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Comparing libev/ev.c (file contents):
Revision 1.356 by root, Fri Oct 22 11:21:52 2010 UTC vs.
Revision 1.483 by root, Tue Jul 31 04:45:58 2018 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) 2007,2008,2009,2010,2011,2012,2013 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,
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1
51# endif
52# endif
53
48# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
49# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
50# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
51# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
52# define EV_USE_REALTIME 0 58# define EV_USE_REALTIME 0
53# endif 59# endif
54# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
55# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
56# endif 62# endif
57# endif 63# endif
58# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
59# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
60# endif 66# endif
61 67
62# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
63# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
156# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
157# endif 163# endif
158 164
159#endif 165#endif
160 166
161#include <math.h> 167/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were
170 * ordered to have a vacuum, or they do anything for money.
171 * This might help. Or not.
172 * Note that this must be defined early, as other include files
173 * will rely on this define as well.
174 */
175#define _DARWIN_UNLIMITED_SELECT 1
176
162#include <stdlib.h> 177#include <stdlib.h>
163#include <string.h> 178#include <string.h>
164#include <fcntl.h> 179#include <fcntl.h>
165#include <stddef.h> 180#include <stddef.h>
166 181
… …
178# include EV_H 193# include EV_H
179#else 194#else
180# include "ev.h" 195# include "ev.h"
181#endif 196#endif
182 197
183EV_CPP(extern "C" {) 198#if EV_NO_THREADS
199# undef EV_NO_SMP
200# define EV_NO_SMP 1
201# undef ECB_NO_THREADS
202# define ECB_NO_THREADS 1
203#endif
204#if EV_NO_SMP
205# undef EV_NO_SMP
206# define ECB_NO_SMP 1
207#endif
184 208
185#ifndef _WIN32 209#ifndef _WIN32
186# include <sys/time.h> 210# include <sys/time.h>
187# include <sys/wait.h> 211# include <sys/wait.h>
188# include <unistd.h> 212# include <unistd.h>
189#else 213#else
190# include <io.h> 214# include <io.h>
191# define WIN32_LEAN_AND_MEAN 215# define WIN32_LEAN_AND_MEAN
216# include <winsock2.h>
192# include <windows.h> 217# include <windows.h>
193# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
194# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
195# endif 220# endif
196# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
197#endif 222#endif
198 223
199/* OS X, in its infinite idiocy, actually HARDCODES
200 * a limit of 1024 into their select. Where people have brains,
201 * OS X engineers apparently have a vacuum. Or maybe they were
202 * ordered to have a vacuum, or they do anything for money.
203 * This might help. Or not.
204 */
205#define _DARWIN_UNLIMITED_SELECT 1
206
207/* this block tries to deduce configuration from header-defined symbols and defaults */ 224/* this block tries to deduce configuration from header-defined symbols and defaults */
208 225
209/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
210#if defined (EV_NSIG) 227#if defined EV_NSIG
211/* use what's provided */ 228/* use what's provided */
212#elif defined (NSIG) 229#elif defined NSIG
213# define EV_NSIG (NSIG) 230# define EV_NSIG (NSIG)
214#elif defined(_NSIG) 231#elif defined _NSIG
215# define EV_NSIG (_NSIG) 232# define EV_NSIG (_NSIG)
216#elif defined (SIGMAX) 233#elif defined SIGMAX
217# define EV_NSIG (SIGMAX+1) 234# define EV_NSIG (SIGMAX+1)
218#elif defined (SIG_MAX) 235#elif defined SIG_MAX
219# define EV_NSIG (SIG_MAX+1) 236# define EV_NSIG (SIG_MAX+1)
220#elif defined (_SIG_MAX) 237#elif defined _SIG_MAX
221# define EV_NSIG (_SIG_MAX+1) 238# define EV_NSIG (_SIG_MAX+1)
222#elif defined (MAXSIG) 239#elif defined MAXSIG
223# define EV_NSIG (MAXSIG+1) 240# define EV_NSIG (MAXSIG+1)
224#elif defined (MAX_SIG) 241#elif defined MAX_SIG
225# define EV_NSIG (MAX_SIG+1) 242# define EV_NSIG (MAX_SIG+1)
226#elif defined (SIGARRAYSIZE) 243#elif defined SIGARRAYSIZE
227# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 244# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
228#elif defined (_sys_nsig) 245#elif defined _sys_nsig
229# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 246# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
230#else 247#else
231# error "unable to find value for NSIG, please report" 248# define EV_NSIG (8 * sizeof (sigset_t) + 1)
232/* to make it compile regardless, just remove the above line, */ 249#endif
233/* but consider reporting it, too! :) */ 250
234# define EV_NSIG 65 251#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0
235#endif 253#endif
236 254
237#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
238# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
239# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
240# else 258# else
241# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
242# endif 260# endif
243#endif 261#endif
244 262
263#if !(_POSIX_TIMERS > 0)
264# ifndef EV_USE_MONOTONIC
265# define EV_USE_MONOTONIC 0
266# endif
267# ifndef EV_USE_REALTIME
268# define EV_USE_REALTIME 0
269# endif
270#endif
271
245#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
246# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
247# define EV_USE_MONOTONIC EV_FEATURE_OS 274# define EV_USE_MONOTONIC EV_FEATURE_OS
248# else 275# else
249# define EV_USE_MONOTONIC 0 276# define EV_USE_MONOTONIC 0
250# endif 277# endif
251#endif 278#endif
… …
338 365
339#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
340# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
341#endif 368#endif
342 369
370#ifdef __ANDROID__
371/* supposedly, android doesn't typedef fd_mask */
372# undef EV_USE_SELECT
373# define EV_USE_SELECT 0
374/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
375# undef EV_USE_CLOCK_SYSCALL
376# define EV_USE_CLOCK_SYSCALL 0
377#endif
378
379/* aix's poll.h seems to cause lots of trouble */
380#ifdef _AIX
381/* AIX has a completely broken poll.h header */
382# undef EV_USE_POLL
383# define EV_USE_POLL 0
384#endif
385
343/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 386/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
344/* which makes programs even slower. might work on other unices, too. */ 387/* which makes programs even slower. might work on other unices, too. */
345#if EV_USE_CLOCK_SYSCALL 388#if EV_USE_CLOCK_SYSCALL
346# include <syscall.h> 389# include <sys/syscall.h>
347# ifdef SYS_clock_gettime 390# ifdef SYS_clock_gettime
348# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 391# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
349# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
350# define EV_USE_MONOTONIC 1 393# define EV_USE_MONOTONIC 1
351# else 394# else
… …
354# endif 397# endif
355#endif 398#endif
356 399
357/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 400/* this block fixes any misconfiguration where we know we run into trouble otherwise */
358 401
359#ifdef _AIX
360/* AIX has a completely broken poll.h header */
361# undef EV_USE_POLL
362# define EV_USE_POLL 0
363#endif
364
365#ifndef CLOCK_MONOTONIC 402#ifndef CLOCK_MONOTONIC
366# undef EV_USE_MONOTONIC 403# undef EV_USE_MONOTONIC
367# define EV_USE_MONOTONIC 0 404# define EV_USE_MONOTONIC 0
368#endif 405#endif
369 406
… …
376# undef EV_USE_INOTIFY 413# undef EV_USE_INOTIFY
377# define EV_USE_INOTIFY 0 414# define EV_USE_INOTIFY 0
378#endif 415#endif
379 416
380#if !EV_USE_NANOSLEEP 417#if !EV_USE_NANOSLEEP
381# ifndef _WIN32 418/* hp-ux has it in sys/time.h, which we unconditionally include above */
419# if !defined _WIN32 && !defined __hpux
382# include <sys/select.h> 420# include <sys/select.h>
383# endif 421# endif
384#endif 422#endif
385 423
386#if EV_USE_INOTIFY 424#if EV_USE_INOTIFY
… …
389/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 427/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
390# ifndef IN_DONT_FOLLOW 428# ifndef IN_DONT_FOLLOW
391# undef EV_USE_INOTIFY 429# undef EV_USE_INOTIFY
392# define EV_USE_INOTIFY 0 430# define EV_USE_INOTIFY 0
393# endif 431# endif
394#endif
395
396#if EV_SELECT_IS_WINSOCKET
397# include <winsock.h>
398#endif 432#endif
399 433
400#if EV_USE_EVENTFD 434#if EV_USE_EVENTFD
401/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 435/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
402# include <stdint.h> 436# include <stdint.h>
… …
442#else 476#else
443# define EV_FREQUENT_CHECK do { } while (0) 477# define EV_FREQUENT_CHECK do { } while (0)
444#endif 478#endif
445 479
446/* 480/*
447 * This is used to avoid floating point rounding problems. 481 * This is used to work around floating point rounding problems.
448 * It is added to ev_rt_now when scheduling periodics
449 * to ensure progress, time-wise, even when rounding
450 * errors are against us.
451 * This value is good at least till the year 4000. 482 * This value is good at least till the year 4000.
452 * Better solutions welcome.
453 */ 483 */
454#define TIME_EPSILON 0.0001220703125 /* 1/8192 */ 484#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
485/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
455 486
456#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 487#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
457#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 488#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
458 489
459#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 490#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
460#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 491#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
461 492
493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
494/* ECB.H BEGIN */
495/*
496 * libecb - http://software.schmorp.de/pkg/libecb
497 *
498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
499 * Copyright (©) 2011 Emanuele Giaquinta
500 * All rights reserved.
501 *
502 * Redistribution and use in source and binary forms, with or without modifica-
503 * tion, are permitted provided that the following conditions are met:
504 *
505 * 1. Redistributions of source code must retain the above copyright notice,
506 * this list of conditions and the following disclaimer.
507 *
508 * 2. Redistributions in binary form must reproduce the above copyright
509 * notice, this list of conditions and the following disclaimer in the
510 * documentation and/or other materials provided with the distribution.
511 *
512 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
513 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
514 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
515 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
516 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
517 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
518 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
519 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
520 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
521 * OF THE POSSIBILITY OF SUCH DAMAGE.
522 *
523 * Alternatively, the contents of this file may be used under the terms of
524 * the GNU General Public License ("GPL") version 2 or any later version,
525 * in which case the provisions of the GPL are applicable instead of
526 * the above. If you wish to allow the use of your version of this file
527 * only under the terms of the GPL and not to allow others to use your
528 * version of this file under the BSD license, indicate your decision
529 * by deleting the provisions above and replace them with the notice
530 * and other provisions required by the GPL. If you do not delete the
531 * provisions above, a recipient may use your version of this file under
532 * either the BSD or the GPL.
533 */
534
535#ifndef ECB_H
536#define ECB_H
537
538/* 16 bits major, 16 bits minor */
539#define ECB_VERSION 0x00010005
540
541#ifdef _WIN32
542 typedef signed char int8_t;
543 typedef unsigned char uint8_t;
544 typedef signed short int16_t;
545 typedef unsigned short uint16_t;
546 typedef signed int int32_t;
547 typedef unsigned int uint32_t;
462#if __GNUC__ >= 4 548 #if __GNUC__
549 typedef signed long long int64_t;
550 typedef unsigned long long uint64_t;
551 #else /* _MSC_VER || __BORLANDC__ */
552 typedef signed __int64 int64_t;
553 typedef unsigned __int64 uint64_t;
554 #endif
555 #ifdef _WIN64
556 #define ECB_PTRSIZE 8
557 typedef uint64_t uintptr_t;
558 typedef int64_t intptr_t;
559 #else
560 #define ECB_PTRSIZE 4
561 typedef uint32_t uintptr_t;
562 typedef int32_t intptr_t;
563 #endif
564#else
565 #include <inttypes.h>
566 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
567 #define ECB_PTRSIZE 8
568 #else
569 #define ECB_PTRSIZE 4
570 #endif
571#endif
572
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575
576/* work around x32 idiocy by defining proper macros */
577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
578 #if _ILP32
579 #define ECB_AMD64_X32 1
580 #else
581 #define ECB_AMD64 1
582 #endif
583#endif
584
585/* many compilers define _GNUC_ to some versions but then only implement
586 * what their idiot authors think are the "more important" extensions,
587 * causing enormous grief in return for some better fake benchmark numbers.
588 * or so.
589 * we try to detect these and simply assume they are not gcc - if they have
590 * an issue with that they should have done it right in the first place.
591 */
592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
593 #define ECB_GCC_VERSION(major,minor) 0
594#else
595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
596#endif
597
598#define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor)))
599
600#if __clang__ && defined __has_builtin
601 #define ECB_CLANG_BUILTIN(x) __has_builtin (x)
602#else
603 #define ECB_CLANG_BUILTIN(x) 0
604#endif
605
606#if __clang__ && defined __has_extension
607 #define ECB_CLANG_EXTENSION(x) __has_extension (x)
608#else
609 #define ECB_CLANG_EXTENSION(x) 0
610#endif
611
612#define ECB_CPP (__cplusplus+0)
613#define ECB_CPP11 (__cplusplus >= 201103L)
614
615#if ECB_CPP
616 #define ECB_C 0
617 #define ECB_STDC_VERSION 0
618#else
619 #define ECB_C 1
620 #define ECB_STDC_VERSION __STDC_VERSION__
621#endif
622
623#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
624#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
625
626#if ECB_CPP
627 #define ECB_EXTERN_C extern "C"
628 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
629 #define ECB_EXTERN_C_END }
630#else
631 #define ECB_EXTERN_C extern
632 #define ECB_EXTERN_C_BEG
633 #define ECB_EXTERN_C_END
634#endif
635
636/*****************************************************************************/
637
638/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
639/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
640
641#if ECB_NO_THREADS
642 #define ECB_NO_SMP 1
643#endif
644
645#if ECB_NO_SMP
646 #define ECB_MEMORY_FENCE do { } while (0)
647#endif
648
649/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
650#if __xlC__ && ECB_CPP
651 #include <builtins.h>
652#endif
653
654#if 1400 <= _MSC_VER
655 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
656#endif
657
658#ifndef ECB_MEMORY_FENCE
659 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
660 #if __i386 || __i386__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
662 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
663 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
664 #elif ECB_GCC_AMD64
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670 #elif defined __ARM_ARCH_2__ \
671 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
673 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
674 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
675 || defined __ARM_ARCH_5TEJ__
676 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
677 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
678 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
679 || defined __ARM_ARCH_6T2__
680 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
681 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
682 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
684 #elif __aarch64__
685 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
686 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
687 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
688 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
689 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
690 #elif defined __s390__ || defined __s390x__
691 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
692 #elif defined __mips__
693 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
694 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
695 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
696 #elif defined __alpha__
697 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
698 #elif defined __hppa__
699 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
700 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
701 #elif defined __ia64__
702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
703 #elif defined __m68k__
704 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
705 #elif defined __m88k__
706 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
707 #elif defined __sh__
708 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
709 #endif
710 #endif
711#endif
712
713#ifndef ECB_MEMORY_FENCE
714 #if ECB_GCC_VERSION(4,7)
715 /* see comment below (stdatomic.h) about the C11 memory model. */
716 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
717 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
718 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
719
720 #elif ECB_CLANG_EXTENSION(c_atomic)
721 /* see comment below (stdatomic.h) about the C11 memory model. */
722 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
723 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
724 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
725
726 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
727 #define ECB_MEMORY_FENCE __sync_synchronize ()
728 #elif _MSC_VER >= 1500 /* VC++ 2008 */
729 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
730 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
731 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
732 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
733 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
734 #elif _MSC_VER >= 1400 /* VC++ 2005 */
735 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
736 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
737 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
738 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
739 #elif defined _WIN32
740 #include <WinNT.h>
741 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
742 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
743 #include <mbarrier.h>
744 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
745 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
746 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
747 #elif __xlC__
748 #define ECB_MEMORY_FENCE __sync ()
749 #endif
750#endif
751
752#ifndef ECB_MEMORY_FENCE
753 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
754 /* we assume that these memory fences work on all variables/all memory accesses, */
755 /* not just C11 atomics and atomic accesses */
756 #include <stdatomic.h>
757 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
758 /* any fence other than seq_cst, which isn't very efficient for us. */
759 /* Why that is, we don't know - either the C11 memory model is quite useless */
760 /* for most usages, or gcc and clang have a bug */
761 /* I *currently* lean towards the latter, and inefficiently implement */
762 /* all three of ecb's fences as a seq_cst fence */
763 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
764 /* for all __atomic_thread_fence's except seq_cst */
765 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
766 #endif
767#endif
768
769#ifndef ECB_MEMORY_FENCE
770 #if !ECB_AVOID_PTHREADS
771 /*
772 * if you get undefined symbol references to pthread_mutex_lock,
773 * or failure to find pthread.h, then you should implement
774 * the ECB_MEMORY_FENCE operations for your cpu/compiler
775 * OR provide pthread.h and link against the posix thread library
776 * of your system.
