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Comparing libev/ev.c (file contents):
Revision 1.430 by root, Wed May 9 16:50:23 2012 UTC vs.
Revision 1.489 by root, Sat Dec 29 14:23:20 2018 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2018 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 *
… …
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 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
162# define EV_USE_EVENTFD 0 162# define EV_USE_EVENTFD 0
163# endif 163# endif
164 164
165#endif 165#endif
166 166
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
167#include <stdlib.h> 177#include <stdlib.h>
168#include <string.h> 178#include <string.h>
169#include <fcntl.h> 179#include <fcntl.h>
170#include <stddef.h> 180#include <stddef.h>
171 181
… …
201# include <sys/wait.h> 211# include <sys/wait.h>
202# include <unistd.h> 212# include <unistd.h>
203#else 213#else
204# include <io.h> 214# include <io.h>
205# define WIN32_LEAN_AND_MEAN 215# define WIN32_LEAN_AND_MEAN
216# include <winsock2.h>
206# include <windows.h> 217# include <windows.h>
207# include <winsock2.h>
208# ifndef EV_SELECT_IS_WINSOCKET 218# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 219# define EV_SELECT_IS_WINSOCKET 1
210# endif 220# endif
211# undef EV_AVOID_STDIO 221# undef EV_AVOID_STDIO
212#endif 222#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 223
222/* 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 */
223 225
224/* try to deduce the maximum number of signals on this platform */ 226/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 227#if defined EV_NSIG
… …
241#elif defined SIGARRAYSIZE 243#elif defined SIGARRAYSIZE
242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 244# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
243#elif defined _sys_nsig 245#elif defined _sys_nsig
244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 246# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
245#else 247#else
246# error "unable to find value for NSIG, please report" 248# define EV_NSIG (8 * sizeof (sigset_t) + 1)
247/* to make it compile regardless, just remove the above line, */
248/* but consider reporting it, too! :) */
249# define EV_NSIG 65
250#endif 249#endif
251 250
252#ifndef EV_USE_FLOOR 251#ifndef EV_USE_FLOOR
253# define EV_USE_FLOOR 0 252# define EV_USE_FLOOR 0
254#endif 253#endif
255 254
256#ifndef EV_USE_CLOCK_SYSCALL 255#ifndef EV_USE_CLOCK_SYSCALL
257# if __linux && __GLIBC__ >= 2 256# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
258# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
259# else 258# else
260# define EV_USE_CLOCK_SYSCALL 0 259# define EV_USE_CLOCK_SYSCALL 0
260# endif
261#endif
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
261# endif 269# endif
262#endif 270#endif
263 271
264#ifndef EV_USE_MONOTONIC 272#ifndef EV_USE_MONOTONIC
265# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 273# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
… …
355# define EV_USE_4HEAP EV_FEATURE_DATA 363# define EV_USE_4HEAP EV_FEATURE_DATA
356#endif 364#endif
357 365
358#ifndef EV_HEAP_CACHE_AT 366#ifndef EV_HEAP_CACHE_AT
359# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 367# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
368#endif
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
360#endif 384#endif
361 385
362/* 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, */
363/* which makes programs even slower. might work on other unices, too. */ 387/* which makes programs even slower. might work on other unices, too. */
364#if EV_USE_CLOCK_SYSCALL 388#if EV_USE_CLOCK_SYSCALL
… …
372# define EV_USE_CLOCK_SYSCALL 0 396# define EV_USE_CLOCK_SYSCALL 0
373# endif 397# endif
374#endif 398#endif
375 399
376/* 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 */
377
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383 401
384#ifndef CLOCK_MONOTONIC 402#ifndef CLOCK_MONOTONIC
385# undef EV_USE_MONOTONIC 403# undef EV_USE_MONOTONIC
386# define EV_USE_MONOTONIC 0 404# define EV_USE_MONOTONIC 0
387#endif 405#endif
… …
475/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
476/* ECB.H BEGIN */ 494/* ECB.H BEGIN */
477/* 495/*
478 * libecb - http://software.schmorp.de/pkg/libecb 496 * libecb - http://software.schmorp.de/pkg/libecb
479 * 497 *
480 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de>
481 * Copyright (©) 2011 Emanuele Giaquinta 499 * Copyright (©) 2011 Emanuele Giaquinta
482 * All rights reserved. 500 * All rights reserved.
483 * 501 *
484 * Redistribution and use in source and binary forms, with or without modifica- 502 * Redistribution and use in source and binary forms, with or without modifica-
485 * tion, are permitted provided that the following conditions are met: 503 * tion, are permitted provided that the following conditions are met:
… …
499 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 517 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
500 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 518 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
501 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 519 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
502 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 520 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
503 * OF THE POSSIBILITY OF SUCH DAMAGE. 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.
504 */ 533 */
505 534
506#ifndef ECB_H 535#ifndef ECB_H
507#define ECB_H 536#define ECB_H
537
538/* 16 bits major, 16 bits minor */
539#define ECB_VERSION 0x00010005
508 540
509#ifdef _WIN32 541#ifdef _WIN32
510 typedef signed char int8_t; 542 typedef signed char int8_t;
511 typedef unsigned char uint8_t; 543 typedef unsigned char uint8_t;
512 typedef signed short int16_t; 544 typedef signed short int16_t;
… …
518 typedef unsigned long long uint64_t; 550 typedef unsigned long long uint64_t;
519 #else /* _MSC_VER || __BORLANDC__ */ 551 #else /* _MSC_VER || __BORLANDC__ */
520 typedef signed __int64 int64_t; 552 typedef signed __int64 int64_t;
521 typedef unsigned __int64 uint64_t; 553 typedef unsigned __int64 uint64_t;
522 #endif 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
523#else 564#else
524 #include <inttypes.h> 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
525#endif 583#endif
526 584
527/* many compilers define _GNUC_ to some versions but then only implement 585/* many compilers define _GNUC_ to some versions but then only implement
528 * what their idiot authors think are the "more important" extensions, 586 * what their idiot authors think are the "more important" extensions,
529 * causing enormous grief in return for some better fake benchmark numbers. 587 * causing enormous grief in return for some better fake benchmark numbers.
530 * or so. 588 * or so.
531 * we try to detect these and simply assume they are not gcc - if they have 589 * we try to detect these and simply assume they are not gcc - if they have
532 * an issue with that they should have done it right in the first place. 590 * an issue with that they should have done it right in the first place.
