAP0]) < mn_now);
2100 2778
2101 feed_reverse_done (EV_A_ EV_TIMEOUT); 2779 feed_reverse_done (EV_A_ EV_TIMER);
2102 } 2780 }
2103} 2781}
2104 2782
2105#if EV_PERIODIC_ENABLE 2783#if EV_PERIODIC_ENABLE
2784
2785static void noinline
2786periodic_recalc (EV_P_ ev_periodic *w)
2787{
2788 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2789 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2790
2791 /* the above almost always errs on the low side */
2792 while (at <= ev_rt_now)
2793 {
2794 ev_tstamp nat = at + w->interval;
2795
2796 /* when resolution fails us, we use ev_rt_now */
2797 if (expect_false (nat == at))
2798 {
2799 at = ev_rt_now;
2800 break;
2801 }
2802
2803 at = nat;
2804 }
2805
2806 ev_at (w) = at;
2807}
2808
2106/* make periodics pending */ 2809/* make periodics pending */
2107inline_size void 2810inline_size void
2108periodics_reify (EV_P) 2811periodics_reify (EV_P)
2109{ 2812{
2110 EV_FREQUENT_CHECK; 2813 EV_FREQUENT_CHECK;
2111 2814
2112 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 2815 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2113 { 2816 {
2114 int feed_count = 0;
2115
2116 do 2817 do
2117 { 2818 {
2118 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 2819 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2119 2820
2120 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 2821 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2129 ANHE_at_cache (periodics [HEAP0]); 2830 ANHE_at_cache (periodics [HEAP0]);
2130 downheap (periodics, periodiccnt, HEAP0); 2831 downheap (periodics, periodiccnt, HEAP0);
2131 } 2832 }
2132 else if (w->interval) 2833 else if (w->interval)
2133 { 2834 {
2134 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2835 periodic_recalc (EV_A_ w);
2135 /* if next trigger time is not sufficiently in the future, put it there */
2136 /* this might happen because of floating point inexactness */
2137 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2138 {
2139 ev_at (w) += w->interval;
2140
2141 /* if interval is unreasonably low we might still have a time in the past */
2142 /* so correct this. this will make the periodic very inexact, but the user */
2143 /* has effectively asked to get triggered more often than possible */
2144 if (ev_at (w) < ev_rt_now)
2145 ev_at (w) = ev_rt_now;
2146 }
2147
2148 ANHE_at_cache (periodics [HEAP0]); 2836 ANHE_at_cache (periodics [HEAP0]);
2149 downheap (periodics, periodiccnt, HEAP0); 2837 downheap (periodics, periodiccnt, HEAP0);
2150 } 2838 }
2151 else 2839 else
2152 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 2840 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2159 feed_reverse_done (EV_A_ EV_PERIODIC); 2847 feed_reverse_done (EV_A_ EV_PERIODIC);
2160 } 2848 }
2161} 2849}
2162 2850
2163/* simply recalculate all periodics */ 2851/* simply recalculate all periodics */
2164/* TODO: maybe ensure that at leats one event happens when jumping forward? */ 2852/* TODO: maybe ensure that at least one event happens when jumping forward? */
2165static void noinline 2853static void noinline ecb_cold
2166periodics_reschedule (EV_P) 2854periodics_reschedule (EV_P)
2167{ 2855{
2168 int i; 2856 int i;
2169 2857
2170 /* adjust periodics after time jump */ 2858 /* adjust periodics after time jump */
… …
2173 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 2861 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2174 2862
2175 if (w->reschedule_cb) 2863 if (w->reschedule_cb)
2176 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 2864 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2177 else if (w->interval) 2865 else if (w->interval)
2178 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 2866 periodic_recalc (EV_A_ w);
2179 2867
2180 ANHE_at_cache (periodics [i]); 2868 ANHE_at_cache (periodics [i]);
2181 } 2869 }
2182 2870
2183 reheap (periodics, periodiccnt); 2871 reheap (periodics, periodiccnt);
2184} 2872}
2185#endif 2873#endif
2186 2874
2187/* adjust all timers by a given offset */ 2875/* adjust all timers by a given offset */
2188static void noinline 2876static void noinline ecb_cold
2189timers_reschedule (EV_P_ ev_tstamp adjust) 2877timers_reschedule (EV_P_ ev_tstamp adjust)
2190{ 2878{
2191 int i; 2879 int i;
2192 2880
2193 for (i = 0; i < timercnt; ++i) 2881 for (i = 0; i < timercnt; ++i)
… …
2230 * doesn't hurt either as we only do this on time-jumps or 2918 * doesn't hurt either as we only do this on time-jumps or
2231 * in the unlikely event of having been preempted here. 2919 * in the unlikely event of having been preempted here.