777 */
778 #include <pthread.h>
779 #define ECB_NEEDS_PTHREADS 1
780 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
781
782 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
783 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
784 #endif
785#endif
786
787#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
788 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
789#endif
790
791#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
792 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
793#endif
794
795/*****************************************************************************/
796
797#if ECB_CPP
798 #define ecb_inline static inline
799#elif ECB_GCC_VERSION(2,5)
800 #define ecb_inline static __inline__
801#elif ECB_C99
802 #define ecb_inline static inline
803#else
804 #define ecb_inline static
805#endif
806
807#if ECB_GCC_VERSION(3,3)
808 #define ecb_restrict __restrict__
809#elif ECB_C99
810 #define ecb_restrict restrict
811#else
812 #define ecb_restrict
813#endif
814
815typedef int ecb_bool;
816
817#define ECB_CONCAT_(a, b) a ## b
818#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
819#define ECB_STRINGIFY_(a) # a
820#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
821#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
822
823#define ecb_function_ ecb_inline
824
825#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
826 #define ecb_attribute(attrlist) __attribute__ (attrlist)
827#else
828 #define ecb_attribute(attrlist)
829#endif
830
831#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
832 #define ecb_is_constant(expr) __builtin_constant_p (expr)
833#else
834 /* possible C11 impl for integral types
835 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
836 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
837
838 #define ecb_is_constant(expr) 0
839#endif
840
841#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
463# define expect(expr,value) __builtin_expect ((expr),(value)) 842 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
464# define noinline __attribute__ ((noinline))
465#else 843#else
466# define expect(expr,value) (expr) 844 #define ecb_expect(expr,value) (expr)
467# define noinline
468# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
469# define inline
470# endif 845#endif
471#endif
472 846
847#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
848 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
849#else
850 #define ecb_prefetch(addr,rw,locality)
851#endif
852
853/* no emulation for ecb_decltype */
854#if ECB_CPP11
855 // older implementations might have problems with decltype(x)::type, work around it
856 template<class T> struct ecb_decltype_t { typedef T type; };
857 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
858#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
859 #define ecb_decltype(x) __typeof__ (x)
860#endif
861
862#if _MSC_VER >= 1300
863 #define ecb_deprecated __declspec (deprecated)
864#else
865 #define ecb_deprecated ecb_attribute ((__deprecated__))
866#endif
867
868#if _MSC_VER >= 1500
869 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
870#elif ECB_GCC_VERSION(4,5)
871 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
872#else
873 #define ecb_deprecated_message(msg) ecb_deprecated
874#endif
875
876#if _MSC_VER >= 1400
877 #define ecb_noinline __declspec (noinline)
878#else
879 #define ecb_noinline ecb_attribute ((__noinline__))
880#endif
881
882#define ecb_unused ecb_attribute ((__unused__))
883#define ecb_const ecb_attribute ((__const__))
884#define ecb_pure ecb_attribute ((__pure__))
885
886#if ECB_C11 || __IBMC_NORETURN
887 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
888 #define ecb_noreturn _Noreturn
889#elif ECB_CPP11
890 #define ecb_noreturn [[noreturn]]
891#elif _MSC_VER >= 1200
892 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
893 #define ecb_noreturn __declspec (noreturn)
894#else
895 #define ecb_noreturn ecb_attribute ((__noreturn__))
896#endif
897
898#if ECB_GCC_VERSION(4,3)
899 #define ecb_artificial ecb_attribute ((__artificial__))
900 #define ecb_hot ecb_attribute ((__hot__))
901 #define ecb_cold ecb_attribute ((__cold__))
902#else
903 #define ecb_artificial
904 #define ecb_hot
905 #define ecb_cold
906#endif
907
908/* put around conditional expressions if you are very sure that the */
909/* expression is mostly true or mostly false. note that these return */
910/* booleans, not the expression. */
473#define expect_false(expr) expect ((expr) != 0, 0) 911#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
474#define expect_true(expr) expect ((expr) != 0, 1) 912#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
913/* for compatibility to the rest of the world */
914#define ecb_likely(expr) ecb_expect_true (expr)
915#define ecb_unlikely(expr) ecb_expect_false (expr)
916
917/* count trailing zero bits and count # of one bits */
918#if ECB_GCC_VERSION(3,4) \
919 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
920 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
921 && ECB_CLANG_BUILTIN(__builtin_popcount))
922 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
923 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
924 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
925 #define ecb_ctz32(x) __builtin_ctz (x)
926 #define ecb_ctz64(x) __builtin_ctzll (x)
927 #define ecb_popcount32(x) __builtin_popcount (x)
928 /* no popcountll */
929#else
930 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
931 ecb_function_ ecb_const int
932 ecb_ctz32 (uint32_t x)
933 {
934#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
935 unsigned long r;
936 _BitScanForward (&r, x);
937 return (int)r;
938#else
939 int r = 0;
940
941 x &= ~x + 1; /* this isolates the lowest bit */
942
943#if ECB_branchless_on_i386
944 r += !!(x & 0xaaaaaaaa) << 0;
945 r += !!(x & 0xcccccccc) << 1;
946 r += !!(x & 0xf0f0f0f0) << 2;
947 r += !!(x & 0xff00ff00) << 3;
948 r += !!(x & 0xffff0000) << 4;
949#else
950 if (x & 0xaaaaaaaa) r += 1;
951 if (x & 0xcccccccc) r += 2;
952 if (x & 0xf0f0f0f0) r += 4;
953 if (x & 0xff00ff00) r += 8;
954 if (x & 0xffff0000) r += 16;
955#endif
956
957 return r;
958#endif
959 }
960
961 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
962 ecb_function_ ecb_const int
963 ecb_ctz64 (uint64_t x)
964 {
965#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
966 unsigned long r;
967 _BitScanForward64 (&r, x);
968 return (int)r;
969#else
970 int shift = x & 0xffffffff ? 0 : 32;
971 return ecb_ctz32 (x >> shift) + shift;
972#endif
973 }
974
975 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
976 ecb_function_ ecb_const int
977 ecb_popcount32 (uint32_t x)
978 {
979 x -= (x >> 1) & 0x55555555;
980 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
981 x = ((x >> 4) + x) & 0x0f0f0f0f;
982 x *= 0x01010101;
983
984 return x >> 24;
985 }
986
987 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
988 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
989 {
990#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
991 unsigned long r;
992 _BitScanReverse (&r, x);
993 return (int)r;
994#else
995 int r = 0;
996
997 if (x >> 16) { x >>= 16; r += 16; }
998 if (x >> 8) { x >>= 8; r += 8; }
999 if (x >> 4) { x >>= 4; r += 4; }
1000 if (x >> 2) { x >>= 2; r += 2; }
1001 if (x >> 1) { r += 1; }
1002
1003 return r;
1004#endif
1005 }
1006
1007 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
1008 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
1009 {
1010#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1011 unsigned long r;
1012 _BitScanReverse64 (&r, x);
1013 return (int)r;
1014#else
1015 int r = 0;
1016
1017 if (x >> 32) { x >>= 32; r += 32; }
1018
1019 return r + ecb_ld32 (x);
1020#endif
1021 }
1022#endif
1023
1024ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1025ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1026ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1027ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1028
1029ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
1030ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
1031{
1032 return ( (x * 0x0802U & 0x22110U)
1033 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
1034}
1035
1036ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
1037ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
1038{
1039 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
1040 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
1041 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
1042 x = ( x >> 8 ) | ( x << 8);
1043
1044 return x;
1045}
1046
1047ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
1048ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
1049{
1050 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
1051 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
1052 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
1053 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
1054 x = ( x >> 16 ) | ( x << 16);
1055
1056 return x;
1057}
1058
1059/* popcount64 is only available on 64 bit cpus as gcc builtin */
1060/* so for this version we are lazy */
1061ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
1062ecb_function_ ecb_const int
1063ecb_popcount64 (uint64_t x)
1064{
1065 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
1066}
1067
1068ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
1069ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
1070ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
1071ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
1072ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
1073ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
1074ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
1075ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
1076
1077ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
1078ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
1079ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
1080ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
1081ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1082ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1083ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1084ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1085
1086#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1087 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1088 #define ecb_bswap16(x) __builtin_bswap16 (x)
1089 #else
1090 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1091 #endif
1092 #define ecb_bswap32(x) __builtin_bswap32 (x)
1093 #define ecb_bswap64(x) __builtin_bswap64 (x)
1094#elif _MSC_VER
1095 #include <stdlib.h>
1096 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1097 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1098 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1099#else
1100 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1101 ecb_function_ ecb_const uint16_t
1102 ecb_bswap16 (uint16_t x)
1103 {
1104 return ecb_rotl16 (x, 8);
1105 }
1106
1107 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
1108 ecb_function_ ecb_const uint32_t
1109 ecb_bswap32 (uint32_t x)
1110 {
1111 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1112 }
1113
1114 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
1115 ecb_function_ ecb_const uint64_t
1116 ecb_bswap64 (uint64_t x)
1117 {
1118 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1119 }
1120#endif
1121
1122#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
1123 #define ecb_unreachable() __builtin_unreachable ()
1124#else
1125 /* this seems to work fine, but gcc always emits a warning for it :/ */
1126 ecb_inline ecb_noreturn void ecb_unreachable (void);
1127 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
1128#endif
1129
1130/* try to tell the compiler that some condition is definitely true */
1131#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1132
1133ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1134ecb_inline ecb_const uint32_t
1135ecb_byteorder_helper (void)
1136{
1137 /* the union code still generates code under pressure in gcc, */
1138 /* but less than using pointers, and always seems to */
1139 /* successfully return a constant. */
1140 /* the reason why we have this horrible preprocessor mess */
1141 /* is to avoid it in all cases, at least on common architectures */
1142 /* or when using a recent enough gcc version (>= 4.6) */
1143#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1144 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1145 #define ECB_LITTLE_ENDIAN 1
1146 return 0x44332211;
1147#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1148 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1149 #define ECB_BIG_ENDIAN 1
1150 return 0x11223344;
1151#else
1152 union
1153 {
1154 uint8_t c[4];
1155 uint32_t u;
1156 } u = { 0x11, 0x22, 0x33, 0x44 };
1157 return u.u;
1158#endif
1159}
1160
1161ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1162ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1163ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1164ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1165
1166#if ECB_GCC_VERSION(3,0) || ECB_C99
1167 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1168#else
1169 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1170#endif
1171
1172#if ECB_CPP
1173 template<typename T>
1174 static inline T ecb_div_rd (T val, T div)
1175 {
1176 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1177 }
1178 template<typename T>
1179 static inline T ecb_div_ru (T val, T div)
1180 {
1181 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1182 }
1183#else
1184 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1185 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1186#endif
1187
1188#if ecb_cplusplus_does_not_suck
1189 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1190 template<typename T, int N>
1191 static inline int ecb_array_length (const T (&arr)[N])
1192 {
1193 return N;
1194 }
1195#else
1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1197#endif
1198
1199ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200ecb_function_ ecb_const uint32_t
1201ecb_binary16_to_binary32 (uint32_t x)
1202{
1203 unsigned int s = (x & 0x8000) << (31 - 15);
1204 int e = (x >> 10) & 0x001f;
1205 unsigned int m = x & 0x03ff;
1206
1207 if (ecb_expect_false (e == 31))
1208 /* infinity or NaN */
1209 e = 255 - (127 - 15);
1210 else if (ecb_expect_false (!e))
1211 {
1212 if (ecb_expect_true (!m))
1213 /* zero, handled by code below by forcing e to 0 */
1214 e = 0 - (127 - 15);
1215 else
1216 {
1217 /* subnormal, renormalise */
1218 unsigned int s = 10 - ecb_ld32 (m);
1219
1220 m = (m << s) & 0x3ff; /* mask implicit bit */
1221 e -= s - 1;
1222 }
1223 }
1224
1225 /* e and m now are normalised, or zero, (or inf or nan) */
1226 e += 127 - 15;
1227
1228 return s | (e << 23) | (m << (23 - 10));
1229}
1230
1231ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1232ecb_function_ ecb_const uint16_t
1233ecb_binary32_to_binary16 (uint32_t x)
1234{
1235 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1236 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1237 unsigned int m = x & 0x007fffff;
1238
1239 x &= 0x7fffffff;
1240
1241 /* if it's within range of binary16 normals, use fast path */
1242 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1243 {
1244 /* mantissa round-to-even */
1245 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1246
1247 /* handle overflow */
1248 if (ecb_expect_false (m >= 0x00800000))
1249 {
1250 m >>= 1;
1251 e += 1;
1252 }
1253
1254 return s | (e << 10) | (m >> (23 - 10));
1255 }
1256
1257 /* handle large numbers and infinity */
1258 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1259 return s | 0x7c00;
1260
1261 /* handle zero, subnormals and small numbers */
1262 if (ecb_expect_true (x < 0x38800000))
1263 {
1264 /* zero */
1265 if (ecb_expect_true (!x))
1266 return s;
1267
1268 /* handle subnormals */
1269
1270 /* too small, will be zero */
1271 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1272 return s;
1273
1274 m |= 0x00800000; /* make implicit bit explicit */
1275
1276 /* very tricky - we need to round to the nearest e (+10) bit value */
1277 {
1278 unsigned int bits = 14 - e;
1279 unsigned int half = (1 << (bits - 1)) - 1;
1280 unsigned int even = (m >> bits) & 1;
1281
1282 /* if this overflows, we will end up with a normalised number */
1283 m = (m + half + even) >> bits;
1284 }
1285
1286 return s | m;
1287 }
1288
1289 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1290 m >>= 13;
1291
1292 return s | 0x7c00 | m | !m;
1293}
1294
1295/*******************************************************************************/
1296/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1297
1298/* basically, everything uses "ieee pure-endian" floating point numbers */
1299/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1300#if 0 \
1301 || __i386 || __i386__ \
1302 || ECB_GCC_AMD64 \
1303 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1304 || defined __s390__ || defined __s390x__ \
1305 || defined __mips__ \
1306 || defined __alpha__ \
1307 || defined __hppa__ \
1308 || defined __ia64__ \
1309 || defined __m68k__ \
1310 || defined __m88k__ \
1311 || defined __sh__ \
1312 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1313 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1314 || defined __aarch64__
1315 #define ECB_STDFP 1
1316 #include <string.h> /* for memcpy */
1317#else
1318 #define ECB_STDFP 0
1319#endif
1320
1321#ifndef ECB_NO_LIBM
1322
1323 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1324
1325 /* only the oldest of old doesn't have this one. solaris. */
1326 #ifdef INFINITY
1327 #define ECB_INFINITY INFINITY
1328 #else
1329 #define ECB_INFINITY HUGE_VAL
1330 #endif
1331
1332 #ifdef NAN
1333 #define ECB_NAN NAN
1334 #else
1335 #define ECB_NAN ECB_INFINITY
1336 #endif
1337
1338 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1339 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1340 #define ecb_frexpf(x,e) frexpf ((x), (e))
1341 #else
1342 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1343 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1344 #endif
1345
1346 /* convert a float to ieee single/binary32 */
1347 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1348 ecb_function_ ecb_const uint32_t
1349 ecb_float_to_binary32 (float x)
1350 {
1351 uint32_t r;
1352
1353 #if ECB_STDFP
1354 memcpy (&r, &x, 4);
1355 #else
1356 /* slow emulation, works for anything but -0 */
1357 uint32_t m;
1358 int e;
1359
1360 if (x == 0e0f ) return 0x00000000U;
1361 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1362 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1363 if (x != x ) return 0x7fbfffffU;
1364
1365 m = ecb_frexpf (x, &e) * 0x1000000U;
1366
1367 r = m & 0x80000000U;
1368
1369 if (r)
1370 m = -m;
1371
1372 if (e <= -126)
1373 {
1374 m &= 0xffffffU;
1375 m >>= (-125 - e);
1376 e = -126;
1377 }
1378
1379 r |= (e + 126) << 23;
1380 r |= m & 0x7fffffU;
1381 #endif
1382
1383 return r;
1384 }
1385
1386 /* converts an ieee single/binary32 to a float */
1387 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1388 ecb_function_ ecb_const float
1389 ecb_binary32_to_float (uint32_t x)
1390 {
1391 float r;
1392
1393 #if ECB_STDFP
1394 memcpy (&r, &x, 4);
1395 #else
1396 /* emulation, only works for normals and subnormals and +0 */
1397 int neg = x >> 31;
1398 int e = (x >> 23) & 0xffU;
1399
1400 x &= 0x7fffffU;
1401
1402 if (e)
1403 x |= 0x800000U;
1404 else
1405 e = 1;
1406
1407 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1408 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1409
1410 r = neg ? -r : r;
1411 #endif
1412
1413 return r;
1414 }
1415
1416 /* convert a double to ieee double/binary64 */
1417 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1418 ecb_function_ ecb_const uint64_t
1419 ecb_double_to_binary64 (double x)
1420 {
1421 uint64_t r;
1422
1423 #if ECB_STDFP
1424 memcpy (&r, &x, 8);
1425 #else
1426 /* slow emulation, works for anything but -0 */
1427 uint64_t m;
1428 int e;
1429
1430 if (x == 0e0 ) return 0x0000000000000000U;
1431 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1432 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1433 if (x != x ) return 0X7ff7ffffffffffffU;
1434
1435 m = frexp (x, &e) * 0x20000000000000U;
1436
1437 r = m & 0x8000000000000000;;
1438
1439 if (r)
1440 m = -m;
1441
1442 if (e <= -1022)
1443 {
1444 m &= 0x1fffffffffffffU;
1445 m >>= (-1021 - e);
1446 e = -1022;
1447 }
1448
1449 r |= ((uint64_t)(e + 1022)) << 52;
1450 r |= m & 0xfffffffffffffU;
1451 #endif
1452
1453 return r;
1454 }
1455
1456 /* converts an ieee double/binary64 to a double */
1457 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1458 ecb_function_ ecb_const double
1459 ecb_binary64_to_double (uint64_t x)
1460 {
1461 double r;
1462
1463 #if ECB_STDFP
1464 memcpy (&r, &x, 8);
1465 #else
1466 /* emulation, only works for normals and subnormals and +0 */
1467 int neg = x >> 63;
1468 int e = (x >> 52) & 0x7ffU;
1469
1470 x &= 0xfffffffffffffU;
1471
1472 if (e)
1473 x |= 0x10000000000000U;
1474 else
1475 e = 1;
1476
1477 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1478 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1479
1480 r = neg ? -r : r;
1481 #endif
1482
1483 return r;
1484 }
1485
1486 /* convert a float to ieee half/binary16 */
1487 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1488 ecb_function_ ecb_const uint16_t
1489 ecb_float_to_binary16 (float x)
1490 {
1491 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1492 }
1493
1494 /* convert an ieee half/binary16 to float */
1495 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1496 ecb_function_ ecb_const float
1497 ecb_binary16_to_float (uint16_t x)
1498 {
1499 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1500 }
1501
1502#endif
1503
1504#endif
1505
1506/* ECB.H END */
1507
1508#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1509/* if your architecture doesn't need memory fences, e.g. because it is
1510 * single-cpu/core, or if you use libev in a project that doesn't use libev
1511 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1512 * libev, in which cases the memory fences become nops.