533 */ 591 */
534#ifndef ECB_GCC_VERSION
535 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ 592#if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
536 #define ECB_GCC_VERSION(major,minor) 0 593 #define ECB_GCC_VERSION(major,minor) 0
537 #else 594#else
538 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 595 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
539 #endif 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#define ECB_CPP14 (__cplusplus >= 201402L)
615#define ECB_CPP17 (__cplusplus >= 201703L)
616
617#if ECB_CPP
618 #define ECB_C 0
619 #define ECB_STDC_VERSION 0
620#else
621 #define ECB_C 1
622 #define ECB_STDC_VERSION __STDC_VERSION__
623#endif
624
625#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
626#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
627#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
628
629#if ECB_CPP
630 #define ECB_EXTERN_C extern "C"
631 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
632 #define ECB_EXTERN_C_END }
633#else
634 #define ECB_EXTERN_C extern
635 #define ECB_EXTERN_C_BEG
636 #define ECB_EXTERN_C_END
540#endif 637#endif
541 638
542/*****************************************************************************/ 639/*****************************************************************************/
543 640
544/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 641/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
545/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 642/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
546 643
547#if ECB_NO_THREADS 644#if ECB_NO_THREADS
548# define ECB_NO_SMP 1 645 #define ECB_NO_SMP 1
549#endif 646#endif
550 647
551#if ECB_NO_THREADS || ECB_NO_SMP 648#if ECB_NO_SMP
552 #define ECB_MEMORY_FENCE do { } while (0) 649 #define ECB_MEMORY_FENCE do { } while (0)
650#endif
651
652/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
653#if __xlC__ && ECB_CPP
654 #include <builtins.h>
655#endif
656
657#if 1400 <= _MSC_VER
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
553#endif 659#endif
554 660
555#ifndef ECB_MEMORY_FENCE 661#ifndef ECB_MEMORY_FENCE
556 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
557 #if __i386 || __i386__ 663 #if __i386 || __i386__
558 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
559 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
560 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
561 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 667 #elif ECB_GCC_AMD64
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
563 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 669 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
564 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 670 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
565 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 671 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
566 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
673 #elif defined __ARM_ARCH_2__ \
674 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
675 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
676 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
677 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
678 || defined __ARM_ARCH_5TEJ__
679 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
567 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 680 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
568 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 681 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
682 || defined __ARM_ARCH_6T2__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 683 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
570 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 684 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
571 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 685 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 686 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
573 #elif __sparc || __sparc__ 687 #elif __aarch64__
688 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
689 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
574 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 690 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
575 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 691 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
576 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 692 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
577 #elif defined __s390__ || defined __s390x__ 693 #elif defined __s390__ || defined __s390x__
578 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 694 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
579 #elif defined __mips__ 695 #elif defined __mips__
696 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
697 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
580 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 698 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
581 #elif defined __alpha__ 699 #elif defined __alpha__
582 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") 700 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
701 #elif defined __hppa__
702 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
703 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
704 #elif defined __ia64__
705 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
706 #elif defined __m68k__
707 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
708 #elif defined __m88k__
709 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
710 #elif defined __sh__
711 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
583 #endif 712 #endif
584 #endif 713 #endif
585#endif 714#endif
586 715
587#ifndef ECB_MEMORY_FENCE 716#ifndef ECB_MEMORY_FENCE
717 #if ECB_GCC_VERSION(4,7)
718 /* see comment below (stdatomic.h) about the C11 memory model. */
719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
722
723 #elif ECB_CLANG_EXTENSION(c_atomic)
724 /* see comment below (stdatomic.h) about the C11 memory model. */
725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
728
588 #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
589 #define ECB_MEMORY_FENCE __sync_synchronize () 730 #define ECB_MEMORY_FENCE __sync_synchronize ()
590 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 731 #elif _MSC_VER >= 1500 /* VC++ 2008 */
591 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 732 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
733 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
734 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
735 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
736 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
592 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 737 #elif _MSC_VER >= 1400 /* VC++ 2005 */
593 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 738 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
594 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 739 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
595 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 740 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
596 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 741 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
… …
606 #define ECB_MEMORY_FENCE __sync () 751 #define ECB_MEMORY_FENCE __sync ()
607 #endif 752 #endif
608#endif 753#endif
609 754
610#ifndef ECB_MEMORY_FENCE 755#ifndef ECB_MEMORY_FENCE
756 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
757 /* we assume that these memory fences work on all variables/all memory accesses, */
758 /* not just C11 atomics and atomic accesses */
759 #include <stdatomic.h>
760 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
761 /* any fence other than seq_cst, which isn't very efficient for us. */
762 /* Why that is, we don't know - either the C11 memory model is quite useless */
763 /* for most usages, or gcc and clang have a bug */
764 /* I *currently* lean towards the latter, and inefficiently implement */
765 /* all three of ecb's fences as a seq_cst fence */
766 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
767 /* for all __atomic_thread_fence's except seq_cst */
768 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
769 #endif
770#endif
771
772#ifndef ECB_MEMORY_FENCE
611 #if !ECB_AVOID_PTHREADS 773 #if !ECB_AVOID_PTHREADS
612 /* 774 /*
613 * if you get undefined symbol references to pthread_mutex_lock, 775 * if you get undefined symbol references to pthread_mutex_lock,
614 * or failure to find pthread.h, then you should implement 776 * or failure to find pthread.h, then you should implement
615 * the ECB_MEMORY_FENCE operations for your cpu/compiler 777 * the ECB_MEMORY_FENCE operations for your cpu/compiler
… …
633 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 795 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
634#endif 796#endif
635 797
636/*****************************************************************************/ 798/*****************************************************************************/
637 799
638#define ECB_C99 (__STDC_VERSION__ >= 199901L) 800#if ECB_CPP
639
640#if __cplusplus
641 #define ecb_inline static inline 801 #define ecb_inline static inline
642#elif ECB_GCC_VERSION(2,5) 802#elif ECB_GCC_VERSION(2,5)
643 #define ecb_inline static __inline__ 803 #define ecb_inline static __inline__
644#elif ECB_C99 804#elif ECB_C99
645 #define ecb_inline static inline 805 #define ecb_inline static inline
… …
659 819
660#define ECB_CONCAT_(a, b) a ## b 820#define ECB_CONCAT_(a, b) a ## b
661#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 821#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
662#define ECB_STRINGIFY_(a) # a 822#define ECB_STRINGIFY_(a) # a
663#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 823#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