2232 */ 2920 */
2233 for (i = 4; --i; ) 2921 for (i = 4; --i; )
2234 { 2922 {
2923 ev_tstamp diff;
2235 rtmn_diff = ev_rt_now - mn_now; 2924 rtmn_diff = ev_rt_now - mn_now;
2236 2925
2926 diff = odiff - rtmn_diff;
2927
2237 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 2928 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2238 return; /* all is well */ 2929 return; /* all is well */
2239 2930
2240 ev_rt_now = ev_time (); 2931 ev_rt_now = ev_time ();
2241 mn_now = get_clock (); 2932 mn_now = get_clock ();
2242 now_floor = mn_now; 2933 now_floor = mn_now;
… …
2264 2955
2265 mn_now = ev_rt_now; 2956 mn_now = ev_rt_now;
2266 } 2957 }
2267} 2958}
2268 2959
2269void 2960int
2270ev_loop (EV_P_ int flags) 2961ev_run (EV_P_ int flags)
2271{ 2962{
2272#if EV_FEATURE_API 2963#if EV_FEATURE_API
2273 ++loop_depth; 2964 ++loop_depth;
2274#endif 2965#endif
2275 2966
2276 assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); 2967 assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE));
2277 2968
2278 loop_done = EVUNLOOP_CANCEL; 2969 loop_done = EVBREAK_CANCEL;
2279 2970
2280 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ 2971 EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */
2281 2972
2282 do 2973 do
2283 { 2974 {
… …
2326 /* calculate blocking time */ 3017 /* calculate blocking time */
2327 { 3018 {
2328 ev_tstamp waittime = 0.; 3019 ev_tstamp waittime = 0.;
2329 ev_tstamp sleeptime = 0.; 3020 ev_tstamp sleeptime = 0.;
2330 3021
3022 /* remember old timestamp for io_blocktime calculation */
3023 ev_tstamp prev_mn_now = mn_now;
3024
3025 /* update time to cancel out callback processing overhead */
3026 time_update (EV_A_ 1e100);
3027
3028 /* from now on, we want a pipe-wake-up */
3029 pipe_write_wanted = 1;
3030
3031 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3032
2331 if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) 3033 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2332 { 3034 {
2333 /* remember old timestamp for io_blocktime calculation */
2334 ev_tstamp prev_mn_now = mn_now;
2335
2336 /* update time to cancel out callback processing overhead */
2337 time_update (EV_A_ 1e100);
2338
2339 waittime = MAX_BLOCKTIME; 3035 waittime = MAX_BLOCKTIME;
2340 3036
2341 if (timercnt) 3037 if (timercnt)
2342 { 3038 {
2343 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3039 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2344 if (waittime > to) waittime = to; 3040 if (waittime > to) waittime = to;
2345 } 3041 }
2346 3042
2347#if EV_PERIODIC_ENABLE 3043#if EV_PERIODIC_ENABLE
2348 if (periodiccnt) 3044 if (periodiccnt)
2349 { 3045 {
2350 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3046 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2351 if (waittime > to) waittime = to; 3047 if (waittime > to) waittime = to;
2352 } 3048 }
2353#endif 3049#endif
2354 3050
2355 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3051 /* don't let timeouts decrease the waittime below timeout_blocktime */
2356 if (expect_false (waittime < timeout_blocktime)) 3052 if (expect_false (waittime < timeout_blocktime))
2357 waittime = timeout_blocktime; 3053 waittime = timeout_blocktime;
3054
3055 /* at this point, we NEED to wait, so we have to ensure */
3056 /* to pass a minimum nonzero value to the backend */
3057 if (expect_false (waittime < backend_mintime))
3058 waittime = backend_mintime;
2358 3059
2359 /* extra check because io_blocktime is commonly 0 */ 3060 /* extra check because io_blocktime is commonly 0 */
2360 if (expect_false (io_blocktime)) 3061 if (expect_false (io_blocktime))
2361 { 3062 {
2362 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3063 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2363 3064
2364 if (sleeptime > waittime - backend_fudge) 3065 if (sleeptime > waittime - backend_mintime)
2365 sleeptime = waittime - backend_fudge; 3066 sleeptime = waittime - backend_mintime;
2366 3067
2367 if (expect_true (sleeptime > 0.)) 3068 if (expect_true (sleeptime > 0.))