1513 * alternatively, you can remove this #error and link against libpthread,
1514 * which will then provide the memory fences.
1515 */
1516# error "memory fences not defined for your architecture, please report"
1517#endif
1518
1519#ifndef ECB_MEMORY_FENCE
1520# define ECB_MEMORY_FENCE do { } while (0)
1521# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1522# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1523#endif
1524
1525#define expect_false(cond) ecb_expect_false (cond)
1526#define expect_true(cond) ecb_expect_true (cond)
1527#define noinline ecb_noinline
1528
475#define inline_size static inline 1529#define inline_size ecb_inline
476 1530
477#if EV_FEATURE_CODE 1531#if EV_FEATURE_CODE
478# define inline_speed static inline 1532# define inline_speed ecb_inline
479#else 1533#else
480# define inline_speed static noinline 1534# define inline_speed noinline static
481#endif 1535#endif
482 1536
483#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
484 1538
485#if EV_MINPRI == EV_MAXPRI 1539#if EV_MINPRI == EV_MAXPRI
… …
522# include "ev_win32.c" 1576# include "ev_win32.c"
523#endif 1577#endif
524 1578
525/*****************************************************************************/ 1579/*****************************************************************************/
526 1580
1581/* define a suitable floor function (only used by periodics atm) */
1582
1583#if EV_USE_FLOOR
1584# include <math.h>
1585# define ev_floor(v) floor (v)
1586#else
1587
1588#include <float.h>
1589
1590/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline
1592static ev_tstamp
1593ev_floor (ev_tstamp v)
1594{
1595 /* the choice of shift factor is not terribly important */
1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1598#else
1599 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1600#endif
1601
1602 /* argument too large for an unsigned long? */
1603 if (expect_false (v >= shift))
1604 {
1605 ev_tstamp f;
1606
1607 if (v == v - 1.)
1608 return v; /* very large number */
1609
1610 f = shift * ev_floor (v * (1. / shift));
1611 return f + ev_floor (v - f);
1612 }
1613
1614 /* special treatment for negative args? */
1615 if (expect_false (v < 0.))
1616 {
1617 ev_tstamp f = -ev_floor (-v);
1618
1619 return f - (f == v ? 0 : 1);
1620 }
1621
1622 /* fits into an unsigned long */
1623 return (unsigned long)v;
1624}
1625
1626#endif
1627
1628/*****************************************************************************/
1629
527#ifdef __linux 1630#ifdef __linux
528# include <sys/utsname.h> 1631# include <sys/utsname.h>
529#endif 1632#endif
530 1633
1634noinline ecb_cold
531static unsigned int noinline 1635static unsigned int
532ev_linux_version (void) 1636ev_linux_version (void)
533{ 1637{
534#ifdef __linux 1638#ifdef __linux
1639 unsigned int v = 0;
535 struct utsname buf; 1640 struct utsname buf;
536 unsigned int v;
537 int i; 1641 int i;
538 char *p = buf.release; 1642 char *p = buf.release;
539 1643
540 if (uname (&buf)) 1644 if (uname (&buf))
541 return 0; 1645 return 0;
… …
565} 1669}
566 1670
567/*****************************************************************************/ 1671/*****************************************************************************/
568 1672
569#if EV_AVOID_STDIO 1673#if EV_AVOID_STDIO
570static void noinline 1674noinline ecb_cold
1675static void
571ev_printerr (const char *msg) 1676ev_printerr (const char *msg)
572{ 1677{
573 write (STDERR_FILENO, msg, strlen (msg)); 1678 write (STDERR_FILENO, msg, strlen (msg));
574} 1679}
575#endif 1680#endif
576 1681
577static void (*syserr_cb)(const char *msg); 1682static void (*syserr_cb)(const char *msg) EV_THROW;
578 1683
1684ecb_cold
579void 1685void
580ev_set_syserr_cb (void (*cb)(const char *msg)) 1686ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
581{ 1687{
582 syserr_cb = cb; 1688 syserr_cb = cb;
583} 1689}
584 1690
585static void noinline 1691noinline ecb_cold
1692static void
586ev_syserr (const char *msg) 1693ev_syserr (const char *msg)
587{ 1694{
588 if (!msg) 1695 if (!msg)
589 msg = "(libev) system error"; 1696 msg = "(libev) system error";
590 1697
591 if (syserr_cb) 1698 if (syserr_cb)
592 syserr_cb (msg); 1699 syserr_cb (msg);
593 else 1700 else
594 { 1701 {
595#if EV_AVOID_STDIO 1702#if EV_AVOID_STDIO
596 const char *err = strerror (errno);
597
598 ev_printerr (msg); 1703 ev_printerr (msg);
599 ev_printerr (": "); 1704 ev_printerr (": ");
600 ev_printerr (err); 1705 ev_printerr (strerror (errno));
601 ev_printerr ("\n"); 1706 ev_printerr ("\n");
602#else 1707#else
603 perror (msg); 1708 perror (msg);
604#endif 1709#endif
605 abort (); 1710 abort ();
606 } 1711 }
607} 1712}
608 1713
609static void * 1714static void *
610ev_realloc_emul (void *ptr, long size) 1715ev_realloc_emul (void *ptr, long size) EV_THROW
611{ 1716{
612#if __GLIBC__
613 return realloc (ptr, size);
614#else
615 /* some systems, notably openbsd and darwin, fail to properly 1717 /* some systems, notably openbsd and darwin, fail to properly
616 * implement realloc (x, 0) (as required by both ansi c-89 and 1718 * implement realloc (x, 0) (as required by both ansi c-89 and
617 * the single unix specification, so work around them here. 1719 * the single unix specification, so work around them here.
1720 * recently, also (at least) fedora and debian started breaking it,
1721 * despite documenting it otherwise.
618 */ 1722 */
619 1723
620 if (size) 1724 if (size)
621 return realloc (ptr, size); 1725 return realloc (ptr, size);
622 1726
623 free (ptr); 1727 free (ptr);
624 return 0; 1728 return 0;
625#endif
626} 1729}
627 1730
628static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1731static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
629 1732
1733ecb_cold
630void 1734void
631ev_set_allocator (void *(*cb)(void *ptr, long size)) 1735ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
632{ 1736{
633 alloc = cb; 1737 alloc = cb;
634} 1738}
635 1739
636inline_speed void * 1740inline_speed void *
… …
639 ptr = alloc (ptr, size); 1743 ptr = alloc (ptr, size);
640 1744
641 if (!ptr && size) 1745 if (!ptr && size)
642 { 1746 {
643#if EV_AVOID_STDIO 1747#if EV_AVOID_STDIO
644 ev_printerr ("libev: memory allocation failed, aborting.\n"); 1748 ev_printerr ("(libev) memory allocation failed, aborting.\n");
645#else 1749#else
646 fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); 1750 fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size);
647#endif 1751#endif
648 abort (); 1752 abort ();
649 } 1753 }
650 1754
651 return ptr; 1755 return ptr;
… …
668 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1772 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */
669 unsigned char unused; 1773 unsigned char unused;
670#if EV_USE_EPOLL 1774#if EV_USE_EPOLL
671 unsigned int egen; /* generation counter to counter epoll bugs */ 1775 unsigned int egen; /* generation counter to counter epoll bugs */
672#endif 1776#endif
673#if EV_SELECT_IS_WINSOCKET 1777#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
674 SOCKET handle; 1778 SOCKET handle;
1779#endif
1780#if EV_USE_IOCP
1781 OVERLAPPED or, ow;
675#endif 1782#endif
676} ANFD; 1783} ANFD;
677 1784
678/* stores the pending event set for a given watcher */ 1785/* stores the pending event set for a given watcher */
679typedef struct 1786typedef struct
… …
721 #undef VAR 1828 #undef VAR
722 }; 1829 };
723 #include "ev_wrap.h" 1830 #include "ev_wrap.h"
724 1831
725 static struct ev_loop default_loop_struct; 1832 static struct ev_loop default_loop_struct;
726 struct ev_loop *ev_default_loop_ptr; 1833 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
727 1834
728#else 1835#else
729 1836
730 ev_tstamp ev_rt_now; 1837 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
731 #define VAR(name,decl) static decl; 1838 #define VAR(name,decl) static decl;
732 #include "ev_vars.h" 1839 #include "ev_vars.h"
733 #undef VAR 1840 #undef VAR
734 1841
735 static int ev_default_loop_ptr; 1842 static int ev_default_loop_ptr;
… …
750 1857
751/*****************************************************************************/ 1858/*****************************************************************************/
752 1859
753#ifndef EV_HAVE_EV_TIME 1860#ifndef EV_HAVE_EV_TIME
754ev_tstamp 1861ev_tstamp
755ev_time (void) 1862ev_time (void) EV_THROW
756{ 1863{
757#if EV_USE_REALTIME 1864#if EV_USE_REALTIME
758 if (expect_true (have_realtime)) 1865 if (expect_true (have_realtime))
759 { 1866 {
760 struct timespec ts; 1867 struct timespec ts;
… …
784 return ev_time (); 1891 return ev_time ();
785} 1892}
786 1893
787#if EV_MULTIPLICITY 1894#if EV_MULTIPLICITY
788ev_tstamp 1895ev_tstamp
789ev_now (EV_P) 1896ev_now (EV_P) EV_THROW
790{ 1897{
791 return ev_rt_now; 1898 return ev_rt_now;
792} 1899}
793#endif 1900#endif
794 1901
795void 1902void
796ev_sleep (ev_tstamp delay) 1903ev_sleep (ev_tstamp delay) EV_THROW
797{ 1904{
798 if (delay > 0.) 1905 if (delay > 0.)