824#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
664 825
665#define ecb_function_ ecb_inline 826#define ecb_function_ ecb_inline
666 827
667#if ECB_GCC_VERSION(3,1) 828#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
668 #define ecb_attribute(attrlist) __attribute__(attrlist) 829 #define ecb_attribute(attrlist) __attribute__ (attrlist)
830#else
831 #define ecb_attribute(attrlist)
832#endif
833
834#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p)
669 #define ecb_is_constant(expr) __builtin_constant_p (expr) 835 #define ecb_is_constant(expr) __builtin_constant_p (expr)
836#else
837 /* possible C11 impl for integral types
838 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
839 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
840
841 #define ecb_is_constant(expr) 0
842#endif
843
844#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect)
670 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 845 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
846#else
847 #define ecb_expect(expr,value) (expr)
848#endif
849
850#if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch)
671 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 851 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
672#else 852#else
673 #define ecb_attribute(attrlist)
674 #define ecb_is_constant(expr) 0
675 #define ecb_expect(expr,value) (expr)
676 #define ecb_prefetch(addr,rw,locality) 853 #define ecb_prefetch(addr,rw,locality)
677#endif 854#endif
678 855
679/* no emulation for ecb_decltype */ 856/* no emulation for ecb_decltype */
680#if ECB_GCC_VERSION(4,5) 857#if ECB_CPP11
858 // older implementations might have problems with decltype(x)::type, work around it
859 template<class T> struct ecb_decltype_t { typedef T type; };
681 #define ecb_decltype(x) __decltype(x) 860 #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type
682#elif ECB_GCC_VERSION(3,0) 861#elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8)
683 #define ecb_decltype(x) __typeof(x) 862 #define ecb_decltype(x) __typeof__ (x)
684#endif 863#endif
685 864
865#if _MSC_VER >= 1300
866 #define ecb_deprecated __declspec (deprecated)
867#else
868 #define ecb_deprecated ecb_attribute ((__deprecated__))
869#endif
870
871#if _MSC_VER >= 1500
872 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
873#elif ECB_GCC_VERSION(4,5)
874 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
875#else
876 #define ecb_deprecated_message(msg) ecb_deprecated
877#endif
878
879#if _MSC_VER >= 1400
880 #define ecb_noinline __declspec (noinline)
881#else
686#define ecb_noinline ecb_attribute ((__noinline__)) 882 #define ecb_noinline ecb_attribute ((__noinline__))
687#define ecb_noreturn ecb_attribute ((__noreturn__)) 883#endif
884
688#define ecb_unused ecb_attribute ((__unused__)) 885#define ecb_unused ecb_attribute ((__unused__))
689#define ecb_const ecb_attribute ((__const__)) 886#define ecb_const ecb_attribute ((__const__))
690#define ecb_pure ecb_attribute ((__pure__)) 887#define ecb_pure ecb_attribute ((__pure__))
888
889#if ECB_C11 || __IBMC_NORETURN
890 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
891 #define ecb_noreturn _Noreturn
892#elif ECB_CPP11
893 #define ecb_noreturn [[noreturn]]
894#elif _MSC_VER >= 1200
895 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
896 #define ecb_noreturn __declspec (noreturn)
897#else
898 #define ecb_noreturn ecb_attribute ((__noreturn__))
899#endif
691 900
692#if ECB_GCC_VERSION(4,3) 901#if ECB_GCC_VERSION(4,3)
693 #define ecb_artificial ecb_attribute ((__artificial__)) 902 #define ecb_artificial ecb_attribute ((__artificial__))
694 #define ecb_hot ecb_attribute ((__hot__)) 903 #define ecb_hot ecb_attribute ((__hot__))
695 #define ecb_cold ecb_attribute ((__cold__)) 904 #define ecb_cold ecb_attribute ((__cold__))
… …
707/* for compatibility to the rest of the world */ 916/* for compatibility to the rest of the world */
708#define ecb_likely(expr) ecb_expect_true (expr) 917#define ecb_likely(expr) ecb_expect_true (expr)
709#define ecb_unlikely(expr) ecb_expect_false (expr) 918#define ecb_unlikely(expr) ecb_expect_false (expr)
710 919
711/* count trailing zero bits and count # of one bits */ 920/* count trailing zero bits and count # of one bits */
712#if ECB_GCC_VERSION(3,4) 921#if ECB_GCC_VERSION(3,4) \
922 || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \
923 && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \
924 && ECB_CLANG_BUILTIN(__builtin_popcount))
713 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ 925 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
714 #define ecb_ld32(x) (__builtin_clz (x) ^ 31) 926 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
715 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) 927 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
716 #define ecb_ctz32(x) __builtin_ctz (x) 928 #define ecb_ctz32(x) __builtin_ctz (x)
717 #define ecb_ctz64(x) __builtin_ctzll (x) 929 #define ecb_ctz64(x) __builtin_ctzll (x)
718 #define ecb_popcount32(x) __builtin_popcount (x) 930 #define ecb_popcount32(x) __builtin_popcount (x)
719 /* no popcountll */ 931 /* no popcountll */
720#else 932#else
721 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; 933 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
722 ecb_function_ int 934 ecb_function_ ecb_const int
723 ecb_ctz32 (uint32_t x) 935 ecb_ctz32 (uint32_t x)
724 { 936 {
937#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
938 unsigned long r;
939 _BitScanForward (&r, x);
940 return (int)r;
941#else
725 int r = 0; 942 int r = 0;
726 943
727 x &= ~x + 1; /* this isolates the lowest bit */ 944 x &= ~x + 1; /* this isolates the lowest bit */
728 945
729#if ECB_branchless_on_i386 946#if ECB_branchless_on_i386
… …
739 if (x & 0xff00ff00) r += 8; 956 if (x & 0xff00ff00) r += 8;
740 if (x & 0xffff0000) r += 16; 957 if (x & 0xffff0000) r += 16;
741#endif 958#endif
742 959
743 return r; 960 return r;
961#endif
744 } 962 }
745 963
746 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; 964 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
747 ecb_function_ int 965 ecb_function_ ecb_const int
748 ecb_ctz64 (uint64_t x) 966 ecb_ctz64 (uint64_t x)
749 { 967 {
968#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
969 unsigned long r;
970 _BitScanForward64 (&r, x);
971 return (int)r;
972#else
750 int shift = x & 0xffffffffU ? 0 : 32; 973 int shift = x & 0xffffffff ? 0 : 32;
751 return ecb_ctz32 (x >> shift) + shift; 974 return ecb_ctz32 (x >> shift) + shift;
975#endif
752 } 976 }
753 977
754 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; 978 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
755 ecb_function_ int 979 ecb_function_ ecb_const int
756 ecb_popcount32 (uint32_t x) 980 ecb_popcount32 (uint32_t x)
757 { 981 {
758 x -= (x >> 1) & 0x55555555; 982 x -= (x >> 1) & 0x55555555;
759 x = ((x >> 2) & 0x33333333) + (x & 0x33333333); 983 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
760 x = ((x >> 4) + x) & 0x0f0f0f0f; 984 x = ((x >> 4) + x) & 0x0f0f0f0f;
761 x *= 0x01010101; 985 x *= 0x01010101;
762 986
763 return x >> 24; 987 return x >> 24;
764 } 988 }
765 989
766 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; 990 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
767 ecb_function_ int ecb_ld32 (uint32_t x) 991 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
768 { 992 {
993#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
994 unsigned long r;
995 _BitScanReverse (&r, x);
996 return (int)r;
997#else
769 int r = 0; 998 int r = 0;
770 999
771 if (x >> 16) { x >>= 16; r += 16; } 1000 if (x >> 16) { x >>= 16; r += 16; }
772 if (x >> 8) { x >>= 8; r += 8; } 1001 if (x >> 8) { x >>= 8; r += 8; }
773 if (x >> 4) { x >>= 4; r += 4; } 1002 if (x >> 4) { x >>= 4; r += 4; }
774 if (x >> 2) { x >>= 2; r += 2; } 1003 if (x >> 2) { x >>= 2; r += 2; }
775 if (x >> 1) { r += 1; } 1004 if (x >> 1) { r += 1; }
776 1005
777 return r; 1006 return r;
1007#endif
778 } 1008 }
779 1009
780 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; 1010 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
781 ecb_function_ int ecb_ld64 (uint64_t x) 1011 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
782 { 1012 {
1013#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1014 unsigned long r;
1015 _BitScanReverse64 (&r, x);
1016 return (int)r;
1017#else
783 int r = 0; 1018 int r = 0;
784 1019
785 if (x >> 32) { x >>= 32; r += 32; } 1020 if (x >> 32) { x >>= 32; r += 32; }
786 1021
787 return r + ecb_ld32 (x); 1022 return r + ecb_ld32 (x);
1023#endif
788 } 1024 }
789#endif 1025#endif
790 1026
1027ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
1028ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
1029ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x);
1030ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
1031
791ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 1032ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x);
792ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 1033ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x)
793{ 1034{
794 return ( (x * 0x0802U & 0x22110U) 1035 return ( (x * 0x0802U & 0x22110U)
795 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 1036 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
796} 1037}
797 1038
798ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; 1039ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x);
799ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) 1040ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x)
800{ 1041{
801 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); 1042 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
802 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); 1043 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