2368 { 3069 {
2369 ev_sleep (sleeptime); 3070 ev_sleep (sleeptime);
2370 waittime -= sleeptime; 3071 waittime -= sleeptime;
… …
2373 } 3074 }
2374 3075
2375#if EV_FEATURE_API 3076#if EV_FEATURE_API
2376 ++loop_count; 3077 ++loop_count;
2377#endif 3078#endif
2378 assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ 3079 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2379 backend_poll (EV_A_ waittime); 3080 backend_poll (EV_A_ waittime);
2380 assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ 3081 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3082
3083 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3084
3085 if (pipe_write_skipped)
3086 {
3087 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3088 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3089 }
3090
2381 3091
2382 /* update ev_rt_now, do magic */ 3092 /* update ev_rt_now, do magic */
2383 time_update (EV_A_ waittime + sleeptime); 3093 time_update (EV_A_ waittime + sleeptime);
2384 } 3094 }
2385 3095
… …
2403 EV_INVOKE_PENDING; 3113 EV_INVOKE_PENDING;
2404 } 3114 }
2405 while (expect_true ( 3115 while (expect_true (
2406 activecnt 3116 activecnt
2407 && !loop_done 3117 && !loop_done
2408 && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) 3118 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
2409 )); 3119 ));
2410 3120
2411 if (loop_done == EVUNLOOP_ONE) 3121 if (loop_done == EVBREAK_ONE)
2412 loop_done = EVUNLOOP_CANCEL; 3122 loop_done = EVBREAK_CANCEL;
2413 3123
2414#if EV_FEATURE_API 3124#if EV_FEATURE_API
2415 --loop_depth; 3125 --loop_depth;
2416#endif 3126#endif
3127
3128 return activecnt;
2417} 3129}
2418 3130
2419void 3131void
2420ev_unloop (EV_P_ int how) 3132ev_break (EV_P_ int how) EV_THROW
2421{ 3133{
2422 loop_done = how; 3134 loop_done = how;
2423} 3135}
2424 3136
2425void 3137void
2426ev_ref (EV_P) 3138ev_ref (EV_P) EV_THROW
2427{ 3139{
2428 ++activecnt; 3140 ++activecnt;
2429} 3141}
2430 3142
2431void 3143void
2432ev_unref (EV_P) 3144ev_unref (EV_P) EV_THROW
2433{ 3145{
2434 --activecnt; 3146 --activecnt;
2435} 3147}
2436 3148
2437void 3149void
2438ev_now_update (EV_P) 3150ev_now_update (EV_P) EV_THROW
2439{ 3151{
2440 time_update (EV_A_ 1e100); 3152 time_update (EV_A_ 1e100);
2441} 3153}
2442 3154
2443void 3155void
2444ev_suspend (EV_P) 3156ev_suspend (EV_P) EV_THROW
2445{ 3157{
2446 ev_now_update (EV_A); 3158 ev_now_update (EV_A);
2447} 3159}
2448 3160
2449void 3161void
2450ev_resume (EV_P) 3162ev_resume (EV_P) EV_THROW
2451{ 3163{
2452 ev_tstamp mn_prev = mn_now; 3164 ev_tstamp mn_prev = mn_now;
2453 3165
2454 ev_now_update (EV_A); 3166 ev_now_update (EV_A);
2455 timers_reschedule (EV_A_ mn_now - mn_prev); 3167 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2494 w->pending = 0; 3206 w->pending = 0;
2495 } 3207 }
2496} 3208}
2497 3209
2498int 3210int
2499ev_clear_pending (EV_P_ void *w) 3211ev_clear_pending (EV_P_ void *w) EV_THROW
2500{ 3212{
2501 W w_ = (W)w; 3213 W w_ = (W)w;
2502 int pending = w_->pending; 3214 int pending = w_->pending;
2503 3215
2504 if (expect_true (pending)) 3216 if (expect_true (pending))
… …
2537} 3249}
2538 3250
2539/*****************************************************************************/ 3251/*****************************************************************************/
2540 3252
2541void noinline 3253void noinline
2542ev_io_start (EV_P_ ev_io *w) 3254ev_io_start (EV_P_ ev_io *w) EV_THROW
2543{ 3255{
2544 int fd = w->fd; 3256 int fd = w->fd;
2545 3257
2546 if (expect_false (ev_is_active (w))) 3258 if (expect_false (ev_is_active (w)))
2547 return; 3259 return;
… …
2553 3265
2554 ev_start (EV_A_ (W)w, 1); 3266 ev_start (EV_A_ (W)w, 1);
2555 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3267 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2556 wlist_add (&anfds[fd].head, (WL)w); 3268 wlist_add (&anfds[fd].head, (WL)w);
2557 3269
3270 /* common bug, apparently */
3271 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3272