799 { 1906 {
800#if EV_USE_NANOSLEEP 1907#if EV_USE_NANOSLEEP
801 struct timespec ts; 1908 struct timespec ts;
802 1909
803 EV_TS_SET (ts, delay); 1910 EV_TS_SET (ts, delay);
804 nanosleep (&ts, 0); 1911 nanosleep (&ts, 0);
805#elif defined(_WIN32) 1912#elif defined _WIN32
1913 /* maybe this should round up, as ms is very low resolution */
1914 /* compared to select (µs) or nanosleep (ns) */
806 Sleep ((unsigned long)(delay * 1e3)); 1915 Sleep ((unsigned long)(delay * 1e3));
807#else 1916#else
808 struct timeval tv; 1917 struct timeval tv;
809 1918
810 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1919 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
829 1938
830 do 1939 do
831 ncur <<= 1; 1940 ncur <<= 1;
832 while (cnt > ncur); 1941 while (cnt > ncur);
833 1942
834 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1943 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
835 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1944 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
836 { 1945 {
837 ncur *= elem; 1946 ncur *= elem;
838 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1947 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
839 ncur = ncur - sizeof (void *) * 4; 1948 ncur = ncur - sizeof (void *) * 4;
… …
841 } 1950 }
842 1951
843 return ncur; 1952 return ncur;
844} 1953}
845 1954
846static noinline void * 1955noinline ecb_cold
1956static void *
847array_realloc (int elem, void *base, int *cur, int cnt) 1957array_realloc (int elem, void *base, int *cur, int cnt)
848{ 1958{
849 *cur = array_nextsize (elem, *cur, cnt); 1959 *cur = array_nextsize (elem, *cur, cnt);
850 return ev_realloc (base, elem * *cur); 1960 return ev_realloc (base, elem * *cur);
851} 1961}
… …
854 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1964 memset ((void *)(base), 0, sizeof (*(base)) * (count))
855 1965
856#define array_needsize(type,base,cur,cnt,init) \ 1966#define array_needsize(type,base,cur,cnt,init) \
857 if (expect_false ((cnt) > (cur))) \ 1967 if (expect_false ((cnt) > (cur))) \
858 { \ 1968 { \
859 int ocur_ = (cur); \ 1969 ecb_unused int ocur_ = (cur); \
860 (base) = (type *)array_realloc \ 1970 (base) = (type *)array_realloc \
861 (sizeof (type), (base), &(cur), (cnt)); \ 1971 (sizeof (type), (base), &(cur), (cnt)); \
862 init ((base) + (ocur_), (cur) - ocur_); \ 1972 init ((base) + (ocur_), (cur) - ocur_); \
863 } 1973 }
864 1974
… …
876 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1986 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
877 1987
878/*****************************************************************************/ 1988/*****************************************************************************/
879 1989
880/* dummy callback for pending events */ 1990/* dummy callback for pending events */
881static void noinline 1991noinline
1992static void
882pendingcb (EV_P_ ev_prepare *w, int revents) 1993pendingcb (EV_P_ ev_prepare *w, int revents)
883{ 1994{
884} 1995}
885 1996
886void noinline 1997noinline
1998void
887ev_feed_event (EV_P_ void *w, int revents) 1999ev_feed_event (EV_P_ void *w, int revents) EV_THROW
888{ 2000{
889 W w_ = (W)w; 2001 W w_ = (W)w;
890 int pri = ABSPRI (w_); 2002 int pri = ABSPRI (w_);
891 2003
892 if (expect_false (w_->pending)) 2004 if (expect_false (w_->pending))
… …
896 w_->pending = ++pendingcnt [pri]; 2008 w_->pending = ++pendingcnt [pri];
897 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2009 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
898 pendings [pri][w_->pending - 1].w = w_; 2010 pendings [pri][w_->pending - 1].w = w_;
899 pendings [pri][w_->pending - 1].events = revents; 2011 pendings [pri][w_->pending - 1].events = revents;
900 } 2012 }
2013
2014 pendingpri = NUMPRI - 1;
901} 2015}
902 2016
903inline_speed void 2017inline_speed void
904feed_reverse (EV_P_ W w) 2018feed_reverse (EV_P_ W w)
905{ 2019{
… …
951 if (expect_true (!anfd->reify)) 2065 if (expect_true (!anfd->reify))
952 fd_event_nocheck (EV_A_ fd, revents); 2066 fd_event_nocheck (EV_A_ fd, revents);
953} 2067}
954 2068
955void 2069void
956ev_feed_fd_event (EV_P_ int fd, int revents) 2070ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
957{ 2071{
958 if (fd >= 0 && fd < anfdmax) 2072 if (fd >= 0 && fd < anfdmax)
959 fd_event_nocheck (EV_A_ fd, revents); 2073 fd_event_nocheck (EV_A_ fd, revents);
960} 2074}
961 2075
… …
964inline_size void 2078inline_size void
965fd_reify (EV_P) 2079fd_reify (EV_P)
966{ 2080{
967 int i; 2081 int i;
968 2082
2083#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2084 for (i = 0; i < fdchangecnt; ++i)
2085 {
2086 int fd = fdchanges [i];
2087 ANFD *anfd = anfds + fd;
2088
2089 if (anfd->reify & EV__IOFDSET && anfd->head)
2090 {
2091 SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd);
2092
2093 if (handle != anfd->handle)
2094 {
2095 unsigned long arg;
2096
2097 assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0));
2098
2099 /* handle changed, but fd didn't - we need to do it in two steps */
2100 backend_modify (EV_A_ fd, anfd->events, 0);
2101 anfd->events = 0;
2102 anfd->handle = handle;
2103 }
2104 }
2105 }
2106#endif
2107
969 for (i = 0; i < fdchangecnt; ++i) 2108 for (i = 0; i < fdchangecnt; ++i)
970 { 2109 {
971 int fd = fdchanges [i]; 2110 int fd = fdchanges [i];
972 ANFD *anfd = anfds + fd; 2111 ANFD *anfd = anfds + fd;
973 ev_io *w; 2112 ev_io *w;
… …
975 unsigned char o_events = anfd->events; 2114 unsigned char o_events = anfd->events;
976 unsigned char o_reify = anfd->reify; 2115 unsigned char o_reify = anfd->reify;
977 2116
978 anfd->reify = 0; 2117 anfd->reify = 0;
979 2118
980#if EV_SELECT_IS_WINSOCKET
981 if (o_reify & EV__IOFDSET)
982 {
983 unsigned long arg;
984 anfd->handle = EV_FD_TO_WIN32_HANDLE (fd);
985 assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0));
986 }
987#endif
988
989 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2119 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
990 { 2120 {
991 anfd->events = 0; 2121 anfd->events = 0;
992 2122
993 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2123 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
… …
1003 2133
1004 fdchangecnt = 0; 2134 fdchangecnt = 0;
1005} 2135}
1006 2136
1007/* something about the given fd changed */ 2137/* something about the given fd changed */
1008inline_size void 2138inline_size
2139void
1009fd_change (EV_P_ int fd, int flags) 2140fd_change (EV_P_ int fd, int flags)
1010{ 2141{
1011 unsigned char reify = anfds [fd].reify; 2142 unsigned char reify = anfds [fd].reify;
1012 anfds [fd].reify |= flags; 2143 anfds [fd].reify |= flags;
1013 2144
… …
1018 fdchanges [fdchangecnt - 1] = fd; 2149 fdchanges [fdchangecnt - 1] = fd;
1019 } 2150 }
1020} 2151}
1021 2152
1022/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2153/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1023inline_speed void 2154inline_speed ecb_cold void
1024fd_kill (EV_P_ int fd) 2155fd_kill (EV_P_ int fd)
1025{ 2156{
1026 ev_io *w; 2157 ev_io *w;
1027 2158
1028 while ((w = (ev_io *)anfds [fd].head)) 2159 while ((w = (ev_io *)anfds [fd].head))
… …
1031 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2162 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1032 } 2163 }
1033} 2164}
1034 2165
1035/* check whether the given fd is actually valid, for error recovery */ 2166/* check whether the given fd is actually valid, for error recovery */
1036inline_size int 2167inline_size ecb_cold int
1037fd_valid (int fd) 2168fd_valid (int fd)
1038{ 2169{
1039#ifdef _WIN32 2170#ifdef _WIN32
1040 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2171 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1041#else 2172#else
1042 return fcntl (fd, F_GETFD) != -1; 2173 return fcntl (fd, F_GETFD) != -1;
1043#endif 2174#endif
1044} 2175}
1045 2176
1046/* called on EBADF to verify fds */ 2177/* called on EBADF to verify fds */
1047static void noinline 2178noinline ecb_cold
2179static void
1048fd_ebadf (EV_P) 2180fd_ebadf (EV_P)
1049{ 2181{
1050 int fd; 2182 int fd;
1051 2183
1052 for (fd = 0; fd < anfdmax; ++fd) 2184 for (fd = 0; fd < anfdmax; ++fd)
… …
1054 if (!fd_valid (fd) && errno == EBADF) 2186 if (!fd_valid (fd) && errno == EBADF)
1055 fd_kill (EV_A_ fd); 2187 fd_kill (EV_A_ fd);
1056} 2188}
1057 2189
1058/* called on ENOMEM in select/poll to kill some fds and retry */ 2190/* called on ENOMEM in select/poll to kill some fds and retry */
1059static void noinline 2191noinline ecb_cold
2192static void
1060fd_enomem (EV_P) 2193fd_enomem (EV_P)
1061{ 2194{
1062 int fd; 2195 int fd;
1063 2196
1064 for (fd = anfdmax; fd--; ) 2197 for (fd = anfdmax; fd--; )
… …
1068 break; 2201 break;
1069 } 2202 }
1070} 2203}
1071 2204
1072/* usually called after fork if backend needs to re-arm all fds from scratch */ 2205/* usually called after fork if backend needs to re-arm all fds from scratch */
1073static void noinline 2206noinline
2207static void
1074fd_rearm_all (EV_P) 2208fd_rearm_all (EV_P)
1075{ 2209{
1076 int fd; 2210 int fd;
1077 2211
1078 for (fd = 0; fd < anfdmax; ++fd) 2212 for (fd = 0; fd < anfdmax; ++fd)
… …
1259 2393
1260/*****************************************************************************/ 2394/*****************************************************************************/
1261 2395
1262#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1263 2397
1264static void noinline 2398noinline ecb_cold
2399static void
1265evpipe_init (EV_P) 2400evpipe_init (EV_P)
1266{ 2401{
1267 if (!ev_is_active (&pipe_w)) 2402 if (!ev_is_active (&pipe_w))
1268 { 2403 {
2404 int fds [2];
2405
1269# if EV_USE_EVENTFD 2406# if EV_USE_EVENTFD
2407 fds [0] = -1;
1270 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2408 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1271 if (evfd < 0 && errno == EINVAL) 2409 if (fds [1] < 0 && errno == EINVAL)
1272 evfd = eventfd (0, 0); 2410 fds [1] = eventfd (0, 0);
1273 2411
1274 if (evfd >= 0) 2412 if (fds [1] < 0)
2413# endif
1275 { 2414 {
2415 while (pipe (fds))
2416 ev_syserr ("(libev) error creating signal/async pipe");
2417
2418 fd_intern (fds [0]);
2419 }
2420
1276 evpipe [0] = -1; 2421 evpipe [0] = fds [0];
1277 fd_intern (evfd); /* doing it twice doesn't hurt */ 2422
1278 ev_io_set (&pipe_w, evfd, EV_READ); 2423 if (evpipe [1] < 0)
2424 evpipe [1] = fds [1]; /* first call, set write fd */
2425 else
2426 {
2427 /* on subsequent calls, do not change evpipe [1] */
2428 /* so that evpipe_write can always rely on its value. */
2429 /* this branch does not do anything sensible on windows, */
2430 /* so must not be executed on windows */
2431
2432 dup2 (fds [1], evpipe [1]);
2433 close (fds [1]);
2434 }
2435
2436 fd_intern (evpipe [1]);
2437
2438 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2439 ev_io_start (EV_A_ &pipe_w);
2440 ev_unref (EV_A); /* watcher should not keep loop alive */
2441 }
2442}
2443
2444inline_speed void
2445evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2446{
2447 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2448
2449 if (expect_true (*flag))
2450 return;
2451
2452 *flag = 1;
2453 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2454
2455 pipe_write_skipped = 1;
2456
2457 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2458
2459 if (pipe_write_wanted)
2460 {
2461 int old_errno;
2462
2463 pipe_write_skipped = 0;
2464 ECB_MEMORY_FENCE_RELEASE;
2465
2466 old_errno = errno; /* save errno because write will clobber it */
2467
2468#if EV_USE_EVENTFD
2469 if (evpipe [0] < 0)
2470 {
2471 uint64_t counter = 1;
2472 write (evpipe [1], &counter, sizeof (uint64_t));
1279 } 2473 }
1280 else 2474 else
1281# endif 2475#endif
1282 { 2476 {
1283 while (pipe (evpipe)) 2477#ifdef _WIN32
1284 ev_syserr ("(libev) error creating signal/async pipe"); 2478 WSABUF buf;
1285 2479 DWORD sent;
1286 fd_intern (evpipe [0]); 2480 buf.buf = &buf;
1287 fd_intern (evpipe [1]); 2481 buf.len = 1;
1288 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2482 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2483#else
2484 write (evpipe [1], &(evpipe [1]), 1);
2485#endif
1289 } 2486 }
1290
1291 ev_io_start (EV_A_ &pipe_w);
1292 ev_unref (EV_A); /* watcher should not keep loop alive */
1293 }
1294}
1295
1296inline_size void
1297evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1298{
1299 if (!*flag)
1300 {
1301 int old_errno = errno; /* save errno because write might clobber it */
1302 char dummy;
1303
1304 *flag = 1;
1305
1306#if EV_USE_EVENTFD
1307 if (evfd >= 0)
1308 {
1309 uint64_t counter = 1;
1310 write (evfd, &counter, sizeof (uint64_t));
1311 }
1312 else
1313#endif
1314 /* win32 people keep sending patches that change this write() to send() */
1315 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1316 /* so when you think this write should be a send instead, please find out */
1317 /* where your send() is from - it's definitely not the microsoft send, and */
1318 /* tell me. thank you. */
1319 write (evpipe [1], &dummy, 1);
1320 2487
1321 errno = old_errno; 2488 errno = old_errno;
1322 } 2489 }
1323} 2490}
1324 2491
… …
1327static void 2494static void
1328pipecb (EV_P_ ev_io *iow, int revents) 2495pipecb (EV_P_ ev_io *iow, int revents)
1329{ 2496{
1330 int i; 2497 int i;
1331 2498
2499 if (revents & EV_READ)
2500 {
1332#if EV_USE_EVENTFD 2501#if EV_USE_EVENTFD
1333 if (evfd >= 0) 2502 if (evpipe [0] < 0)
1334 { 2503 {
1335 uint64_t counter; 2504 uint64_t counter;
1336 read (evfd, &counter, sizeof (uint64_t)); 2505 read (evpipe [1], &counter, sizeof (uint64_t));
1337 } 2506 }
1338 else 2507 else
1339#endif 2508#endif
1340 { 2509 {
1341 char dummy; 2510 char dummy[4];
1342 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2511#ifdef _WIN32
2512 WSABUF buf;
2513 DWORD recvd;
2514 DWORD flags = 0;
2515 buf.buf = dummy;
2516 buf.len = sizeof (dummy);
2517 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2518#else
1343 read (evpipe [0], &dummy, 1); 2519 read (evpipe [0], &dummy, sizeof (dummy));
2520#endif
2521 }
1344 } 2522 }
1345 2523
2524 pipe_write_skipped = 0;
2525
2526 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
2527
2528#if EV_SIGNAL_ENABLE
1346 if (sig_pending) 2529 if (sig_pending)
1347 { 2530 {
1348 sig_pending = 0; 2531 sig_pending = 0;
2532
2533 ECB_MEMORY_FENCE;
1349 2534
1350 for (i = EV_NSIG - 1; i--; ) 2535 for (i = EV_NSIG - 1; i--; )
1351 if (expect_false (signals [i].pending)) 2536 if (expect_false (signals [i].pending))
1352 ev_feed_signal_event (EV_A_ i + 1); 2537 ev_feed_signal_event (EV_A_ i + 1);
1353 } 2538 }
2539#endif
1354 2540
1355#if EV_ASYNC_ENABLE 2541#if EV_ASYNC_ENABLE
1356 if (async_pending) 2542 if (async_pending)
1357 { 2543 {
1358 async_pending = 0; 2544 async_pending = 0;
2545
2546 ECB_MEMORY_FENCE;
1359 2547