803 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); 1044 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
804 x = ( x >> 8 ) | ( x << 8); 1045 x = ( x >> 8 ) | ( x << 8);
805 1046
806 return x; 1047 return x;
807} 1048}
808 1049
809ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; 1050ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x);
810ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) 1051ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x)
811{ 1052{
812 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); 1053 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
813 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); 1054 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
814 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); 1055 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
815 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); 1056 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
… …
818 return x; 1059 return x;
819} 1060}
820 1061
821/* popcount64 is only available on 64 bit cpus as gcc builtin */ 1062/* popcount64 is only available on 64 bit cpus as gcc builtin */
822/* so for this version we are lazy */ 1063/* so for this version we are lazy */
823ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 1064ecb_function_ ecb_const int ecb_popcount64 (uint64_t x);
824ecb_function_ int 1065ecb_function_ ecb_const int
825ecb_popcount64 (uint64_t x) 1066ecb_popcount64 (uint64_t x)
826{ 1067{
827 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); 1068 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
828} 1069}
829 1070
830ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; 1071ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count);
831ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; 1072ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count);
832ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; 1073ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count);
833ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; 1074ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count);
834ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; 1075ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count);
835ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; 1076ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count);
836ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; 1077ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count);
837ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; 1078ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count);
838 1079
839ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } 1080ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
840ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } 1081ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
841ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } 1082ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
842ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } 1083ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
843ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1084ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
844ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1085ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
845ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1086ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
846ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
847 1088
848#if ECB_GCC_VERSION(4,3) 1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else
849 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1094 #endif
850 #define ecb_bswap32(x) __builtin_bswap32 (x) 1095 #define ecb_bswap32(x) __builtin_bswap32 (x)
851 #define ecb_bswap64(x) __builtin_bswap64 (x) 1096 #define ecb_bswap64(x) __builtin_bswap64 (x)
1097#elif _MSC_VER
1098 #include <stdlib.h>
1099 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1100 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1101 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
852#else 1102#else
853 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; 1103 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
854 ecb_function_ uint16_t 1104 ecb_function_ ecb_const uint16_t
855 ecb_bswap16 (uint16_t x) 1105 ecb_bswap16 (uint16_t x)
856 { 1106 {
857 return ecb_rotl16 (x, 8); 1107 return ecb_rotl16 (x, 8);
858 } 1108 }
859 1109
860 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; 1110 ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x);
861 ecb_function_ uint32_t 1111 ecb_function_ ecb_const uint32_t
862 ecb_bswap32 (uint32_t x) 1112 ecb_bswap32 (uint32_t x)
863 { 1113 {
864 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); 1114 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
865 } 1115 }
866 1116
867 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; 1117 ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x);
868 ecb_function_ uint64_t 1118 ecb_function_ ecb_const uint64_t
869 ecb_bswap64 (uint64_t x) 1119 ecb_bswap64 (uint64_t x)
870 { 1120 {
871 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); 1121 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
872 } 1122 }
873#endif 1123#endif
874 1124
875#if ECB_GCC_VERSION(4,5) 1125#if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable)
876 #define ecb_unreachable() __builtin_unreachable () 1126 #define ecb_unreachable() __builtin_unreachable ()
877#else 1127#else
878 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1128 /* this seems to work fine, but gcc always emits a warning for it :/ */
879 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1129 ecb_inline ecb_noreturn void ecb_unreachable (void);
880 ecb_inline void ecb_unreachable (void) { } 1130 ecb_inline ecb_noreturn void ecb_unreachable (void) { }
881#endif 1131#endif
882 1132
883/* try to tell the compiler that some condition is definitely true */ 1133/* try to tell the compiler that some condition is definitely true */
884#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1134#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
885 1135
886ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1136ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
887ecb_inline unsigned char 1137ecb_inline ecb_const uint32_t
888ecb_byteorder_helper (void) 1138ecb_byteorder_helper (void)
889{ 1139{
890 const uint32_t u = 0x11223344; 1140 /* the union code still generates code under pressure in gcc, */
891 return *(unsigned char *)&u; 1141 /* but less than using pointers, and always seems to */
1142 /* successfully return a constant. */
1143 /* the reason why we have this horrible preprocessor mess */
1144 /* is to avoid it in all cases, at least on common architectures */
1145 /* or when using a recent enough gcc version (>= 4.6) */
1146#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1147 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1148 #define ECB_LITTLE_ENDIAN 1
1149 return 0x44332211;
1150#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1151 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1152 #define ECB_BIG_ENDIAN 1
1153 return 0x11223344;
1154#else
1155 union
1156 {
1157 uint8_t c[4];
1158 uint32_t u;
1159 } u = { 0x11, 0x22, 0x33, 0x44 };
1160 return u.u;
1161#endif
892} 1162}
893 1163
894ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1164ecb_inline ecb_const ecb_bool ecb_big_endian (void);
895ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
896ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1166ecb_inline ecb_const ecb_bool ecb_little_endian (void);
897ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
898 1168
899#if ECB_GCC_VERSION(3,0) || ECB_C99 1169#if ECB_GCC_VERSION(3,0) || ECB_C99
900 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
901#else 1171#else
902 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
903#endif 1173#endif
904 1174
905#if __cplusplus 1175#if ECB_CPP
906 template<typename T> 1176 template<typename T>
907 static inline T ecb_div_rd (T val, T div) 1177 static inline T ecb_div_rd (T val, T div)
908 { 1178 {
909 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; 1179 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
910 } 1180 }
… …
927 } 1197 }
928#else 1198#else
929 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
930#endif 1200#endif
931 1201
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x)
1205{
1206 unsigned int s = (x & 0x8000) << (31 - 15);
1207 int e = (x >> 10) & 0x001f;
1208 unsigned int m = x & 0x03ff;
1209
1210 if (ecb_expect_false (e == 31))
1211 /* infinity or NaN */
1212 e = 255 - (127 - 15);
1213 else if (ecb_expect_false (!e))
1214 {
1215 if (ecb_expect_true (!m))
1216 /* zero, handled by code below by forcing e to 0 */
1217 e = 0 - (127 - 15);
1218 else
1219 {
1220 /* subnormal, renormalise */
1221 unsigned int s = 10 - ecb_ld32 (m);
1222
1223 m = (m << s) & 0x3ff; /* mask implicit bit */
1224 e -= s - 1;
1225 }
1226 }
1227
1228 /* e and m now are normalised, or zero, (or inf or nan) */
1229 e += 127 - 15;
1230
1231 return s | (e << 23) | (m << (23 - 10));
1232}
1233
1234ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1235ecb_function_ ecb_const uint16_t
1236ecb_binary32_to_binary16 (uint32_t x)
1237{
1238 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1239 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1240 unsigned int m = x & 0x007fffff;
1241
1242 x &= 0x7fffffff;
1243
1244 /* if it's within range of binary16 normals, use fast path */
1245 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1246 {
1247 /* mantissa round-to-even */
1248 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1249
1250 /* handle overflow */
1251 if (ecb_expect_false (m >= 0x00800000))
1252 {
1253 m >>= 1;
1254 e += 1;
1255 }
1256
1257 return s | (e << 10) | (m >> (23 - 10));