2558 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3273 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2559 w->events &= ~EV__IOFDSET; 3274 w->events &= ~EV__IOFDSET;
2560 3275
2561 EV_FREQUENT_CHECK; 3276 EV_FREQUENT_CHECK;
2562} 3277}
2563 3278
2564void noinline 3279void noinline
2565ev_io_stop (EV_P_ ev_io *w) 3280ev_io_stop (EV_P_ ev_io *w) EV_THROW
2566{ 3281{
2567 clear_pending (EV_A_ (W)w); 3282 clear_pending (EV_A_ (W)w);
2568 if (expect_false (!ev_is_active (w))) 3283 if (expect_false (!ev_is_active (w)))
2569 return; 3284 return;
2570 3285
… …
2573 EV_FREQUENT_CHECK; 3288 EV_FREQUENT_CHECK;
2574 3289
2575 wlist_del (&anfds[w->fd].head, (WL)w); 3290 wlist_del (&anfds[w->fd].head, (WL)w);
2576 ev_stop (EV_A_ (W)w); 3291 ev_stop (EV_A_ (W)w);
2577 3292
2578 fd_change (EV_A_ w->fd, 1); 3293 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2579 3294
2580 EV_FREQUENT_CHECK; 3295 EV_FREQUENT_CHECK;
2581} 3296}
2582 3297
2583void noinline 3298void noinline
2584ev_timer_start (EV_P_ ev_timer *w) 3299ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2585{ 3300{
2586 if (expect_false (ev_is_active (w))) 3301 if (expect_false (ev_is_active (w)))
2587 return; 3302 return;
2588 3303
2589 ev_at (w) += mn_now; 3304 ev_at (w) += mn_now;
… …
2603 3318
2604 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3319 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2605} 3320}
2606 3321
2607void noinline 3322void noinline
2608ev_timer_stop (EV_P_ ev_timer *w) 3323ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2609{ 3324{
2610 clear_pending (EV_A_ (W)w); 3325 clear_pending (EV_A_ (W)w);
2611 if (expect_false (!ev_is_active (w))) 3326 if (expect_false (!ev_is_active (w)))
2612 return; 3327 return;
2613 3328
… …
2633 3348
2634 EV_FREQUENT_CHECK; 3349 EV_FREQUENT_CHECK;
2635} 3350}
2636 3351
2637void noinline 3352void noinline
2638ev_timer_again (EV_P_ ev_timer *w) 3353ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2639{ 3354{
2640 EV_FREQUENT_CHECK; 3355 EV_FREQUENT_CHECK;
3356
3357 clear_pending (EV_A_ (W)w);
2641 3358
2642 if (ev_is_active (w)) 3359 if (ev_is_active (w))
2643 { 3360 {
2644 if (w->repeat) 3361 if (w->repeat)
2645 { 3362 {
… …
2658 3375
2659 EV_FREQUENT_CHECK; 3376 EV_FREQUENT_CHECK;
2660} 3377}
2661 3378
2662ev_tstamp 3379ev_tstamp
2663ev_timer_remaining (EV_P_ ev_timer *w) 3380ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2664{ 3381{
2665 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3382 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2666} 3383}
2667 3384
2668#if EV_PERIODIC_ENABLE 3385#if EV_PERIODIC_ENABLE
2669void noinline 3386void noinline
2670ev_periodic_start (EV_P_ ev_periodic *w) 3387ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2671{ 3388{
2672 if (expect_false (ev_is_active (w))) 3389 if (expect_false (ev_is_active (w)))
2673 return; 3390 return;
2674 3391
2675 if (w->reschedule_cb) 3392 if (w->reschedule_cb)
2676 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3393 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2677 else if (w->interval) 3394 else if (w->interval)
2678 { 3395 {
2679 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 3396 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2680 /* this formula differs from the one in periodic_reify because we do not always round up */ 3397 periodic_recalc (EV_A_ w);
2681 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2682 } 3398 }
2683 else 3399 else
2684 ev_at (w) = w->offset; 3400 ev_at (w) = w->offset;
2685 3401
2686 EV_FREQUENT_CHECK; 3402 EV_FREQUENT_CHECK;
… …
2696 3412
2697 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3413 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2698} 3414}
2699 3415
2700void noinline 3416void noinline
2701ev_periodic_stop (EV_P_ ev_periodic *w) 3417ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2702{ 3418{
2703 clear_pending (EV_A_ (W)w); 3419 clear_pending (EV_A_ (W)w);
2704 if (expect_false (!ev_is_active (w))) 3420 if (expect_false (!ev_is_active (w)))
2705 return; 3421 return;
2706 3422
… …
2724 3440