1360 for (i = asynccnt; i--; ) 2548 for (i = asynccnt; i--; )
1361 if (asyncs [i]->sent) 2549 if (asyncs [i]->sent)
1362 { 2550 {
1363 asyncs [i]->sent = 0; 2551 asyncs [i]->sent = 0;
2552 ECB_MEMORY_FENCE_RELEASE;
1364 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2553 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1365 } 2554 }
1366 } 2555 }
1367#endif 2556#endif
1368} 2557}
1369 2558
1370/*****************************************************************************/ 2559/*****************************************************************************/
1371 2560
2561void
2562ev_feed_signal (int signum) EV_THROW
2563{
2564#if EV_MULTIPLICITY
2565 EV_P;
2566 ECB_MEMORY_FENCE_ACQUIRE;
2567 EV_A = signals [signum - 1].loop;
2568
2569 if (!EV_A)
2570 return;
2571#endif
2572
2573 signals [signum - 1].pending = 1;
2574 evpipe_write (EV_A_ &sig_pending);
2575}
2576
1372static void 2577static void
1373ev_sighandler (int signum) 2578ev_sighandler (int signum)
1374{ 2579{
1375#if EV_MULTIPLICITY
1376 EV_P = signals [signum - 1].loop;
1377#endif
1378
1379#ifdef _WIN32 2580#ifdef _WIN32
1380 signal (signum, ev_sighandler); 2581 signal (signum, ev_sighandler);
1381#endif 2582#endif
1382 2583
1383 signals [signum - 1].pending = 1; 2584 ev_feed_signal (signum);
1384 evpipe_write (EV_A_ &sig_pending);
1385} 2585}
1386 2586
1387void noinline 2587noinline
2588void
1388ev_feed_signal_event (EV_P_ int signum) 2589ev_feed_signal_event (EV_P_ int signum) EV_THROW
1389{ 2590{
1390 WL w; 2591 WL w;
1391 2592
1392 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2593 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1393 return; 2594 return;
1394 2595
1395 --signum; 2596 --signum;
1396 2597
1397#if EV_MULTIPLICITY 2598#if EV_MULTIPLICITY
… …
1401 if (expect_false (signals [signum].loop != EV_A)) 2602 if (expect_false (signals [signum].loop != EV_A))
1402 return; 2603 return;
1403#endif 2604#endif
1404 2605
1405 signals [signum].pending = 0; 2606 signals [signum].pending = 0;
2607 ECB_MEMORY_FENCE_RELEASE;
1406 2608
1407 for (w = signals [signum].head; w; w = w->next) 2609 for (w = signals [signum].head; w; w = w->next)
1408 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2610 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1409} 2611}
1410 2612
… …
1489 2691
1490#endif 2692#endif
1491 2693
1492/*****************************************************************************/ 2694/*****************************************************************************/
1493 2695
2696#if EV_USE_IOCP
2697# include "ev_iocp.c"
2698#endif
1494#if EV_USE_PORT 2699#if EV_USE_PORT
1495# include "ev_port.c" 2700# include "ev_port.c"
1496#endif 2701#endif
1497#if EV_USE_KQUEUE 2702#if EV_USE_KQUEUE
1498# include "ev_kqueue.c" 2703# include "ev_kqueue.c"
… …
1505#endif 2710#endif
1506#if EV_USE_SELECT 2711#if EV_USE_SELECT
1507# include "ev_select.c" 2712# include "ev_select.c"
1508#endif 2713#endif
1509 2714
1510int 2715ecb_cold int
1511ev_version_major (void) 2716ev_version_major (void) EV_THROW
1512{ 2717{
1513 return EV_VERSION_MAJOR; 2718 return EV_VERSION_MAJOR;
1514} 2719}
1515 2720
1516int 2721ecb_cold int
1517ev_version_minor (void) 2722ev_version_minor (void) EV_THROW
1518{ 2723{
1519 return EV_VERSION_MINOR; 2724 return EV_VERSION_MINOR;
1520} 2725}
1521 2726
1522/* return true if we are running with elevated privileges and should ignore env variables */ 2727/* return true if we are running with elevated privileges and should ignore env variables */
1523int inline_size 2728inline_size ecb_cold int
1524enable_secure (void) 2729enable_secure (void)
1525{ 2730{
1526#ifdef _WIN32 2731#ifdef _WIN32
1527 return 0; 2732 return 0;
1528#else 2733#else
1529 return getuid () != geteuid () 2734 return getuid () != geteuid ()
1530 || getgid () != getegid (); 2735 || getgid () != getegid ();
1531#endif 2736#endif
1532} 2737}
1533 2738
2739ecb_cold
1534unsigned int 2740unsigned int
1535ev_supported_backends (void) 2741ev_supported_backends (void) EV_THROW
1536{ 2742{
1537 unsigned int flags = 0; 2743 unsigned int flags = 0;
1538 2744
1539 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1540 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2746 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1543 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1544 2750
1545 return flags; 2751 return flags;
1546} 2752}
1547 2753
2754ecb_cold
1548unsigned int 2755unsigned int
1549ev_recommended_backends (void) 2756ev_recommended_backends (void) EV_THROW
1550{ 2757{
1551 unsigned int flags = ev_supported_backends (); 2758 unsigned int flags = ev_supported_backends ();
1552 2759
1553#ifndef __NetBSD__ 2760#ifndef __NetBSD__
1554 /* kqueue is borked on everything but netbsd apparently */ 2761 /* kqueue is borked on everything but netbsd apparently */
… …
1565#endif 2772#endif
1566 2773
1567 return flags; 2774 return flags;
1568} 2775}
1569 2776
2777ecb_cold
1570unsigned int 2778unsigned int
1571ev_embeddable_backends (void) 2779ev_embeddable_backends (void) EV_THROW
1572{ 2780{
1573 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1574 2782
1575 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2783 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1576 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2784 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1578 2786
1579 return flags; 2787 return flags;
1580} 2788}
1581 2789
1582unsigned int 2790unsigned int
1583ev_backend (EV_P) 2791ev_backend (EV_P) EV_THROW
1584{ 2792{
1585 return backend; 2793 return backend;
1586} 2794}
1587 2795
1588#if EV_FEATURE_API 2796#if EV_FEATURE_API
1589unsigned int 2797unsigned int
1590ev_iteration (EV_P) 2798ev_iteration (EV_P) EV_THROW
1591{ 2799{
1592 return loop_count; 2800 return loop_count;
1593} 2801}
1594 2802
1595unsigned int 2803unsigned int
1596ev_depth (EV_P) 2804ev_depth (EV_P) EV_THROW
1597{ 2805{
1598 return loop_depth; 2806 return loop_depth;
1599} 2807}
1600 2808
1601void 2809void
1602ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2810ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1603{ 2811{
1604 io_blocktime = interval; 2812 io_blocktime = interval;
1605} 2813}
1606 2814
1607void 2815void
1608ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2816ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1609{ 2817{
1610 timeout_blocktime = interval; 2818 timeout_blocktime = interval;
1611} 2819}
1612 2820
1613void 2821void
1614ev_set_userdata (EV_P_ void *data) 2822ev_set_userdata (EV_P_ void *data) EV_THROW
1615{ 2823{
1616 userdata = data; 2824 userdata = data;
1617} 2825}
1618 2826
1619void * 2827void *
1620ev_userdata (EV_P) 2828ev_userdata (EV_P) EV_THROW
1621{ 2829{
1622 return userdata; 2830 return userdata;
1623} 2831}
1624 2832
2833void
1625void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2834ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1626{ 2835{
1627 invoke_cb = invoke_pending_cb; 2836 invoke_cb = invoke_pending_cb;
1628} 2837}
1629 2838
2839void
1630void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2840ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1631{ 2841{
1632 release_cb = release; 2842 release_cb = release;
1633 acquire_cb = acquire; 2843 acquire_cb = acquire;
1634} 2844}
1635#endif 2845#endif
1636 2846
1637/* initialise a loop structure, must be zero-initialised */ 2847/* initialise a loop structure, must be zero-initialised */
1638static void noinline 2848noinline ecb_cold
2849static void
1639loop_init (EV_P_ unsigned int flags) 2850loop_init (EV_P_ unsigned int flags) EV_THROW
1640{ 2851{
1641 if (!backend) 2852 if (!backend)
1642 { 2853 {
2854 origflags = flags;
2855
1643#if EV_USE_REALTIME 2856#if EV_USE_REALTIME
1644 if (!have_realtime) 2857 if (!have_realtime)
1645 { 2858 {
1646 struct timespec ts; 2859 struct timespec ts;
1647 2860
… …
1669 if (!(flags & EVFLAG_NOENV) 2882 if (!(flags & EVFLAG_NOENV)
1670 && !enable_secure () 2883 && !enable_secure ()
1671 && getenv ("LIBEV_FLAGS")) 2884 && getenv ("LIBEV_FLAGS"))
1672 flags = atoi (getenv ("LIBEV_FLAGS")); 2885 flags = atoi (getenv ("LIBEV_FLAGS"));
1673 2886
1674 ev_rt_now = ev_time (); 2887 ev_rt_now = ev_time ();
1675 mn_now = get_clock (); 2888 mn_now = get_clock ();
1676 now_floor = mn_now; 2889 now_floor = mn_now;
1677 rtmn_diff = ev_rt_now - mn_now; 2890 rtmn_diff = ev_rt_now - mn_now;
1678#if EV_FEATURE_API 2891#if EV_FEATURE_API
1679 invoke_cb = ev_invoke_pending; 2892 invoke_cb = ev_invoke_pending;
1680#endif 2893#endif
1681 2894
1682 io_blocktime = 0.; 2895 io_blocktime = 0.;
1683 timeout_blocktime = 0.; 2896 timeout_blocktime = 0.;
1684 backend = 0; 2897 backend = 0;
1685 backend_fd = -1; 2898 backend_fd = -1;
1686 sig_pending = 0; 2899 sig_pending = 0;
1687#if EV_ASYNC_ENABLE 2900#if EV_ASYNC_ENABLE
1688 async_pending = 0; 2901 async_pending = 0;
1689#endif 2902#endif
2903 pipe_write_skipped = 0;
2904 pipe_write_wanted = 0;
2905 evpipe [0] = -1;
2906 evpipe [1] = -1;
1690#if EV_USE_INOTIFY 2907#if EV_USE_INOTIFY
1691 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2908 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1692#endif 2909#endif
1693#if EV_USE_SIGNALFD 2910#if EV_USE_SIGNALFD
1694 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2911 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1695#endif 2912#endif
1696 2913
1697 if (!(flags & 0x0000ffffU)) 2914 if (!(flags & EVBACKEND_MASK))
1698 flags |= ev_recommended_backends (); 2915 flags |= ev_recommended_backends ();
1699 2916
2917#if EV_USE_IOCP
2918 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2919#endif
1700#if EV_USE_PORT 2920#if EV_USE_PORT
1701 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 2921 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
1702#endif 2922#endif
1703#if EV_USE_KQUEUE 2923#if EV_USE_KQUEUE
1704 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 2924 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags);
… …
1721#endif 2941#endif
1722 } 2942 }
1723} 2943}
1724 2944
1725/* free up a loop structure */ 2945/* free up a loop structure */
1726static void noinline 2946ecb_cold
2947void
1727loop_destroy (EV_P) 2948ev_loop_destroy (EV_P)
1728{ 2949{
1729 int i; 2950 int i;
2951
2952#if EV_MULTIPLICITY
2953 /* mimic free (0) */
2954 if (!EV_A)
2955 return;
2956#endif
2957
2958#if EV_CLEANUP_ENABLE
2959 /* queue cleanup watchers (and execute them) */
2960 if (expect_false (cleanupcnt))
2961 {
2962 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2963 EV_INVOKE_PENDING;
2964 }
2965#endif
2966
2967#if EV_CHILD_ENABLE
2968 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2969 {
2970 ev_ref (EV_A); /* child watcher */
2971 ev_signal_stop (EV_A_ &childev);
2972 }
2973#endif
1730 2974
1731 if (ev_is_active (&pipe_w)) 2975 if (ev_is_active (&pipe_w))
1732 { 2976 {
1733 /*ev_ref (EV_A);*/ 2977 /*ev_ref (EV_A);*/
1734 /*ev_io_stop (EV_A_ &pipe_w);*/ 2978 /*ev_io_stop (EV_A_ &pipe_w);*/
1735 2979
1736#if EV_USE_EVENTFD
1737 if (evfd >= 0)
1738 close (evfd);
1739#endif
1740
1741 if (evpipe [0] >= 0)
1742 {
1743 EV_WIN32_CLOSE_FD (evpipe [0]); 2980 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1744 EV_WIN32_CLOSE_FD (evpipe [1]); 2981 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1745 }
1746 } 2982 }
1747 2983
1748#if EV_USE_SIGNALFD 2984#if EV_USE_SIGNALFD
1749 if (ev_is_active (&sigfd_w)) 2985 if (ev_is_active (&sigfd_w))
1750 close (sigfd); 2986 close (sigfd);
… …
1756#endif 2992#endif
1757 2993
1758 if (backend_fd >= 0) 2994 if (backend_fd >= 0)
1759 close (backend_fd); 2995 close (backend_fd);
1760 2996
2997#if EV_USE_IOCP
2998 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2999#endif
1761#if EV_USE_PORT 3000#if EV_USE_PORT
1762 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3001 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
1763#endif 3002#endif
1764#if EV_USE_KQUEUE 3003#if EV_USE_KQUEUE
1765 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3004 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A);
… …
1792 array_free (periodic, EMPTY); 3031 array_free (periodic, EMPTY);
1793#endif 3032#endif
1794#if EV_FORK_ENABLE 3033#if EV_FORK_ENABLE
1795 array_free (fork, EMPTY); 3034 array_free (fork, EMPTY);
1796#endif 3035#endif
3036#if EV_CLEANUP_ENABLE
3037 array_free (cleanup, EMPTY);
3038#endif
1797 array_free (prepare, EMPTY); 3039 array_free (prepare, EMPTY);
1798 array_free (check, EMPTY); 3040 array_free (check, EMPTY);
1799#if EV_ASYNC_ENABLE 3041#if EV_ASYNC_ENABLE
1800 array_free (async, EMPTY); 3042 array_free (async, EMPTY);
1801#endif 3043#endif
1802 3044
1803 backend = 0; 3045 backend = 0;
3046
3047#if EV_MULTIPLICITY
3048 if (ev_is_default_loop (EV_A))
3049#endif
3050 ev_default_loop_ptr = 0;
3051#if EV_MULTIPLICITY
3052 else
3053 ev_free (EV_A);
3054#endif
1804} 3055}
1805 3056
1806#if EV_USE_INOTIFY 3057#if EV_USE_INOTIFY
1807inline_size void infy_fork (EV_P); 3058inline_size void infy_fork (EV_P);
1808#endif 3059#endif
… …
1821#endif 3072#endif
1822#if EV_USE_INOTIFY 3073#if EV_USE_INOTIFY
1823 infy_fork (EV_A); 3074 infy_fork (EV_A);
1824#endif 3075#endif
1825 3076
3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1826 if (ev_is_active (&pipe_w)) 3078 if (ev_is_active (&pipe_w) && postfork != 2)
1827 { 3079 {
1828 /* this "locks" the handlers against writing to the pipe */ 3080 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1829 /* while we modify the fd vars */
1830 sig_pending = 1;
1831#if EV_ASYNC_ENABLE
1832 async_pending = 1;
1833#endif
1834 3081
1835 ev_ref (EV_A); 3082 ev_ref (EV_A);
1836 ev_io_stop (EV_A_ &pipe_w); 3083 ev_io_stop (EV_A_ &pipe_w);
1837 3084
1838#if EV_USE_EVENTFD
1839 if (evfd >= 0)
1840 close (evfd);
1841#endif
1842
1843 if (evpipe [0] >= 0) 3085 if (evpipe [0] >= 0)
1844 {
1845 EV_WIN32_CLOSE_FD (evpipe [0]); 3086 EV_WIN32_CLOSE_FD (evpipe [0]);
1846 EV_WIN32_CLOSE_FD (evpipe [1]);
1847 }
1848 3087
1849#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1850 evpipe_init (EV_A); 3088 evpipe_init (EV_A);
1851 /* now iterate over everything, in case we missed something */ 3089 /* iterate over everything, in case we missed something before */
1852 pipecb (EV_A_ &pipe_w, EV_READ); 3090 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1853#endif
1854 } 3091 }
3092#endif
1855 3093
1856 postfork = 0; 3094 postfork = 0;
1857} 3095}
1858 3096
1859#if EV_MULTIPLICITY 3097#if EV_MULTIPLICITY
1860 3098
3099ecb_cold
1861struct ev_loop * 3100struct ev_loop *
1862ev_loop_new (unsigned int flags) 3101ev_loop_new (unsigned int flags) EV_THROW
1863{ 3102{
1864 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1865 3104
1866 memset (EV_A, 0, sizeof (struct ev_loop)); 3105 memset (EV_A, 0, sizeof (struct ev_loop));
1867 loop_init (EV_A_ flags); 3106 loop_init (EV_A_ flags);