1258 }
1259
1260 /* handle large numbers and infinity */
1261 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1262 return s | 0x7c00;
1263
1264 /* handle zero, subnormals and small numbers */
1265 if (ecb_expect_true (x < 0x38800000))
1266 {
1267 /* zero */
1268 if (ecb_expect_true (!x))
1269 return s;
1270
1271 /* handle subnormals */
1272
1273 /* too small, will be zero */
1274 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1275 return s;
1276
1277 m |= 0x00800000; /* make implicit bit explicit */
1278
1279 /* very tricky - we need to round to the nearest e (+10) bit value */
1280 {
1281 unsigned int bits = 14 - e;
1282 unsigned int half = (1 << (bits - 1)) - 1;
1283 unsigned int even = (m >> bits) & 1;
1284
1285 /* if this overflows, we will end up with a normalised number */
1286 m = (m + half + even) >> bits;
1287 }
1288
1289 return s | m;
1290 }
1291
1292 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1293 m >>= 13;
1294
1295 return s | 0x7c00 | m | !m;
1296}
1297
1298/*******************************************************************************/
1299/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1300
1301/* basically, everything uses "ieee pure-endian" floating point numbers */
1302/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1303#if 0 \
1304 || __i386 || __i386__ \
1305 || ECB_GCC_AMD64 \
1306 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1307 || defined __s390__ || defined __s390x__ \
1308 || defined __mips__ \
1309 || defined __alpha__ \
1310 || defined __hppa__ \
1311 || defined __ia64__ \
1312 || defined __m68k__ \
1313 || defined __m88k__ \
1314 || defined __sh__ \
1315 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1316 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1317 || defined __aarch64__
1318 #define ECB_STDFP 1
1319 #include <string.h> /* for memcpy */
1320#else
1321 #define ECB_STDFP 0
1322#endif
1323
1324#ifndef ECB_NO_LIBM
1325
1326 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1327
1328 /* only the oldest of old doesn't have this one. solaris. */
1329 #ifdef INFINITY
1330 #define ECB_INFINITY INFINITY
1331 #else
1332 #define ECB_INFINITY HUGE_VAL
1333 #endif
1334
1335 #ifdef NAN
1336 #define ECB_NAN NAN
1337 #else
1338 #define ECB_NAN ECB_INFINITY
1339 #endif
1340
1341 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1342 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1343 #define ecb_frexpf(x,e) frexpf ((x), (e))
1344 #else
1345 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1346 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1347 #endif
1348
1349 /* convert a float to ieee single/binary32 */
1350 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1351 ecb_function_ ecb_const uint32_t
1352 ecb_float_to_binary32 (float x)
1353 {
1354 uint32_t r;
1355
1356 #if ECB_STDFP
1357 memcpy (&r, &x, 4);
1358 #else
1359 /* slow emulation, works for anything but -0 */
1360 uint32_t m;
1361 int e;
1362
1363 if (x == 0e0f ) return 0x00000000U;
1364 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1365 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1366 if (x != x ) return 0x7fbfffffU;
1367
1368 m = ecb_frexpf (x, &e) * 0x1000000U;
1369
1370 r = m & 0x80000000U;
1371
1372 if (r)
1373 m = -m;
1374
1375 if (e <= -126)
1376 {
1377 m &= 0xffffffU;
1378 m >>= (-125 - e);
1379 e = -126;
1380 }
1381
1382 r |= (e + 126) << 23;
1383 r |= m & 0x7fffffU;
1384 #endif
1385
1386 return r;
1387 }
1388
1389 /* converts an ieee single/binary32 to a float */
1390 ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x);
1391 ecb_function_ ecb_const float
1392 ecb_binary32_to_float (uint32_t x)
1393 {
1394 float r;
1395
1396 #if ECB_STDFP
1397 memcpy (&r, &x, 4);
1398 #else
1399 /* emulation, only works for normals and subnormals and +0 */
1400 int neg = x >> 31;
1401 int e = (x >> 23) & 0xffU;
1402
1403 x &= 0x7fffffU;
1404
1405 if (e)
1406 x |= 0x800000U;
1407 else
1408 e = 1;
1409
1410 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1411 r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126);
1412
1413 r = neg ? -r : r;
1414 #endif
1415
1416 return r;
1417 }
1418
1419 /* convert a double to ieee double/binary64 */
1420 ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x);
1421 ecb_function_ ecb_const uint64_t
1422 ecb_double_to_binary64 (double x)
1423 {
1424 uint64_t r;
1425
1426 #if ECB_STDFP
1427 memcpy (&r, &x, 8);
1428 #else
1429 /* slow emulation, works for anything but -0 */
1430 uint64_t m;
1431 int e;
1432
1433 if (x == 0e0 ) return 0x0000000000000000U;
1434 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1435 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1436 if (x != x ) return 0X7ff7ffffffffffffU;
1437
1438 m = frexp (x, &e) * 0x20000000000000U;
1439
1440 r = m & 0x8000000000000000;;
1441
1442 if (r)
1443 m = -m;
1444
1445 if (e <= -1022)
1446 {
1447 m &= 0x1fffffffffffffU;
1448 m >>= (-1021 - e);
1449 e = -1022;
1450 }
1451
1452 r |= ((uint64_t)(e + 1022)) << 52;
1453 r |= m & 0xfffffffffffffU;
1454 #endif
1455
1456 return r;
1457 }
1458
1459 /* converts an ieee double/binary64 to a double */
1460 ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x);
1461 ecb_function_ ecb_const double
1462 ecb_binary64_to_double (uint64_t x)
1463 {
1464 double r;
1465
1466 #if ECB_STDFP
1467 memcpy (&r, &x, 8);
1468 #else
1469 /* emulation, only works for normals and subnormals and +0 */
1470 int neg = x >> 63;
1471 int e = (x >> 52) & 0x7ffU;
1472
1473 x &= 0xfffffffffffffU;
1474
1475 if (e)
1476 x |= 0x10000000000000U;
1477 else
1478 e = 1;
1479
1480 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1481 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1482
1483 r = neg ? -r : r;
1484 #endif
1485
1486 return r;
1487 }
1488
1489 /* convert a float to ieee half/binary16 */
1490 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1491 ecb_function_ ecb_const uint16_t
1492 ecb_float_to_binary16 (float x)
1493 {
1494 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1495 }
1496
1497 /* convert an ieee half/binary16 to float */
1498 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1499 ecb_function_ ecb_const float
1500 ecb_binary16_to_float (uint16_t x)
1501 {
1502 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1503 }
1504
1505#endif
1506
932#endif 1507#endif
933 1508
934/* ECB.H END */ 1509/* ECB.H END */
935 1510
936#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1511#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
957#define inline_size ecb_inline 1532#define inline_size ecb_inline
958 1533
959#if EV_FEATURE_CODE 1534#if EV_FEATURE_CODE
960# define inline_speed ecb_inline 1535# define inline_speed ecb_inline
961#else 1536#else
962# define inline_speed static noinline 1537# define inline_speed noinline static
963#endif 1538#endif
964 1539
965#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
966 1541
967#if EV_MINPRI == EV_MAXPRI 1542#if EV_MINPRI == EV_MAXPRI
… …
1014#else 1589#else
1015 1590
1016#include <float.h> 1591#include <float.h>
1017 1592
1018/* a floor() replacement function, should be independent of ev_tstamp type */ 1593/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline
1019static ev_tstamp noinline 1595static ev_tstamp
1020ev_floor (ev_tstamp v) 1596ev_floor (ev_tstamp v)
1021{ 1597{
1022 /* the choice of shift factor is not terribly important */ 1598 /* the choice of shift factor is not terribly important */
1023#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1024 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
… …
1056 1632
1057#ifdef __linux 1633#ifdef __linux
1058# include <sys/utsname.h> 1634# include <sys/utsname.h>
1059#endif 1635#endif
1060 1636
1061static unsigned int noinline ecb_cold 1637noinline ecb_cold
1638static unsigned int
1062ev_linux_version (void) 1639ev_linux_version (void)
1063{ 1640{
1064#ifdef __linux 1641#ifdef __linux
1065 unsigned int v = 0; 1642 unsigned int v = 0;
1066 struct utsname buf; 1643 struct utsname buf;
… …
1095} 1672}
1096 1673
1097/*****************************************************************************/ 1674/*****************************************************************************/
1098 1675
1099#if EV_AVOID_STDIO 1676#if EV_AVOID_STDIO
1100static void noinline ecb_cold 1677noinline ecb_cold
1678static void
1101ev_printerr (const char *msg) 1679ev_printerr (const char *msg)
1102{ 1680{
1103 write (STDERR_FILENO, msg, strlen (msg)); 1681 write (STDERR_FILENO, msg, strlen (msg));
1104} 1682}
1105#endif 1683#endif
1106 1684
1107static void (*syserr_cb)(const char *msg) EV_THROW; 1685static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1108 1686
1109void ecb_cold 1687ecb_cold
1688void
1110ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW 1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1111{ 1690{
1112 syserr_cb = cb; 1691 syserr_cb = cb;
1113} 1692}
1114 1693
1115static void noinline ecb_cold 1694noinline ecb_cold
1695static void
1116ev_syserr (const char *msg) 1696ev_syserr (const char *msg)
1117{ 1697{
1118 if (!msg) 1698 if (!msg)
1119 msg = "(libev) system error"; 1699 msg = "(libev) system error";
1120 1700
… …
1133 abort (); 1713 abort ();
1134 } 1714 }
1135} 1715}
1136 1716
1137static void * 1717static void *
1138ev_realloc_emul (void *ptr, long size) 1718ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1139{ 1719{
1140#if __GLIBC__
1141 return realloc (ptr, size);
1142#else
1143 /* some systems, notably openbsd and darwin, fail to properly 1720 /* some systems, notably openbsd and darwin, fail to properly
1144 * implement realloc (x, 0) (as required by both ansi c-89 and 1721 * implement realloc (x, 0) (as required by both ansi c-89 and
1145 * the single unix specification, so work around them here. 1722 * the single unix specification, so work around them here.