2725 EV_FREQUENT_CHECK; 3441 EV_FREQUENT_CHECK;
2726} 3442}
2727 3443
2728void noinline 3444void noinline
2729ev_periodic_again (EV_P_ ev_periodic *w) 3445ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2730{ 3446{
2731 /* TODO: use adjustheap and recalculation */ 3447 /* TODO: use adjustheap and recalculation */
2732 ev_periodic_stop (EV_A_ w); 3448 ev_periodic_stop (EV_A_ w);
2733 ev_periodic_start (EV_A_ w); 3449 ev_periodic_start (EV_A_ w);
2734} 3450}
… …
2739#endif 3455#endif
2740 3456
2741#if EV_SIGNAL_ENABLE 3457#if EV_SIGNAL_ENABLE
2742 3458
2743void noinline 3459void noinline
2744ev_signal_start (EV_P_ ev_signal *w) 3460ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2745{ 3461{
2746 if (expect_false (ev_is_active (w))) 3462 if (expect_false (ev_is_active (w)))
2747 return; 3463 return;
2748 3464
2749 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3465 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2807 sa.sa_handler = ev_sighandler; 3523 sa.sa_handler = ev_sighandler;
2808 sigfillset (&sa.sa_mask); 3524 sigfillset (&sa.sa_mask);
2809 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 3525 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2810 sigaction (w->signum, &sa, 0); 3526 sigaction (w->signum, &sa, 0);
2811 3527
3528 if (origflags & EVFLAG_NOSIGMASK)
3529 {
2812 sigemptyset (&sa.sa_mask); 3530 sigemptyset (&sa.sa_mask);
2813 sigaddset (&sa.sa_mask, w->signum); 3531 sigaddset (&sa.sa_mask, w->signum);
2814 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 3532 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
3533 }
2815#endif 3534#endif
2816 } 3535 }
2817 3536
2818 EV_FREQUENT_CHECK; 3537 EV_FREQUENT_CHECK;
2819} 3538}
2820 3539
2821void noinline 3540void noinline
2822ev_signal_stop (EV_P_ ev_signal *w) 3541ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2823{ 3542{
2824 clear_pending (EV_A_ (W)w); 3543 clear_pending (EV_A_ (W)w);
2825 if (expect_false (!ev_is_active (w))) 3544 if (expect_false (!ev_is_active (w)))
2826 return; 3545 return;
2827 3546
… …
2858#endif 3577#endif
2859 3578
2860#if EV_CHILD_ENABLE 3579#if EV_CHILD_ENABLE
2861 3580
2862void 3581void
2863ev_child_start (EV_P_ ev_child *w) 3582ev_child_start (EV_P_ ev_child *w) EV_THROW
2864{ 3583{
2865#if EV_MULTIPLICITY 3584#if EV_MULTIPLICITY
2866 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3585 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2867#endif 3586#endif
2868 if (expect_false (ev_is_active (w))) 3587 if (expect_false (ev_is_active (w)))
… …
2875 3594
2876 EV_FREQUENT_CHECK; 3595 EV_FREQUENT_CHECK;
2877} 3596}
2878 3597
2879void 3598void
2880ev_child_stop (EV_P_ ev_child *w) 3599ev_child_stop (EV_P_ ev_child *w) EV_THROW
2881{ 3600{
2882 clear_pending (EV_A_ (W)w); 3601 clear_pending (EV_A_ (W)w);
2883 if (expect_false (!ev_is_active (w))) 3602 if (expect_false (!ev_is_active (w)))
2884 return; 3603 return;
2885 3604
… …
2960 if (!pend || pend == path) 3679 if (!pend || pend == path)
2961 break; 3680 break;
2962 3681
2963 *pend = 0; 3682 *pend = 0;
2964 w->wd = inotify_add_watch (fs_fd, path, mask); 3683 w->wd = inotify_add_watch (fs_fd, path, mask);
2965 } 3684 }
2966 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 3685 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
2967 } 3686 }
2968 } 3687 }
2969 3688
2970 if (w->wd >= 0) 3689 if (w->wd >= 0)
… …
3037 infy_wd (EV_A_ ev->wd, ev->wd, ev); 3756 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3038 ofs += sizeof (struct inotify_event) + ev->len; 3757 ofs += sizeof (struct inotify_event) + ev->len;
3039 } 3758 }
3040} 3759}
3041 3760
3042inline_size unsigned int
3043ev_linux_version (void)
3044{
3045 struct utsname buf;
3046 unsigned int v;
3047 int i;
3048 char *p = buf.release;
3049
3050 if (uname (&buf))
3051 return 0;
3052
3053 for (i = 3+1; --i; )
3054 {
3055 unsigned int c = 0;
3056
3057 for (;;)
3058 {
3059 if (*p >= '0' && *p <= '9')
3060 c = c * 10 + *p++ - '0';
3061 else
3062 {
3063 p += *p == '.';
3064 break;
3065 }
3066 }
3067
3068 v = (v << 8) | c;