1868 3107
1869 if (ev_backend (EV_A)) 3108 if (ev_backend (EV_A))
1870 return EV_A; 3109 return EV_A;
1871 3110
3111 ev_free (EV_A);
1872 return 0; 3112 return 0;
1873} 3113}
1874 3114
1875void
1876ev_loop_destroy (EV_P)
1877{
1878 loop_destroy (EV_A);
1879 ev_free (loop);
1880}
1881
1882void
1883ev_loop_fork (EV_P)
1884{
1885 postfork = 1; /* must be in line with ev_default_fork */
1886}
1887#endif /* multiplicity */ 3115#endif /* multiplicity */
1888 3116
1889#if EV_VERIFY 3117#if EV_VERIFY
1890static void noinline 3118noinline ecb_cold
3119static void
1891verify_watcher (EV_P_ W w) 3120verify_watcher (EV_P_ W w)
1892{ 3121{
1893 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3122 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
1894 3123
1895 if (w->pending) 3124 if (w->pending)
1896 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3125 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
1897} 3126}
1898 3127
1899static void noinline 3128noinline ecb_cold
3129static void
1900verify_heap (EV_P_ ANHE *heap, int N) 3130verify_heap (EV_P_ ANHE *heap, int N)
1901{ 3131{
1902 int i; 3132 int i;
1903 3133
1904 for (i = HEAP0; i < N + HEAP0; ++i) 3134 for (i = HEAP0; i < N + HEAP0; ++i)
… …
1909 3139
1910 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
1911 } 3141 }
1912} 3142}
1913 3143
1914static void noinline 3144noinline ecb_cold
3145static void
1915array_verify (EV_P_ W *ws, int cnt) 3146array_verify (EV_P_ W *ws, int cnt)
1916{ 3147{
1917 while (cnt--) 3148 while (cnt--)
1918 { 3149 {
1919 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3150 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
1921 } 3152 }
1922} 3153}
1923#endif 3154#endif
1924 3155
1925#if EV_FEATURE_API 3156#if EV_FEATURE_API
1926void 3157void ecb_cold
1927ev_verify (EV_P) 3158ev_verify (EV_P) EV_THROW
1928{ 3159{
1929#if EV_VERIFY 3160#if EV_VERIFY
1930 int i; 3161 int i;
1931 WL w; 3162 WL w, w2;
1932 3163
1933 assert (activecnt >= -1); 3164 assert (activecnt >= -1);
1934 3165
1935 assert (fdchangemax >= fdchangecnt); 3166 assert (fdchangemax >= fdchangecnt);
1936 for (i = 0; i < fdchangecnt; ++i) 3167 for (i = 0; i < fdchangecnt; ++i)
1937 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 3168 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
1938 3169
1939 assert (anfdmax >= 0); 3170 assert (anfdmax >= 0);
1940 for (i = 0; i < anfdmax; ++i) 3171 for (i = 0; i < anfdmax; ++i)
3172 {
3173 int j = 0;
3174
1941 for (w = anfds [i].head; w; w = w->next) 3175 for (w = w2 = anfds [i].head; w; w = w->next)
1942 { 3176 {
1943 verify_watcher (EV_A_ (W)w); 3177 verify_watcher (EV_A_ (W)w);
3178
3179 if (j++ & 1)
3180 {
3181 assert (("libev: io watcher list contains a loop", w != w2));
3182 w2 = w2->next;
3183 }
3184
1944 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 3185 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
1945 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 3186 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
1946 } 3187 }
3188 }
1947 3189
1948 assert (timermax >= timercnt); 3190 assert (timermax >= timercnt);
1949 verify_heap (EV_A_ timers, timercnt); 3191 verify_heap (EV_A_ timers, timercnt);
1950 3192
1951#if EV_PERIODIC_ENABLE 3193#if EV_PERIODIC_ENABLE
… …
1966#if EV_FORK_ENABLE 3208#if EV_FORK_ENABLE
1967 assert (forkmax >= forkcnt); 3209 assert (forkmax >= forkcnt);
1968 array_verify (EV_A_ (W *)forks, forkcnt); 3210 array_verify (EV_A_ (W *)forks, forkcnt);
1969#endif 3211#endif
1970 3212
3213#if EV_CLEANUP_ENABLE
3214 assert (cleanupmax >= cleanupcnt);
3215 array_verify (EV_A_ (W *)cleanups, cleanupcnt);
3216#endif
3217
1971#if EV_ASYNC_ENABLE 3218#if EV_ASYNC_ENABLE
1972 assert (asyncmax >= asynccnt); 3219 assert (asyncmax >= asynccnt);
1973 array_verify (EV_A_ (W *)asyncs, asynccnt); 3220 array_verify (EV_A_ (W *)asyncs, asynccnt);
1974#endif 3221#endif
1975 3222
… …
1992#endif 3239#endif
1993} 3240}
1994#endif 3241#endif
1995 3242
1996#if EV_MULTIPLICITY 3243#if EV_MULTIPLICITY
3244ecb_cold
1997struct ev_loop * 3245struct ev_loop *
1998ev_default_loop_init (unsigned int flags)
1999#else 3246#else
2000int 3247int
3248#endif
2001ev_default_loop (unsigned int flags) 3249ev_default_loop (unsigned int flags) EV_THROW
2002#endif
2003{ 3250{
2004 if (!ev_default_loop_ptr) 3251 if (!ev_default_loop_ptr)
2005 { 3252 {
2006#if EV_MULTIPLICITY 3253#if EV_MULTIPLICITY
2007 EV_P = ev_default_loop_ptr = &default_loop_struct; 3254 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2026 3273
2027 return ev_default_loop_ptr; 3274 return ev_default_loop_ptr;
2028} 3275}
2029 3276
2030void 3277void
2031ev_default_destroy (void) 3278ev_loop_fork (EV_P) EV_THROW
2032{ 3279{
2033#if EV_MULTIPLICITY 3280 postfork = 1;
2034 EV_P = ev_default_loop_ptr;
2035#endif
2036
2037 ev_default_loop_ptr = 0;
2038
2039#if EV_CHILD_ENABLE
2040 ev_ref (EV_A); /* child watcher */
2041 ev_signal_stop (EV_A_ &childev);
2042#endif
2043
2044 loop_destroy (EV_A);
2045}
2046
2047void
2048ev_default_fork (void)
2049{
2050#if EV_MULTIPLICITY
2051 EV_P = ev_default_loop_ptr;
2052#endif
2053
2054 postfork = 1; /* must be in line with ev_loop_fork */
2055} 3281}
2056 3282
2057/*****************************************************************************/ 3283/*****************************************************************************/
2058 3284
2059void 3285void
… …
2061{ 3287{
2062 EV_CB_INVOKE ((W)w, revents); 3288 EV_CB_INVOKE ((W)w, revents);
2063} 3289}
2064 3290
2065unsigned int 3291unsigned int
2066ev_pending_count (EV_P) 3292ev_pending_count (EV_P) EV_THROW
2067{ 3293{
2068 int pri; 3294 int pri;
2069 unsigned int count = 0; 3295 unsigned int count = 0;
2070 3296
2071 for (pri = NUMPRI; pri--; ) 3297 for (pri = NUMPRI; pri--; )
2072 count += pendingcnt [pri]; 3298 count += pendingcnt [pri];
2073 3299
2074 return count; 3300 return count;
2075} 3301}
2076 3302
2077void noinline 3303noinline
3304void
2078ev_invoke_pending (EV_P) 3305ev_invoke_pending (EV_P)
2079{ 3306{
2080 int pri; 3307 pendingpri = NUMPRI;
2081 3308
2082 for (pri = NUMPRI; pri--; ) 3309 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3310 {
3311 --pendingpri;
3312
2083 while (pendingcnt [pri]) 3313 while (pendingcnt [pendingpri])
2084 { 3314 {
2085 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3315 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2086 3316
2087 /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/
2088 /* ^ this is no longer true, as pending_w could be here */
2089
2090 p->w->pending = 0; 3317 p->w->pending = 0;
2091 EV_CB_INVOKE (p->w, p->events); 3318 EV_CB_INVOKE (p->w, p->events);
2092 EV_FREQUENT_CHECK; 3319 EV_FREQUENT_CHECK;
2093 } 3320 }
3321 }
2094} 3322}
2095 3323
2096#if EV_IDLE_ENABLE 3324#if EV_IDLE_ENABLE
2097/* make idle watchers pending. this handles the "call-idle */ 3325/* make idle watchers pending. this handles the "call-idle */
2098/* only when higher priorities are idle" logic */ 3326/* only when higher priorities are idle" logic */
… …
2155 feed_reverse_done (EV_A_ EV_TIMER); 3383 feed_reverse_done (EV_A_ EV_TIMER);
2156 } 3384 }
2157} 3385}
2158 3386
2159#if EV_PERIODIC_ENABLE 3387#if EV_PERIODIC_ENABLE
3388
3389noinline
3390static void
3391periodic_recalc (EV_P_ ev_periodic *w)
3392{
3393 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3394 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3395
3396 /* the above almost always errs on the low side */
3397 while (at <= ev_rt_now)
3398 {
3399 ev_tstamp nat = at + w->interval;
3400
3401 /* when resolution fails us, we use ev_rt_now */
3402 if (expect_false (nat == at))
3403 {
3404 at = ev_rt_now;
3405 break;
3406 }
3407
3408 at = nat;
3409 }
3410
3411 ev_at (w) = at;
3412}
3413
2160/* make periodics pending */ 3414/* make periodics pending */
2161inline_size void 3415inline_size void
2162periodics_reify (EV_P) 3416periodics_reify (EV_P)
2163{ 3417{
2164 EV_FREQUENT_CHECK; 3418 EV_FREQUENT_CHECK;
2165 3419
2166 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3420 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2167 { 3421 {
2168 int feed_count = 0;
2169
2170 do 3422 do
2171 { 3423 {
2172 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3424 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2173 3425
2174 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3426 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2183 ANHE_at_cache (periodics [HEAP0]); 3435 ANHE_at_cache (periodics [HEAP0]);
2184 downheap (periodics, periodiccnt, HEAP0); 3436 downheap (periodics, periodiccnt, HEAP0);
2185 } 3437 }
2186 else if (w->interval) 3438 else if (w->interval)
2187 { 3439 {
2188 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3440 periodic_recalc (EV_A_ w);
2189 /* if next trigger time is not sufficiently in the future, put it there */
2190 /* this might happen because of floating point inexactness */
2191 if (ev_at (w) - ev_rt_now < TIME_EPSILON)
2192 {
2193 ev_at (w) += w->interval;
2194
2195 /* if interval is unreasonably low we might still have a time in the past */
2196 /* so correct this. this will make the periodic very inexact, but the user */
2197 /* has effectively asked to get triggered more often than possible */
2198 if (ev_at (w) < ev_rt_now)
2199 ev_at (w) = ev_rt_now;
2200 }
2201
2202 ANHE_at_cache (periodics [HEAP0]); 3441 ANHE_at_cache (periodics [HEAP0]);
2203 downheap (periodics, periodiccnt, HEAP0); 3442 downheap (periodics, periodiccnt, HEAP0);
2204 } 3443 }
2205 else 3444 else
2206 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ 3445 ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */
… …
2214 } 3453 }
2215} 3454}
2216 3455
2217/* simply recalculate all periodics */ 3456/* simply recalculate all periodics */
2218/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3457/* TODO: maybe ensure that at least one event happens when jumping forward? */
2219static void noinline 3458noinline ecb_cold
3459static void
2220periodics_reschedule (EV_P) 3460periodics_reschedule (EV_P)
2221{ 3461{
2222 int i; 3462 int i;
2223 3463
2224 /* adjust periodics after time jump */ 3464 /* adjust periodics after time jump */
… …
2227 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); 3467 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]);
2228 3468
2229 if (w->reschedule_cb) 3469 if (w->reschedule_cb)
2230 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 3470 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2231 else if (w->interval) 3471 else if (w->interval)
2232 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; 3472 periodic_recalc (EV_A_ w);
2233 3473
2234 ANHE_at_cache (periodics [i]); 3474 ANHE_at_cache (periodics [i]);
2235 } 3475 }
2236 3476
2237 reheap (periodics, periodiccnt); 3477 reheap (periodics, periodiccnt);
2238} 3478}
2239#endif 3479#endif
2240 3480
2241/* adjust all timers by a given offset */ 3481/* adjust all timers by a given offset */
2242static void noinline 3482noinline ecb_cold
3483static void
2243timers_reschedule (EV_P_ ev_tstamp adjust) 3484timers_reschedule (EV_P_ ev_tstamp adjust)
2244{ 3485{
2245 int i; 3486 int i;
2246 3487
2247 for (i = 0; i < timercnt; ++i) 3488 for (i = 0; i < timercnt; ++i)
… …
2284 * doesn't hurt either as we only do this on time-jumps or 3525 * doesn't hurt either as we only do this on time-jumps or
2285 * in the unlikely event of having been preempted here. 3526 * in the unlikely event of having been preempted here.
2286 */ 3527 */
2287 for (i = 4; --i; ) 3528 for (i = 4; --i; )
2288 { 3529 {
3530 ev_tstamp diff;
2289 rtmn_diff = ev_rt_now - mn_now; 3531 rtmn_diff = ev_rt_now - mn_now;
2290 3532
3533 diff = odiff - rtmn_diff;
3534
2291 if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) 3535 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP))
2292 return; /* all is well */ 3536 return; /* all is well */
2293 3537
2294 ev_rt_now = ev_time (); 3538 ev_rt_now = ev_time ();
2295 mn_now = get_clock (); 3539 mn_now = get_clock ();
2296 now_floor = mn_now; 3540 now_floor = mn_now;
… …
2318 3562
2319 mn_now = ev_rt_now; 3563 mn_now = ev_rt_now;
2320 } 3564 }
2321} 3565}
2322 3566
2323void 3567int
2324ev_run (EV_P_ int flags) 3568ev_run (EV_P_ int flags)
2325{ 3569{
2326#if EV_FEATURE_API 3570#if EV_FEATURE_API
2327 ++loop_depth; 3571 ++loop_depth;
2328#endif 3572#endif
… …
2386 ev_tstamp prev_mn_now = mn_now; 3630 ev_tstamp prev_mn_now = mn_now;
2387 3631
2388 /* update time to cancel out callback processing overhead */ 3632 /* update time to cancel out callback processing overhead */
2389 time_update (EV_A_ 1e100); 3633 time_update (EV_A_ 1e100);
2390 3634
3635 /* from now on, we want a pipe-wake-up */
3636 pipe_write_wanted = 1;
3637
3638 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3639
2391 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) 3640 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2392 { 3641 {
2393 waittime = MAX_BLOCKTIME; 3642 waittime = MAX_BLOCKTIME;
2394 3643
2395 if (timercnt) 3644 if (timercnt)
2396 { 3645 {
2397 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; 3646 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
2398 if (waittime > to) waittime = to; 3647 if (waittime > to) waittime = to;
2399 } 3648 }
2400 3649
2401#if EV_PERIODIC_ENABLE 3650#if EV_PERIODIC_ENABLE
2402 if (periodiccnt) 3651 if (periodiccnt)
2403 { 3652 {
2404 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; 3653 ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now;
2405 if (waittime > to) waittime = to; 3654 if (waittime > to) waittime = to;
2406 } 3655 }
2407#endif 3656#endif
2408 3657
2409 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3658 /* don't let timeouts decrease the waittime below timeout_blocktime */
2410 if (expect_false (waittime < timeout_blocktime)) 3659 if (expect_false (waittime < timeout_blocktime))
2411 waittime = timeout_blocktime; 3660 waittime = timeout_blocktime;
3661
3662 /* at this point, we NEED to wait, so we have to ensure */
3663 /* to pass a minimum nonzero value to the backend */
3664 if (expect_false (waittime < backend_mintime))
3665 waittime = backend_mintime;
2412 3666
2413 /* extra check because io_blocktime is commonly 0 */ 3667 /* extra check because io_blocktime is commonly 0 */
2414 if (expect_false (io_blocktime)) 3668 if (expect_false (io_blocktime))
2415 { 3669 {
2416 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3670 sleeptime = io_blocktime - (mn_now - prev_mn_now);
2417 3671
2418 if (sleeptime > waittime - backend_fudge) 3672 if (sleeptime > waittime - backend_mintime)
2419 sleeptime = waittime - backend_fudge; 3673 sleeptime = waittime - backend_mintime;
2420 3674
2421 if (expect_true (sleeptime > 0.)) 3675 if (expect_true (sleeptime > 0.))