1723 * recently, also (at least) fedora and debian started breaking it,
1724 * despite documenting it otherwise.
1146 */ 1725 */
1147 1726
1148 if (size) 1727 if (size)
1149 return realloc (ptr, size); 1728 return realloc (ptr, size);
1150 1729
1151 free (ptr); 1730 free (ptr);
1152 return 0; 1731 return 0;
1153#endif
1154} 1732}
1155 1733
1156static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1734static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1157 1735
1158void ecb_cold 1736ecb_cold
1737void
1159ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW 1738ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1160{ 1739{
1161 alloc = cb; 1740 alloc = cb;
1162} 1741}
1163 1742
1164inline_speed void * 1743inline_speed void *
… …
1281 1860
1282/*****************************************************************************/ 1861/*****************************************************************************/
1283 1862
1284#ifndef EV_HAVE_EV_TIME 1863#ifndef EV_HAVE_EV_TIME
1285ev_tstamp 1864ev_tstamp
1286ev_time (void) EV_THROW 1865ev_time (void) EV_NOEXCEPT
1287{ 1866{
1288#if EV_USE_REALTIME 1867#if EV_USE_REALTIME
1289 if (expect_true (have_realtime)) 1868 if (expect_true (have_realtime))
1290 { 1869 {
1291 struct timespec ts; 1870 struct timespec ts;
… …
1315 return ev_time (); 1894 return ev_time ();
1316} 1895}
1317 1896
1318#if EV_MULTIPLICITY 1897#if EV_MULTIPLICITY
1319ev_tstamp 1898ev_tstamp
1320ev_now (EV_P) EV_THROW 1899ev_now (EV_P) EV_NOEXCEPT
1321{ 1900{
1322 return ev_rt_now; 1901 return ev_rt_now;
1323} 1902}
1324#endif 1903#endif
1325 1904
1326void 1905void
1327ev_sleep (ev_tstamp delay) EV_THROW 1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1328{ 1907{
1329 if (delay > 0.) 1908 if (delay > 0.)
1330 { 1909 {
1331#if EV_USE_NANOSLEEP 1910#if EV_USE_NANOSLEEP
1332 struct timespec ts; 1911 struct timespec ts;
1333 1912
1334 EV_TS_SET (ts, delay); 1913 EV_TS_SET (ts, delay);
1335 nanosleep (&ts, 0); 1914 nanosleep (&ts, 0);
1336#elif defined _WIN32 1915#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */
1337 Sleep ((unsigned long)(delay * 1e3)); 1918 Sleep ((unsigned long)(delay * 1e3));
1338#else 1919#else
1339 struct timeval tv; 1920 struct timeval tv;
1340 1921
1341 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1372 } 1953 }
1373 1954
1374 return ncur; 1955 return ncur;
1375} 1956}
1376 1957
1377static void * noinline ecb_cold 1958noinline ecb_cold
1959static void *
1378array_realloc (int elem, void *base, int *cur, int cnt) 1960array_realloc (int elem, void *base, int *cur, int cnt)
1379{ 1961{
1380 *cur = array_nextsize (elem, *cur, cnt); 1962 *cur = array_nextsize (elem, *cur, cnt);
1381 return ev_realloc (base, elem * *cur); 1963 return ev_realloc (base, elem * *cur);
1382} 1964}
… …
1385 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1967 memset ((void *)(base), 0, sizeof (*(base)) * (count))
1386 1968
1387#define array_needsize(type,base,cur,cnt,init) \ 1969#define array_needsize(type,base,cur,cnt,init) \
1388 if (expect_false ((cnt) > (cur))) \ 1970 if (expect_false ((cnt) > (cur))) \
1389 { \ 1971 { \
1390 int ecb_unused ocur_ = (cur); \ 1972 ecb_unused int ocur_ = (cur); \
1391 (base) = (type *)array_realloc \ 1973 (base) = (type *)array_realloc \
1392 (sizeof (type), (base), &(cur), (cnt)); \ 1974 (sizeof (type), (base), &(cur), (cnt)); \
1393 init ((base) + (ocur_), (cur) - ocur_); \ 1975 init ((base) + (ocur_), (cur) - ocur_); \
1394 } 1976 }
1395 1977
… …
1407 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1408 1990
1409/*****************************************************************************/ 1991/*****************************************************************************/
1410 1992
1411/* dummy callback for pending events */ 1993/* dummy callback for pending events */
1412static void noinline 1994noinline
1995static void
1413pendingcb (EV_P_ ev_prepare *w, int revents) 1996pendingcb (EV_P_ ev_prepare *w, int revents)
1414{ 1997{
1415} 1998}
1416 1999
1417void noinline 2000noinline
2001void
1418ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1419{ 2003{
1420 W w_ = (W)w; 2004 W w_ = (W)w;
1421 int pri = ABSPRI (w_); 2005 int pri = ABSPRI (w_);
1422 2006
1423 if (expect_false (w_->pending)) 2007 if (expect_false (w_->pending))
… …
1484 if (expect_true (!anfd->reify)) 2068 if (expect_true (!anfd->reify))
1485 fd_event_nocheck (EV_A_ fd, revents); 2069 fd_event_nocheck (EV_A_ fd, revents);
1486} 2070}
1487 2071
1488void 2072void
1489ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1490{ 2074{
1491 if (fd >= 0 && fd < anfdmax) 2075 if (fd >= 0 && fd < anfdmax)
1492 fd_event_nocheck (EV_A_ fd, revents); 2076 fd_event_nocheck (EV_A_ fd, revents);
1493} 2077}
1494 2078
… …
1552 2136
1553 fdchangecnt = 0; 2137 fdchangecnt = 0;
1554} 2138}
1555 2139
1556/* something about the given fd changed */ 2140/* something about the given fd changed */
1557inline_size void 2141inline_size
2142void
1558fd_change (EV_P_ int fd, int flags) 2143fd_change (EV_P_ int fd, int flags)
1559{ 2144{
1560 unsigned char reify = anfds [fd].reify; 2145 unsigned char reify = anfds [fd].reify;
1561 anfds [fd].reify |= flags; 2146 anfds [fd].reify |= flags;
1562 2147
… …
1567 fdchanges [fdchangecnt - 1] = fd; 2152 fdchanges [fdchangecnt - 1] = fd;
1568 } 2153 }
1569} 2154}
1570 2155
1571/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1572inline_speed void ecb_cold 2157inline_speed ecb_cold void
1573fd_kill (EV_P_ int fd) 2158fd_kill (EV_P_ int fd)
1574{ 2159{
1575 ev_io *w; 2160 ev_io *w;
1576 2161
1577 while ((w = (ev_io *)anfds [fd].head)) 2162 while ((w = (ev_io *)anfds [fd].head))
… …
1580 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2165 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1581 } 2166 }
1582} 2167}
1583 2168
1584/* check whether the given fd is actually valid, for error recovery */ 2169/* check whether the given fd is actually valid, for error recovery */