3069 }
3070
3071 return v;
3072}
3073
3074inline_size void 3761inline_size void ecb_cold
3075ev_check_2625 (EV_P) 3762ev_check_2625 (EV_P)
3076{ 3763{
3077 /* kernels < 2.6.25 are borked 3764 /* kernels < 2.6.25 are borked
3078 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 3765 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3079 */ 3766 */
… …
3084} 3771}
3085 3772
3086inline_size int 3773inline_size int
3087infy_newfd (void) 3774infy_newfd (void)
3088{ 3775{
3089#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 3776#if defined IN_CLOEXEC && defined IN_NONBLOCK
3090 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 3777 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3091 if (fd >= 0) 3778 if (fd >= 0)
3092 return fd; 3779 return fd;
3093#endif 3780#endif
3094 return inotify_init (); 3781 return inotify_init ();
… …
3169#else 3856#else
3170# define EV_LSTAT(p,b) lstat (p, b) 3857# define EV_LSTAT(p,b) lstat (p, b)
3171#endif 3858#endif
3172 3859
3173void 3860void
3174ev_stat_stat (EV_P_ ev_stat *w) 3861ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3175{ 3862{
3176 if (lstat (w->path, &w->attr) < 0) 3863 if (lstat (w->path, &w->attr) < 0)
3177 w->attr.st_nlink = 0; 3864 w->attr.st_nlink = 0;
3178 else if (!w->attr.st_nlink) 3865 else if (!w->attr.st_nlink)
3179 w->attr.st_nlink = 1; 3866 w->attr.st_nlink = 1;
… …
3218 ev_feed_event (EV_A_ w, EV_STAT); 3905 ev_feed_event (EV_A_ w, EV_STAT);
3219 } 3906 }
3220} 3907}
3221 3908
3222void 3909void
3223ev_stat_start (EV_P_ ev_stat *w) 3910ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3224{ 3911{
3225 if (expect_false (ev_is_active (w))) 3912 if (expect_false (ev_is_active (w)))
3226 return; 3913 return;
3227 3914
3228 ev_stat_stat (EV_A_ w); 3915 ev_stat_stat (EV_A_ w);
… …
3249 3936
3250 EV_FREQUENT_CHECK; 3937 EV_FREQUENT_CHECK;
3251} 3938}
3252 3939
3253void 3940void
3254ev_stat_stop (EV_P_ ev_stat *w) 3941ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3255{ 3942{
3256 clear_pending (EV_A_ (W)w); 3943 clear_pending (EV_A_ (W)w);
3257 if (expect_false (!ev_is_active (w))) 3944 if (expect_false (!ev_is_active (w)))
3258 return; 3945 return;
3259 3946
… …
3275} 3962}
3276#endif 3963#endif
3277 3964
3278#if EV_IDLE_ENABLE 3965#if EV_IDLE_ENABLE
3279void 3966void
3280ev_idle_start (EV_P_ ev_idle *w) 3967ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3281{ 3968{
3282 if (expect_false (ev_is_active (w))) 3969 if (expect_false (ev_is_active (w)))
3283 return; 3970 return;
3284 3971
3285 pri_adjust (EV_A_ (W)w); 3972 pri_adjust (EV_A_ (W)w);
… …
3298 3985
3299 EV_FREQUENT_CHECK; 3986 EV_FREQUENT_CHECK;
3300} 3987}
3301 3988
3302void 3989void
3303ev_idle_stop (EV_P_ ev_idle *w) 3990ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3304{ 3991{
3305 clear_pending (EV_A_ (W)w); 3992 clear_pending (EV_A_ (W)w);
3306 if (expect_false (!ev_is_active (w))) 3993 if (expect_false (!ev_is_active (w)))
3307 return; 3994 return;
3308 3995
… …
3322} 4009}
3323#endif 4010#endif
3324 4011
3325#if EV_PREPARE_ENABLE 4012#if EV_PREPARE_ENABLE
3326void 4013void
3327ev_prepare_start (EV_P_ ev_prepare *w) 4014ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3328{ 4015{
3329 if (expect_false (ev_is_active (w))) 4016 if (expect_false (ev_is_active (w)))
3330 return; 4017 return;
3331 4018
3332 EV_FREQUENT_CHECK; 4019 EV_FREQUENT_CHECK;
… …
3337 4024
3338 EV_FREQUENT_CHECK; 4025 EV_FREQUENT_CHECK;
3339} 4026}
3340 4027
3341void 4028void
3342ev_prepare_stop (EV_P_ ev_prepare *w) 4029ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3343{ 4030{
3344 clear_pending (EV_A_ (W)w); 4031 clear_pending (EV_A_ (W)w);
3345 if (expect_false (!ev_is_active (w))) 4032 if (expect_false (!ev_is_active (w)))
3346 return; 4033 return;
3347 4034
… …
3360} 4047}
3361#endif 4048#endif
3362 4049
3363#if EV_CHECK_ENABLE 4050#if EV_CHECK_ENABLE
3364void 4051void
3365ev_check_start (EV_P_ ev_check *w) 4052ev_check_start (EV_P_ ev_check *w) EV_THROW
3366{ 4053{