2422 { 3676 {
2423 ev_sleep (sleeptime); 3677 ev_sleep (sleeptime);
2424 waittime -= sleeptime; 3678 waittime -= sleeptime;
… …
2431#endif 3685#endif
2432 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3686 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2433 backend_poll (EV_A_ waittime); 3687 backend_poll (EV_A_ waittime);
2434 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3688 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2435 3689
3690 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3691
3692 ECB_MEMORY_FENCE_ACQUIRE;
3693 if (pipe_write_skipped)
3694 {
3695 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3696 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3697 }
3698
3699
2436 /* update ev_rt_now, do magic */ 3700 /* update ev_rt_now, do magic */
2437 time_update (EV_A_ waittime + sleeptime); 3701 time_update (EV_A_ waittime + sleeptime);
2438 } 3702 }
2439 3703
2440 /* queue pending timers and reschedule them */ 3704 /* queue pending timers and reschedule them */
… …
2466 loop_done = EVBREAK_CANCEL; 3730 loop_done = EVBREAK_CANCEL;
2467 3731
2468#if EV_FEATURE_API 3732#if EV_FEATURE_API
2469 --loop_depth; 3733 --loop_depth;
2470#endif 3734#endif
2471}
2472 3735
3736 return activecnt;
3737}
3738
2473void 3739void
2474ev_break (EV_P_ int how) 3740ev_break (EV_P_ int how) EV_THROW
2475{ 3741{
2476 loop_done = how; 3742 loop_done = how;
2477} 3743}
2478 3744
2479void 3745void
2480ev_ref (EV_P) 3746ev_ref (EV_P) EV_THROW
2481{ 3747{
2482 ++activecnt; 3748 ++activecnt;
2483} 3749}
2484 3750
2485void 3751void
2486ev_unref (EV_P) 3752ev_unref (EV_P) EV_THROW
2487{ 3753{
2488 --activecnt; 3754 --activecnt;
2489} 3755}
2490 3756
2491void 3757void
2492ev_now_update (EV_P) 3758ev_now_update (EV_P) EV_THROW
2493{ 3759{
2494 time_update (EV_A_ 1e100); 3760 time_update (EV_A_ 1e100);
2495} 3761}
2496 3762
2497void 3763void
2498ev_suspend (EV_P) 3764ev_suspend (EV_P) EV_THROW
2499{ 3765{
2500 ev_now_update (EV_A); 3766 ev_now_update (EV_A);
2501} 3767}
2502 3768
2503void 3769void
2504ev_resume (EV_P) 3770ev_resume (EV_P) EV_THROW
2505{ 3771{
2506 ev_tstamp mn_prev = mn_now; 3772 ev_tstamp mn_prev = mn_now;
2507 3773
2508 ev_now_update (EV_A); 3774 ev_now_update (EV_A);
2509 timers_reschedule (EV_A_ mn_now - mn_prev); 3775 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2548 w->pending = 0; 3814 w->pending = 0;
2549 } 3815 }
2550} 3816}
2551 3817
2552int 3818int
2553ev_clear_pending (EV_P_ void *w) 3819ev_clear_pending (EV_P_ void *w) EV_THROW
2554{ 3820{
2555 W w_ = (W)w; 3821 W w_ = (W)w;
2556 int pending = w_->pending; 3822 int pending = w_->pending;
2557 3823
2558 if (expect_true (pending)) 3824 if (expect_true (pending))
… …
2590 w->active = 0; 3856 w->active = 0;
2591} 3857}
2592 3858
2593/*****************************************************************************/ 3859/*****************************************************************************/
2594 3860
2595void noinline 3861noinline
3862void
2596ev_io_start (EV_P_ ev_io *w) 3863ev_io_start (EV_P_ ev_io *w) EV_THROW
2597{ 3864{
2598 int fd = w->fd; 3865 int fd = w->fd;
2599 3866
2600 if (expect_false (ev_is_active (w))) 3867 if (expect_false (ev_is_active (w)))
2601 return; 3868 return;
… …
2607 3874
2608 ev_start (EV_A_ (W)w, 1); 3875 ev_start (EV_A_ (W)w, 1);
2609 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3876 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2610 wlist_add (&anfds[fd].head, (WL)w); 3877 wlist_add (&anfds[fd].head, (WL)w);
2611 3878
3879 /* common bug, apparently */
3880 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3881
2612 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3882 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2613 w->events &= ~EV__IOFDSET; 3883 w->events &= ~EV__IOFDSET;
2614 3884
2615 EV_FREQUENT_CHECK; 3885 EV_FREQUENT_CHECK;
2616} 3886}
2617 3887
2618void noinline 3888noinline
3889void
2619ev_io_stop (EV_P_ ev_io *w) 3890ev_io_stop (EV_P_ ev_io *w) EV_THROW
2620{ 3891{
2621 clear_pending (EV_A_ (W)w); 3892 clear_pending (EV_A_ (W)w);
2622 if (expect_false (!ev_is_active (w))) 3893 if (expect_false (!ev_is_active (w)))
2623 return; 3894 return;
2624 3895
… …
2632 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3903 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
2633 3904
2634 EV_FREQUENT_CHECK; 3905 EV_FREQUENT_CHECK;
2635} 3906}
2636 3907
2637void noinline 3908noinline
3909void
2638ev_timer_start (EV_P_ ev_timer *w) 3910ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2639{ 3911{
2640 if (expect_false (ev_is_active (w))) 3912 if (expect_false (ev_is_active (w)))
2641 return; 3913 return;
2642 3914
2643 ev_at (w) += mn_now; 3915 ev_at (w) += mn_now;
… …
2656 EV_FREQUENT_CHECK; 3928 EV_FREQUENT_CHECK;
2657 3929
2658 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3930 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2659} 3931}
2660 3932
2661void noinline 3933noinline
3934void
2662ev_timer_stop (EV_P_ ev_timer *w) 3935ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2663{ 3936{
2664 clear_pending (EV_A_ (W)w); 3937 clear_pending (EV_A_ (W)w);
2665 if (expect_false (!ev_is_active (w))) 3938 if (expect_false (!ev_is_active (w)))
2666 return; 3939 return;
2667 3940
… …
2686 ev_stop (EV_A_ (W)w); 3959 ev_stop (EV_A_ (W)w);
2687 3960
2688 EV_FREQUENT_CHECK; 3961 EV_FREQUENT_CHECK;
2689} 3962}
2690 3963
2691void noinline 3964noinline
3965void
2692ev_timer_again (EV_P_ ev_timer *w) 3966ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2693{ 3967{
2694 EV_FREQUENT_CHECK; 3968 EV_FREQUENT_CHECK;
3969
3970 clear_pending (EV_A_ (W)w);
2695 3971
2696 if (ev_is_active (w)) 3972 if (ev_is_active (w))
2697 { 3973 {
2698 if (w->repeat) 3974 if (w->repeat)
2699 { 3975 {
… …
2712 3988
2713 EV_FREQUENT_CHECK; 3989 EV_FREQUENT_CHECK;
2714} 3990}
2715 3991
2716ev_tstamp 3992ev_tstamp
2717ev_timer_remaining (EV_P_ ev_timer *w) 3993ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2718{ 3994{
2719 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3995 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2720} 3996}
2721 3997
2722#if EV_PERIODIC_ENABLE 3998#if EV_PERIODIC_ENABLE
2723void noinline 3999noinline
4000void
2724ev_periodic_start (EV_P_ ev_periodic *w) 4001ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2725{ 4002{
2726 if (expect_false (ev_is_active (w))) 4003 if (expect_false (ev_is_active (w)))
2727 return; 4004 return;
2728 4005
2729 if (w->reschedule_cb) 4006 if (w->reschedule_cb)
2730 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4007 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
2731 else if (w->interval) 4008 else if (w->interval)
2732 { 4009 {
2733 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); 4010 assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.));
2734 /* this formula differs from the one in periodic_reify because we do not always round up */ 4011 periodic_recalc (EV_A_ w);
2735 ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval;
2736 } 4012 }
2737 else 4013 else
2738 ev_at (w) = w->offset; 4014 ev_at (w) = w->offset;
2739 4015
2740 EV_FREQUENT_CHECK; 4016 EV_FREQUENT_CHECK;
… …
2749 EV_FREQUENT_CHECK; 4025 EV_FREQUENT_CHECK;
2750 4026
2751 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4027 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2752} 4028}
2753 4029
2754void noinline 4030noinline
4031void
2755ev_periodic_stop (EV_P_ ev_periodic *w) 4032ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2756{ 4033{
2757 clear_pending (EV_A_ (W)w); 4034 clear_pending (EV_A_ (W)w);
2758 if (expect_false (!ev_is_active (w))) 4035 if (expect_false (!ev_is_active (w)))
2759 return; 4036 return;
2760 4037
… …
2777 ev_stop (EV_A_ (W)w); 4054 ev_stop (EV_A_ (W)w);
2778 4055
2779 EV_FREQUENT_CHECK; 4056 EV_FREQUENT_CHECK;
2780} 4057}
2781 4058
2782void noinline 4059noinline
4060void
2783ev_periodic_again (EV_P_ ev_periodic *w) 4061ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2784{ 4062{
2785 /* TODO: use adjustheap and recalculation */ 4063 /* TODO: use adjustheap and recalculation */
2786 ev_periodic_stop (EV_A_ w); 4064 ev_periodic_stop (EV_A_ w);
2787 ev_periodic_start (EV_A_ w); 4065 ev_periodic_start (EV_A_ w);
2788} 4066}
… …
2792# define SA_RESTART 0 4070# define SA_RESTART 0
2793#endif 4071#endif
2794 4072
2795#if EV_SIGNAL_ENABLE 4073#if EV_SIGNAL_ENABLE
2796 4074
2797void noinline 4075noinline
4076void
2798ev_signal_start (EV_P_ ev_signal *w) 4077ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2799{ 4078{
2800 if (expect_false (ev_is_active (w))) 4079 if (expect_false (ev_is_active (w)))
2801 return; 4080 return;
2802 4081
2803 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4082 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2805#if EV_MULTIPLICITY 4084#if EV_MULTIPLICITY
2806 assert (("libev: a signal must not be attached to two different loops", 4085 assert (("libev: a signal must not be attached to two different loops",
2807 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4086 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2808 4087
2809 signals [w->signum - 1].loop = EV_A; 4088 signals [w->signum - 1].loop = EV_A;
4089 ECB_MEMORY_FENCE_RELEASE;
2810#endif 4090#endif
2811 4091
2812 EV_FREQUENT_CHECK; 4092 EV_FREQUENT_CHECK;
2813 4093
2814#if EV_USE_SIGNALFD 4094#if EV_USE_SIGNALFD
… …
2861 sa.sa_handler = ev_sighandler; 4141 sa.sa_handler = ev_sighandler;
2862 sigfillset (&sa.sa_mask); 4142 sigfillset (&sa.sa_mask);
2863 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ 4143 sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */
2864 sigaction (w->signum, &sa, 0); 4144 sigaction (w->signum, &sa, 0);
2865 4145
4146 if (origflags & EVFLAG_NOSIGMASK)
4147 {
2866 sigemptyset (&sa.sa_mask); 4148 sigemptyset (&sa.sa_mask);
2867 sigaddset (&sa.sa_mask, w->signum); 4149 sigaddset (&sa.sa_mask, w->signum);
2868 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); 4150 sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0);
4151 }
2869#endif 4152#endif
2870 } 4153 }
2871 4154
2872 EV_FREQUENT_CHECK; 4155 EV_FREQUENT_CHECK;
2873} 4156}
2874 4157
2875void noinline 4158noinline
4159void
2876ev_signal_stop (EV_P_ ev_signal *w) 4160ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2877{ 4161{
2878 clear_pending (EV_A_ (W)w); 4162 clear_pending (EV_A_ (W)w);
2879 if (expect_false (!ev_is_active (w))) 4163 if (expect_false (!ev_is_active (w)))
2880 return; 4164 return;
2881 4165
… …
2912#endif 4196#endif
2913 4197
2914#if EV_CHILD_ENABLE 4198#if EV_CHILD_ENABLE
2915 4199
2916void 4200void
2917ev_child_start (EV_P_ ev_child *w) 4201ev_child_start (EV_P_ ev_child *w) EV_THROW
2918{ 4202{
2919#if EV_MULTIPLICITY 4203#if EV_MULTIPLICITY
2920 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4204 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
2921#endif 4205#endif
2922 if (expect_false (ev_is_active (w))) 4206 if (expect_false (ev_is_active (w)))
… …
2929 4213
2930 EV_FREQUENT_CHECK; 4214 EV_FREQUENT_CHECK;
2931} 4215}
2932 4216
2933void 4217void
2934ev_child_stop (EV_P_ ev_child *w) 4218ev_child_stop (EV_P_ ev_child *w) EV_THROW
2935{ 4219{
2936 clear_pending (EV_A_ (W)w); 4220 clear_pending (EV_A_ (W)w);
2937 if (expect_false (!ev_is_active (w))) 4221 if (expect_false (!ev_is_active (w)))
2938 return; 4222 return;
2939 4223
… …
2956 4240
2957#define DEF_STAT_INTERVAL 5.0074891 4241#define DEF_STAT_INTERVAL 5.0074891
2958#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4242#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
2959#define MIN_STAT_INTERVAL 0.1074891 4243#define MIN_STAT_INTERVAL 0.1074891
2960 4244
2961static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4245noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
2962 4246
2963#if EV_USE_INOTIFY 4247#if EV_USE_INOTIFY
2964 4248
2965/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4249/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
2966# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4250# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
2967 4251
2968static void noinline 4252noinline
4253static void
2969infy_add (EV_P_ ev_stat *w) 4254infy_add (EV_P_ ev_stat *w)
2970{ 4255{
2971 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 4256 w->wd = inotify_add_watch (fs_fd, w->path,
4257 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4258 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4259 | IN_DONT_FOLLOW | IN_MASK_ADD);
2972 4260
2973 if (w->wd >= 0) 4261 if (w->wd >= 0)
2974 { 4262 {
2975 struct statfs sfs; 4263 struct statfs sfs;
2976 4264
… …
2980 4268
2981 if (!fs_2625) 4269 if (!fs_2625)
2982 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4270 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
2983 else if (!statfs (w->path, &sfs) 4271 else if (!statfs (w->path, &sfs)
2984 && (sfs.f_type == 0x1373 /* devfs */ 4272 && (sfs.f_type == 0x1373 /* devfs */
4273 || sfs.f_type == 0x4006 /* fat */
4274 || sfs.f_type == 0x4d44 /* msdos */
2985 || sfs.f_type == 0xEF53 /* ext2/3 */ 4275 || sfs.f_type == 0xEF53 /* ext2/3 */
4276 || sfs.f_type == 0x72b6 /* jffs2 */
4277 || sfs.f_type == 0x858458f6 /* ramfs */
4278 || sfs.f_type == 0x5346544e /* ntfs */
2986 || sfs.f_type == 0x3153464a /* jfs */ 4279 || sfs.f_type == 0x3153464a /* jfs */
4280 || sfs.f_type == 0x9123683e /* btrfs */