1585inline_size int ecb_cold 2170inline_size ecb_cold int
1586fd_valid (int fd) 2171fd_valid (int fd)
1587{ 2172{
1588#ifdef _WIN32 2173#ifdef _WIN32
1589 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2174 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1590#else 2175#else
1591 return fcntl (fd, F_GETFD) != -1; 2176 return fcntl (fd, F_GETFD) != -1;
1592#endif 2177#endif
1593} 2178}
1594 2179
1595/* called on EBADF to verify fds */ 2180/* called on EBADF to verify fds */
1596static void noinline ecb_cold 2181noinline ecb_cold
2182static void
1597fd_ebadf (EV_P) 2183fd_ebadf (EV_P)
1598{ 2184{
1599 int fd; 2185 int fd;
1600 2186
1601 for (fd = 0; fd < anfdmax; ++fd) 2187 for (fd = 0; fd < anfdmax; ++fd)
… …
1603 if (!fd_valid (fd) && errno == EBADF) 2189 if (!fd_valid (fd) && errno == EBADF)
1604 fd_kill (EV_A_ fd); 2190 fd_kill (EV_A_ fd);
1605} 2191}
1606 2192
1607/* called on ENOMEM in select/poll to kill some fds and retry */ 2193/* called on ENOMEM in select/poll to kill some fds and retry */
1608static void noinline ecb_cold 2194noinline ecb_cold
2195static void
1609fd_enomem (EV_P) 2196fd_enomem (EV_P)
1610{ 2197{
1611 int fd; 2198 int fd;
1612 2199
1613 for (fd = anfdmax; fd--; ) 2200 for (fd = anfdmax; fd--; )
… …
1617 break; 2204 break;
1618 } 2205 }
1619} 2206}
1620 2207
1621/* usually called after fork if backend needs to re-arm all fds from scratch */ 2208/* usually called after fork if backend needs to re-arm all fds from scratch */
1622static void noinline 2209noinline
2210static void
1623fd_rearm_all (EV_P) 2211fd_rearm_all (EV_P)
1624{ 2212{
1625 int fd; 2213 int fd;
1626 2214
1627 for (fd = 0; fd < anfdmax; ++fd) 2215 for (fd = 0; fd < anfdmax; ++fd)
… …
1808 2396
1809/*****************************************************************************/ 2397/*****************************************************************************/
1810 2398
1811#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1812 2400
1813static void noinline ecb_cold 2401noinline ecb_cold
2402static void
1814evpipe_init (EV_P) 2403evpipe_init (EV_P)
1815{ 2404{
1816 if (!ev_is_active (&pipe_w)) 2405 if (!ev_is_active (&pipe_w))
1817 { 2406 {
2407 int fds [2];
2408
1818# if EV_USE_EVENTFD 2409# if EV_USE_EVENTFD
2410 fds [0] = -1;
1819 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2411 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1820 if (evfd < 0 && errno == EINVAL) 2412 if (fds [1] < 0 && errno == EINVAL)
1821 evfd = eventfd (0, 0); 2413 fds [1] = eventfd (0, 0);
1822 2414
1823 if (evfd >= 0) 2415 if (fds [1] < 0)
1824 {
1825 evpipe [0] = -1;
1826 fd_intern (evfd); /* doing it twice doesn't hurt */
1827 ev_io_set (&pipe_w, evfd, EV_READ);
1828 }
1829 else
1830# endif 2416# endif
1831 { 2417 {
1832 while (pipe (evpipe)) 2418 while (pipe (fds))
1833 ev_syserr ("(libev) error creating signal/async pipe"); 2419 ev_syserr ("(libev) error creating signal/async pipe");
1834 2420
1835 fd_intern (evpipe [0]); 2421 fd_intern (fds [0]);
1836 fd_intern (evpipe [1]);
1837 ev_io_set (&pipe_w, evpipe [0], EV_READ);
1838 } 2422 }
1839 2423
2424 evpipe [0] = fds [0];
2425
2426 if (evpipe [1] < 0)
2427 evpipe [1] = fds [1]; /* first call, set write fd */
2428 else
2429 {
2430 /* on subsequent calls, do not change evpipe [1] */
2431 /* so that evpipe_write can always rely on its value. */
2432 /* this branch does not do anything sensible on windows, */
2433 /* so must not be executed on windows */
2434
2435 dup2 (fds [1], evpipe [1]);
2436 close (fds [1]);
2437 }
2438
2439 fd_intern (evpipe [1]);
2440
2441 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
1840 ev_io_start (EV_A_ &pipe_w); 2442 ev_io_start (EV_A_ &pipe_w);
1841 ev_unref (EV_A); /* watcher should not keep loop alive */ 2443 ev_unref (EV_A); /* watcher should not keep loop alive */
1842 } 2444 }
1843} 2445}
1844 2446
… …
1849 2451
1850 if (expect_true (*flag)) 2452 if (expect_true (*flag))
1851 return; 2453 return;
1852 2454
1853 *flag = 1; 2455 *flag = 1;
1854
1855 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2456 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1856 2457
1857 pipe_write_skipped = 1; 2458 pipe_write_skipped = 1;
1858 2459
1859 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ 2460 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1860 2461
1861 if (pipe_write_wanted) 2462 if (pipe_write_wanted)
1862 { 2463 {
1863 int old_errno; 2464 int old_errno;
1864 2465
1865 pipe_write_skipped = 0; /* just an optimisation, no fence needed */ 2466 pipe_write_skipped = 0;
2467 ECB_MEMORY_FENCE_RELEASE;
1866 2468
1867 old_errno = errno; /* save errno because write will clobber it */ 2469 old_errno = errno; /* save errno because write will clobber it */
1868 2470
1869#if EV_USE_EVENTFD 2471#if EV_USE_EVENTFD
1870 if (evfd >= 0) 2472 if (evpipe [0] < 0)
1871 { 2473 {
1872 uint64_t counter = 1; 2474 uint64_t counter = 1;
1873 write (evfd, &counter, sizeof (uint64_t)); 2475 write (evpipe [1], &counter, sizeof (uint64_t));
1874 } 2476 }
1875 else 2477 else
1876#endif 2478#endif
1877 { 2479 {
1878#ifdef _WIN32 2480#ifdef _WIN32
1879 WSABUF buf; 2481 WSABUF buf;
1880 DWORD sent; 2482 DWORD sent;
1881 buf.buf = &buf; 2483 buf.buf = (char *)&buf;
1882 buf.len = 1; 2484 buf.len = 1;
1883 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2485 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1884#else 2486#else
1885 write (evpipe [1], &(evpipe [1]), 1); 2487 write (evpipe [1], &(evpipe [1]), 1);
1886#endif 2488#endif
… …
1898 int i; 2500 int i;
1899 2501
1900 if (revents & EV_READ) 2502 if (revents & EV_READ)
1901 { 2503 {
1902#if EV_USE_EVENTFD 2504#if EV_USE_EVENTFD
1903 if (evfd >= 0) 2505 if (evpipe [0] < 0)
1904 { 2506 {
1905 uint64_t counter; 2507 uint64_t counter;
1906 read (evfd, &counter, sizeof (uint64_t)); 2508 read (evpipe [1], &counter, sizeof (uint64_t));