3367 if (expect_false (ev_is_active (w))) 4054 if (expect_false (ev_is_active (w)))
3368 return; 4055 return;
3369 4056
3370 EV_FREQUENT_CHECK; 4057 EV_FREQUENT_CHECK;
… …
3375 4062
3376 EV_FREQUENT_CHECK; 4063 EV_FREQUENT_CHECK;
3377} 4064}
3378 4065
3379void 4066void
3380ev_check_stop (EV_P_ ev_check *w) 4067ev_check_stop (EV_P_ ev_check *w) EV_THROW
3381{ 4068{
3382 clear_pending (EV_A_ (W)w); 4069 clear_pending (EV_A_ (W)w);
3383 if (expect_false (!ev_is_active (w))) 4070 if (expect_false (!ev_is_active (w)))
3384 return; 4071 return;
3385 4072
… …
3398} 4085}
3399#endif 4086#endif
3400 4087
3401#if EV_EMBED_ENABLE 4088#if EV_EMBED_ENABLE
3402void noinline 4089void noinline
3403ev_embed_sweep (EV_P_ ev_embed *w) 4090ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3404{ 4091{
3405 ev_loop (w->other, EVLOOP_NONBLOCK); 4092 ev_run (w->other, EVRUN_NOWAIT);
3406} 4093}
3407 4094
3408static void 4095static void
3409embed_io_cb (EV_P_ ev_io *io, int revents) 4096embed_io_cb (EV_P_ ev_io *io, int revents)
3410{ 4097{
3411 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); 4098 ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io));
3412 4099
3413 if (ev_cb (w)) 4100 if (ev_cb (w))
3414 ev_feed_event (EV_A_ (W)w, EV_EMBED); 4101 ev_feed_event (EV_A_ (W)w, EV_EMBED);
3415 else 4102 else
3416 ev_loop (w->other, EVLOOP_NONBLOCK); 4103 ev_run (w->other, EVRUN_NOWAIT);
3417} 4104}
3418 4105
3419static void 4106static void
3420embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) 4107embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents)
3421{ 4108{
… …
3425 EV_P = w->other; 4112 EV_P = w->other;
3426 4113
3427 while (fdchangecnt) 4114 while (fdchangecnt)
3428 { 4115 {
3429 fd_reify (EV_A); 4116 fd_reify (EV_A);
3430 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4117 ev_run (EV_A_ EVRUN_NOWAIT);
3431 } 4118 }
3432 } 4119 }
3433} 4120}
3434 4121
3435static void 4122static void
… …
3441 4128
3442 { 4129 {
3443 EV_P = w->other; 4130 EV_P = w->other;
3444 4131
3445 ev_loop_fork (EV_A); 4132 ev_loop_fork (EV_A);
3446 ev_loop (EV_A_ EVLOOP_NONBLOCK); 4133 ev_run (EV_A_ EVRUN_NOWAIT);
3447 } 4134 }
3448 4135
3449 ev_embed_start (EV_A_ w); 4136 ev_embed_start (EV_A_ w);
3450} 4137}
3451 4138
… …
3456 ev_idle_stop (EV_A_ idle); 4143 ev_idle_stop (EV_A_ idle);
3457} 4144}
3458#endif 4145#endif
3459 4146
3460void 4147void
3461ev_embed_start (EV_P_ ev_embed *w) 4148ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3462{ 4149{
3463 if (expect_false (ev_is_active (w))) 4150 if (expect_false (ev_is_active (w)))
3464 return; 4151 return;
3465 4152
3466 { 4153 {
… …
3487 4174
3488 EV_FREQUENT_CHECK; 4175 EV_FREQUENT_CHECK;
3489} 4176}
3490 4177
3491void 4178void
3492ev_embed_stop (EV_P_ ev_embed *w) 4179ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3493{ 4180{
3494 clear_pending (EV_A_ (W)w); 4181 clear_pending (EV_A_ (W)w);
3495 if (expect_false (!ev_is_active (w))) 4182 if (expect_false (!ev_is_active (w)))
3496 return; 4183 return;
3497 4184
… …
3507} 4194}
3508#endif 4195#endif
3509 4196
3510#if EV_FORK_ENABLE 4197#if EV_FORK_ENABLE
3511void 4198void
3512ev_fork_start (EV_P_ ev_fork *w) 4199ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3513{ 4200{
3514 if (expect_false (ev_is_active (w))) 4201 if (expect_false (ev_is_active (w)))
3515 return; 4202 return;
3516 4203
3517 EV_FREQUENT_CHECK; 4204 EV_FREQUENT_CHECK;
… …
3522 4209
3523 EV_FREQUENT_CHECK; 4210 EV_FREQUENT_CHECK;
3524} 4211}
3525 4212
3526void 4213void
3527ev_fork_stop (EV_P_ ev_fork *w) 4214ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3528{ 4215{
3529 clear_pending (EV_A_ (W)w); 4216 clear_pending (EV_A_ (W)w);
3530 if (expect_false (!ev_is_active (w))) 4217 if (expect_false (!ev_is_active (w)))
3531 return; 4218 return;
3532 4219
… …
3543 4230
3544 EV_FREQUENT_CHECK; 4231 EV_FREQUENT_CHECK;
3545} 4232}
3546#endif 4233#endif
3547 4234
4235#if EV_CLEANUP_ENABLE
4236void
4237ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4238{
4239 if (expect_false (ev_is_active (w)))
4240 return;
4241