2987 || sfs.f_type == 0x52654973 /* reiser3 */ 4281 || sfs.f_type == 0x52654973 /* reiser3 */
2988 || sfs.f_type == 0x01021994 /* tempfs */ 4282 || sfs.f_type == 0x01021994 /* tmpfs */
2989 || sfs.f_type == 0x58465342 /* xfs */)) 4283 || sfs.f_type == 0x58465342 /* xfs */))
2990 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4284 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
2991 else 4285 else
2992 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4286 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
2993 } 4287 }
… …
3014 if (!pend || pend == path) 4308 if (!pend || pend == path)
3015 break; 4309 break;
3016 4310
3017 *pend = 0; 4311 *pend = 0;
3018 w->wd = inotify_add_watch (fs_fd, path, mask); 4312 w->wd = inotify_add_watch (fs_fd, path, mask);
3019 } 4313 }
3020 while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); 4314 while (w->wd < 0 && (errno == ENOENT || errno == EACCES));
3021 } 4315 }
3022 } 4316 }
3023 4317
3024 if (w->wd >= 0) 4318 if (w->wd >= 0)
… …
3028 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4322 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3029 ev_timer_again (EV_A_ &w->timer); 4323 ev_timer_again (EV_A_ &w->timer);
3030 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4324 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3031} 4325}
3032 4326
3033static void noinline 4327noinline
4328static void
3034infy_del (EV_P_ ev_stat *w) 4329infy_del (EV_P_ ev_stat *w)
3035{ 4330{
3036 int slot; 4331 int slot;
3037 int wd = w->wd; 4332 int wd = w->wd;
3038 4333
… …
3045 4340
3046 /* remove this watcher, if others are watching it, they will rearm */ 4341 /* remove this watcher, if others are watching it, they will rearm */
3047 inotify_rm_watch (fs_fd, wd); 4342 inotify_rm_watch (fs_fd, wd);
3048} 4343}
3049 4344
3050static void noinline 4345noinline
4346static void
3051infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4347infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3052{ 4348{
3053 if (slot < 0) 4349 if (slot < 0)
3054 /* overflow, need to check for all hash slots */ 4350 /* overflow, need to check for all hash slots */
3055 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4351 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3091 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4387 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3092 ofs += sizeof (struct inotify_event) + ev->len; 4388 ofs += sizeof (struct inotify_event) + ev->len;
3093 } 4389 }
3094} 4390}
3095 4391
3096inline_size void 4392inline_size ecb_cold
4393void
3097ev_check_2625 (EV_P) 4394ev_check_2625 (EV_P)
3098{ 4395{
3099 /* kernels < 2.6.25 are borked 4396 /* kernels < 2.6.25 are borked
3100 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4397 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3101 */ 4398 */
… …
3106} 4403}
3107 4404
3108inline_size int 4405inline_size int
3109infy_newfd (void) 4406infy_newfd (void)
3110{ 4407{
3111#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4408#if defined IN_CLOEXEC && defined IN_NONBLOCK
3112 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4409 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3113 if (fd >= 0) 4410 if (fd >= 0)
3114 return fd; 4411 return fd;
3115#endif 4412#endif
3116 return inotify_init (); 4413 return inotify_init ();
… …
3191#else 4488#else
3192# define EV_LSTAT(p,b) lstat (p, b) 4489# define EV_LSTAT(p,b) lstat (p, b)
3193#endif 4490#endif
3194 4491
3195void 4492void
3196ev_stat_stat (EV_P_ ev_stat *w) 4493ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3197{ 4494{
3198 if (lstat (w->path, &w->attr) < 0) 4495 if (lstat (w->path, &w->attr) < 0)
3199 w->attr.st_nlink = 0; 4496 w->attr.st_nlink = 0;
3200 else if (!w->attr.st_nlink) 4497 else if (!w->attr.st_nlink)
3201 w->attr.st_nlink = 1; 4498 w->attr.st_nlink = 1;
3202} 4499}
3203 4500
3204static void noinline 4501noinline
4502static void
3205stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4503stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3206{ 4504{
3207 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4505 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3208 4506
3209 ev_statdata prev = w->attr; 4507 ev_statdata prev = w->attr;
… …
3240 ev_feed_event (EV_A_ w, EV_STAT); 4538 ev_feed_event (EV_A_ w, EV_STAT);
3241 } 4539 }
3242} 4540}
3243 4541
3244void 4542void
3245ev_stat_start (EV_P_ ev_stat *w) 4543ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3246{ 4544{
3247 if (expect_false (ev_is_active (w))) 4545 if (expect_false (ev_is_active (w)))
3248 return; 4546 return;
3249 4547
3250 ev_stat_stat (EV_A_ w); 4548 ev_stat_stat (EV_A_ w);
… …
3271 4569
3272 EV_FREQUENT_CHECK; 4570 EV_FREQUENT_CHECK;
3273} 4571}
3274 4572
3275void 4573void
3276ev_stat_stop (EV_P_ ev_stat *w) 4574ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3277{ 4575{
3278 clear_pending (EV_A_ (W)w); 4576 clear_pending (EV_A_ (W)w);
3279 if (expect_false (!ev_is_active (w))) 4577 if (expect_false (!ev_is_active (w)))
3280 return; 4578 return;
3281 4579
… …
3297} 4595}
3298#endif 4596#endif
3299 4597
3300#if EV_IDLE_ENABLE 4598#if EV_IDLE_ENABLE
3301void 4599void
3302ev_idle_start (EV_P_ ev_idle *w) 4600ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3303{ 4601{
3304 if (expect_false (ev_is_active (w))) 4602 if (expect_false (ev_is_active (w)))
3305 return; 4603 return;
3306 4604
3307 pri_adjust (EV_A_ (W)w); 4605 pri_adjust (EV_A_ (W)w);
… …
3320 4618
3321 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
3322} 4620}
3323 4621
3324void 4622void
3325ev_idle_stop (EV_P_ ev_idle *w) 4623ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3326{ 4624{
3327 clear_pending (EV_A_ (W)w); 4625 clear_pending (EV_A_ (W)w);
3328 if (expect_false (!ev_is_active (w))) 4626 if (expect_false (!ev_is_active (w)))
3329 return; 4627 return;
3330 4628
… …
3344} 4642}
3345#endif 4643#endif
3346 4644
3347#if EV_PREPARE_ENABLE 4645#if EV_PREPARE_ENABLE
3348void 4646void
3349ev_prepare_start (EV_P_ ev_prepare *w) 4647ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3350{ 4648{
3351 if (expect_false (ev_is_active (w))) 4649 if (expect_false (ev_is_active (w)))
3352 return; 4650 return;
3353 4651
3354 EV_FREQUENT_CHECK; 4652 EV_FREQUENT_CHECK;
… …
3359 4657
3360 EV_FREQUENT_CHECK; 4658 EV_FREQUENT_CHECK;
3361} 4659}
3362 4660
3363void 4661void
3364ev_prepare_stop (EV_P_ ev_prepare *w) 4662ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3365{ 4663{
3366 clear_pending (EV_A_ (W)w); 4664 clear_pending (EV_A_ (W)w);
3367 if (expect_false (!ev_is_active (w))) 4665 if (expect_false (!ev_is_active (w)))
3368 return; 4666 return;
3369 4667
… …
3382} 4680}
3383#endif 4681#endif
3384 4682
3385#if EV_CHECK_ENABLE 4683#if EV_CHECK_ENABLE
3386void 4684void
3387ev_check_start (EV_P_ ev_check *w) 4685ev_check_start (EV_P_ ev_check *w) EV_THROW
3388{ 4686{
3389 if (expect_false (ev_is_active (w))) 4687 if (expect_false (ev_is_active (w)))
3390 return; 4688 return;
3391 4689
3392 EV_FREQUENT_CHECK; 4690 EV_FREQUENT_CHECK;
… …
3397 4695
3398 EV_FREQUENT_CHECK; 4696 EV_FREQUENT_CHECK;
3399} 4697}
3400 4698
3401void 4699void
3402ev_check_stop (EV_P_ ev_check *w) 4700ev_check_stop (EV_P_ ev_check *w) EV_THROW
3403{ 4701{
3404 clear_pending (EV_A_ (W)w); 4702 clear_pending (EV_A_ (W)w);
3405 if (expect_false (!ev_is_active (w))) 4703 if (expect_false (!ev_is_active (w)))
3406 return; 4704 return;
3407 4705
… …
3419 EV_FREQUENT_CHECK; 4717 EV_FREQUENT_CHECK;
3420} 4718}
3421#endif 4719#endif
3422 4720
3423#if EV_EMBED_ENABLE 4721#if EV_EMBED_ENABLE
3424void noinline 4722noinline
4723void
3425ev_embed_sweep (EV_P_ ev_embed *w) 4724ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3426{ 4725{
3427 ev_run (w->other, EVRUN_NOWAIT); 4726 ev_run (w->other, EVRUN_NOWAIT);
3428} 4727}
3429 4728
3430static void 4729static void
… …
3478 ev_idle_stop (EV_A_ idle); 4777 ev_idle_stop (EV_A_ idle);
3479} 4778}
3480#endif 4779#endif
3481 4780
3482void 4781void
3483ev_embed_start (EV_P_ ev_embed *w) 4782ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3484{ 4783{
3485 if (expect_false (ev_is_active (w))) 4784 if (expect_false (ev_is_active (w)))
3486 return; 4785 return;
3487 4786
3488 { 4787 {
… …
3509 4808
3510 EV_FREQUENT_CHECK; 4809 EV_FREQUENT_CHECK;
3511} 4810}
3512 4811
3513void 4812void
3514ev_embed_stop (EV_P_ ev_embed *w) 4813ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3515{ 4814{
3516 clear_pending (EV_A_ (W)w); 4815 clear_pending (EV_A_ (W)w);
3517 if (expect_false (!ev_is_active (w))) 4816 if (expect_false (!ev_is_active (w)))
3518 return; 4817 return;
3519 4818
… …
3529} 4828}
3530#endif 4829#endif
3531 4830
3532#if EV_FORK_ENABLE 4831#if EV_FORK_ENABLE
3533void 4832void
3534ev_fork_start (EV_P_ ev_fork *w) 4833ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3535{ 4834{
3536 if (expect_false (ev_is_active (w))) 4835 if (expect_false (ev_is_active (w)))
3537 return; 4836 return;
3538 4837
3539 EV_FREQUENT_CHECK; 4838 EV_FREQUENT_CHECK;
… …
3544 4843
3545 EV_FREQUENT_CHECK; 4844 EV_FREQUENT_CHECK;
3546} 4845}
3547 4846
3548void 4847void
3549ev_fork_stop (EV_P_ ev_fork *w) 4848ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3550{ 4849{
3551 clear_pending (EV_A_ (W)w); 4850 clear_pending (EV_A_ (W)w);
3552 if (expect_false (!ev_is_active (w))) 4851 if (expect_false (!ev_is_active (w)))
3553 return; 4852 return;
3554 4853
… …
3565 4864
3566 EV_FREQUENT_CHECK; 4865 EV_FREQUENT_CHECK;
3567} 4866}
3568#endif 4867#endif
3569 4868
4869#if EV_CLEANUP_ENABLE
4870void
4871ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4872{
4873 if (expect_false (ev_is_active (w)))
4874 return;
4875
4876 EV_FREQUENT_CHECK;
4877
4878 ev_start (EV_A_ (W)w, ++cleanupcnt);
4879 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2);
4880 cleanups [cleanupcnt - 1] = w;
4881
4882 /* cleanup watchers should never keep a refcount on the loop */
4883 ev_unref (EV_A);
4884 EV_FREQUENT_CHECK;
4885}
4886
4887void
4888ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4889{
4890 clear_pending (EV_A_ (W)w);
4891 if (expect_false (!ev_is_active (w)))
4892 return;
4893
4894 EV_FREQUENT_CHECK;
4895 ev_ref (EV_A);
4896
4897 {
4898 int active = ev_active (w);
4899
4900 cleanups [active - 1] = cleanups [--cleanupcnt];
4901 ev_active (cleanups [active - 1]) = active;
4902 }
4903
4904 ev_stop (EV_A_ (W)w);
4905
4906 EV_FREQUENT_CHECK;
4907}
4908#endif
4909
3570#if EV_ASYNC_ENABLE 4910#if EV_ASYNC_ENABLE
3571void 4911void
3572ev_async_start (EV_P_ ev_async *w) 4912ev_async_start (EV_P_ ev_async *w) EV_THROW
3573{ 4913{
3574 if (expect_false (ev_is_active (w))) 4914 if (expect_false (ev_is_active (w)))
3575 return; 4915 return;
3576 4916
3577 w->sent = 0; 4917 w->sent = 0;
… …
3586 4926
3587 EV_FREQUENT_CHECK; 4927 EV_FREQUENT_CHECK;
3588} 4928}
3589 4929
3590void 4930void
3591ev_async_stop (EV_P_ ev_async *w) 4931ev_async_stop (EV_P_ ev_async *w) EV_THROW
3592{ 4932{
3593 clear_pending (EV_A_ (W)w); 4933 clear_pending (EV_A_ (W)w);
3594 if (expect_false (!ev_is_active (w))) 4934 if (expect_false (!ev_is_active (w)))
3595 return; 4935 return;
3596 4936
… …
3607 4947
3608 EV_FREQUENT_CHECK; 4948 EV_FREQUENT_CHECK;
3609} 4949}
3610 4950
3611void 4951void
3612ev_async_send (EV_P_ ev_async *w) 4952ev_async_send (EV_P_ ev_async *w) EV_THROW
3613{ 4953{
3614 w->sent = 1; 4954 w->sent = 1;
3615 evpipe_write (EV_A_ &async_pending); 4955 evpipe_write (EV_A_ &async_pending);
3616} 4956}
3617#endif 4957#endif
… …
3654 4994
3655 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4995 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3656} 4996}
3657 4997
3658void 4998void
3659ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4999ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3660{ 5000{
3661 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5001 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3662 5002
3663 if (expect_false (!once)) 5003 if (expect_false (!once))
3664 { 5004 {
… …
3685} 5025}
3686 5026
3687/*****************************************************************************/ 5027/*****************************************************************************/
3688 5028
3689#if EV_WALK_ENABLE 5029#if EV_WALK_ENABLE
5030ecb_cold
3690void 5031void
3691ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 5032ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3692{ 5033{
3693 int i, j; 5034 int i, j;
3694 ev_watcher_list *wl, *wn; 5035 ev_watcher_list *wl, *wn;
3695 5036
3696 if (types & (EV_IO | EV_EMBED)) 5037 if (types & (EV_IO | EV_EMBED))
… …
3739 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 5080 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3740#endif 5081#endif
3741 5082
3742#if EV_IDLE_ENABLE 5083#if EV_IDLE_ENABLE
3743 if (types & EV_IDLE) 5084 if (types & EV_IDLE)
3744 for (j = NUMPRI; i--; ) 5085 for (j = NUMPRI; j--; )
3745 for (i = idlecnt [j]; i--; ) 5086 for (i = idlecnt [j]; i--; )
3746 cb (EV_A_ EV_IDLE, idles [j][i]); 5087 cb (EV_A_ EV_IDLE, idles [j][i]);
3747#endif 5088#endif
3748 5089
3749#if EV_FORK_ENABLE 5090#if EV_FORK_ENABLE
… …
3802 5143
3803#if EV_MULTIPLICITY 5144#if EV_MULTIPLICITY
3804 #include "ev_wrap.h" 5145 #include "ev_wrap.h"
3805#endif 5146#endif
3806 5147
3807EV_CPP(})
3808

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