4242 EV_FREQUENT_CHECK;
4243
4244 ev_start (EV_A_ (W)w, ++cleanupcnt);
4245 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4246 cleanups [cleanupcnt - 1] = w;
4247
4248 /* cleanup watchers should never keep a refcount on the loop */
4249 ev_unref (EV_A);
4250 EV_FREQUENT_CHECK;
4251}
4252
4253void
4254ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4255{
4256 clear_pending (EV_A_ (W)w);
4257 if (expect_false (!ev_is_active (w)))
4258 return;
4259
4260 EV_FREQUENT_CHECK;
4261 ev_ref (EV_A);
4262
4263 {
4264 int active = ev_active (w);
4265
4266 cleanups [active - 1] = cleanups [--cleanupcnt];
4267 ev_active (cleanups [active - 1]) = active;
4268 }
4269
4270 ev_stop (EV_A_ (W)w);
4271
4272 EV_FREQUENT_CHECK;
4273}
4274#endif
4275
3548#if EV_ASYNC_ENABLE 4276#if EV_ASYNC_ENABLE
3549void 4277void
3550ev_async_start (EV_P_ ev_async *w) 4278ev_async_start (EV_P_ ev_async *w) EV_THROW
3551{ 4279{
3552 if (expect_false (ev_is_active (w))) 4280 if (expect_false (ev_is_active (w)))
3553 return; 4281 return;
4282
4283 w->sent = 0;
3554 4284
3555 evpipe_init (EV_A); 4285 evpipe_init (EV_A);
3556 4286
3557 EV_FREQUENT_CHECK; 4287 EV_FREQUENT_CHECK;
3558 4288
… …
3562 4292
3563 EV_FREQUENT_CHECK; 4293 EV_FREQUENT_CHECK;
3564} 4294}
3565 4295
3566void 4296void
3567ev_async_stop (EV_P_ ev_async *w) 4297ev_async_stop (EV_P_ ev_async *w) EV_THROW
3568{ 4298{
3569 clear_pending (EV_A_ (W)w); 4299 clear_pending (EV_A_ (W)w);
3570 if (expect_false (!ev_is_active (w))) 4300 if (expect_false (!ev_is_active (w)))
3571 return; 4301 return;
3572 4302
… …
3583 4313
3584 EV_FREQUENT_CHECK; 4314 EV_FREQUENT_CHECK;
3585} 4315}
3586 4316
3587void 4317void
3588ev_async_send (EV_P_ ev_async *w) 4318ev_async_send (EV_P_ ev_async *w) EV_THROW
3589{ 4319{
3590 w->sent = 1; 4320 w->sent = 1;
3591 evpipe_write (EV_A_ &async_pending); 4321 evpipe_write (EV_A_ &async_pending);
3592} 4322}
3593#endif 4323#endif
… …
3630 4360
3631 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4361 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3632} 4362}
3633 4363
3634void 4364void
3635ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4365ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3636{ 4366{
3637 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4367 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3638 4368
3639 if (expect_false (!once)) 4369 if (expect_false (!once))
3640 { 4370 {
3641 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); 4371 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
3642 return; 4372 return;
3643 } 4373 }
3644 4374
3645 once->cb = cb; 4375 once->cb = cb;
3646 once->arg = arg; 4376 once->arg = arg;
… …
3661} 4391}
3662 4392
3663/*****************************************************************************/ 4393/*****************************************************************************/
3664 4394
3665#if EV_WALK_ENABLE 4395#if EV_WALK_ENABLE
3666void 4396void ecb_cold
3667ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4397ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3668{ 4398{
3669 int i, j; 4399 int i, j;
3670 ev_watcher_list *wl, *wn; 4400 ev_watcher_list *wl, *wn;
3671 4401
3672 if (types & (EV_IO | EV_EMBED)) 4402 if (types & (EV_IO | EV_EMBED))
… …
3715 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4445 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3716#endif 4446#endif
3717 4447
3718#if EV_IDLE_ENABLE 4448#if EV_IDLE_ENABLE
3719 if (types & EV_IDLE) 4449 if (types & EV_IDLE)
3720 for (j = NUMPRI; i--; ) 4450 for (j = NUMPRI; j--; )
3721 for (i = idlecnt [j]; i--; ) 4451 for (i = idlecnt [j]; i--; )
3722 cb (EV_A_ EV_IDLE, idles [j][i]); 4452 cb (EV_A_ EV_IDLE, idles [j][i]);
3723#endif 4453#endif
3724 4454
3725#if EV_FORK_ENABLE 4455#if EV_FORK_ENABLE
… …
3778 4508
3779#if EV_MULTIPLICITY 4509#if EV_MULTIPLICITY
3780 #include "ev_wrap.h" 4510 #include "ev_wrap.h"
3781#endif 4511#endif
3782 4512
3783#ifdef __cplusplus
3784}
3785#endif
3786

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