1907 } 2509 }
1908 else 2510 else
1909#endif 2511#endif
1910 { 2512 {
1911 char dummy[4]; 2513 char dummy[4];
1912#ifdef _WIN32 2514#ifdef _WIN32
1913 WSABUF buf; 2515 WSABUF buf;
1914 DWORD recvd; 2516 DWORD recvd;
2517 DWORD flags = 0;
1915 buf.buf = dummy; 2518 buf.buf = dummy;
1916 buf.len = sizeof (dummy); 2519 buf.len = sizeof (dummy);
1917 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); 2520 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
1918#else 2521#else
1919 read (evpipe [0], &dummy, sizeof (dummy)); 2522 read (evpipe [0], &dummy, sizeof (dummy));
1920#endif 2523#endif
1921 } 2524 }
1922 } 2525 }
… …
1928#if EV_SIGNAL_ENABLE 2531#if EV_SIGNAL_ENABLE
1929 if (sig_pending) 2532 if (sig_pending)
1930 { 2533 {
1931 sig_pending = 0; 2534 sig_pending = 0;
1932 2535
1933 ECB_MEMORY_FENCE_RELEASE; 2536 ECB_MEMORY_FENCE;
1934 2537
1935 for (i = EV_NSIG - 1; i--; ) 2538 for (i = EV_NSIG - 1; i--; )
1936 if (expect_false (signals [i].pending)) 2539 if (expect_false (signals [i].pending))
1937 ev_feed_signal_event (EV_A_ i + 1); 2540 ev_feed_signal_event (EV_A_ i + 1);
1938 } 2541 }
… …
1941#if EV_ASYNC_ENABLE 2544#if EV_ASYNC_ENABLE
1942 if (async_pending) 2545 if (async_pending)
1943 { 2546 {
1944 async_pending = 0; 2547 async_pending = 0;
1945 2548
1946 ECB_MEMORY_FENCE_RELEASE; 2549 ECB_MEMORY_FENCE;
1947 2550
1948 for (i = asynccnt; i--; ) 2551 for (i = asynccnt; i--; )
1949 if (asyncs [i]->sent) 2552 if (asyncs [i]->sent)
1950 { 2553 {
1951 asyncs [i]->sent = 0; 2554 asyncs [i]->sent = 0;
2555 ECB_MEMORY_FENCE_RELEASE;
1952 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2556 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1953 } 2557 }
1954 } 2558 }
1955#endif 2559#endif
1956} 2560}
1957 2561
1958/*****************************************************************************/ 2562/*****************************************************************************/
1959 2563
1960void 2564void
1961ev_feed_signal (int signum) EV_THROW 2565ev_feed_signal (int signum) EV_NOEXCEPT
1962{ 2566{
1963#if EV_MULTIPLICITY 2567#if EV_MULTIPLICITY
2568 EV_P;
2569 ECB_MEMORY_FENCE_ACQUIRE;
1964 EV_P = signals [signum - 1].loop; 2570 EV_A = signals [signum - 1].loop;
1965 2571
1966 if (!EV_A) 2572 if (!EV_A)
1967 return; 2573 return;
1968#endif 2574#endif
1969 2575
1970 if (!ev_active (&pipe_w))
1971 return;
1972
1973 signals [signum - 1].pending = 1; 2576 signals [signum - 1].pending = 1;
1974 evpipe_write (EV_A_ &sig_pending); 2577 evpipe_write (EV_A_ &sig_pending);
1975} 2578}
1976 2579
1977static void 2580static void
… …
1982#endif 2585#endif
1983 2586
1984 ev_feed_signal (signum); 2587 ev_feed_signal (signum);
1985} 2588}
1986 2589
1987void noinline 2590noinline
2591void
1988ev_feed_signal_event (EV_P_ int signum) EV_THROW 2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
1989{ 2593{
1990 WL w; 2594 WL w;
1991 2595
1992 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2596 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1993 return; 2597 return;
1994 2598
1995 --signum; 2599 --signum;
1996 2600
1997#if EV_MULTIPLICITY 2601#if EV_MULTIPLICITY
… …
2001 if (expect_false (signals [signum].loop != EV_A)) 2605 if (expect_false (signals [signum].loop != EV_A))
2002 return; 2606 return;
2003#endif 2607#endif
2004 2608
2005 signals [signum].pending = 0; 2609 signals [signum].pending = 0;
2610 ECB_MEMORY_FENCE_RELEASE;
2006 2611
2007 for (w = signals [signum].head; w; w = w->next) 2612 for (w = signals [signum].head; w; w = w->next)
2008 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2613 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
2009} 2614}
2010 2615
… …
2108#endif 2713#endif
2109#if EV_USE_SELECT 2714#if EV_USE_SELECT
2110# include "ev_select.c" 2715# include "ev_select.c"
2111#endif 2716#endif
2112 2717
2113int ecb_cold 2718ecb_cold int
2114ev_version_major (void) EV_THROW 2719ev_version_major (void) EV_NOEXCEPT
2115{ 2720{
2116 return EV_VERSION_MAJOR; 2721 return EV_VERSION_MAJOR;
2117} 2722}
2118 2723
2119int ecb_cold 2724ecb_cold int
2120ev_version_minor (void) EV_THROW 2725ev_version_minor (void) EV_NOEXCEPT
2121{ 2726{
2122 return EV_VERSION_MINOR; 2727 return EV_VERSION_MINOR;
2123} 2728}
2124 2729
2125/* return true if we are running with elevated privileges and should ignore env variables */ 2730/* return true if we are running with elevated privileges and should ignore env variables */
2126int inline_size ecb_cold 2731inline_size ecb_cold int
2127enable_secure (void) 2732enable_secure (void)
2128{ 2733{
2129#ifdef _WIN32 2734#ifdef _WIN32
2130 return 0; 2735 return 0;
2131#else 2736#else
2132 return getuid () != geteuid () 2737 return getuid () != geteuid ()
2133 || getgid () != getegid (); 2738 || getgid () != getegid ();
2134#endif 2739#endif
2135} 2740}
2136 2741
2137unsigned int ecb_cold 2742ecb_cold
2743unsigned int
2138ev_supported_backends (void) EV_THROW 2744ev_supported_backends (void) EV_NOEXCEPT
2139{ 2745{
2140 unsigned int flags = 0; 2746 unsigned int flags = 0;
2141 2747
2142 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2143 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2146 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
2147 2753
2148 return flags; 2754 return flags;
2149} 2755}
2150 2756
2151unsigned int ecb_cold 2757ecb_cold
2758unsigned int
2152ev_recommended_backends (void) EV_THROW 2759ev_recommended_backends (void) EV_NOEXCEPT
2153{ 2760{
2154 unsigned int flags = ev_supported_backends (); 2761 unsigned int flags = ev_supported_backends ();
2155 2762
2156#ifndef __NetBSD__ 2763#ifndef __NetBSD__
2157 /* kqueue is borked on everything but netbsd apparently */ 2764 /* kqueue is borked on everything but netbsd apparently */
… …
2168#endif 2775#endif
2169 2776
2170 return flags; 2777 return flags;
2171} 2778}
2172 2779
2173unsigned int ecb_cold 2780ecb_cold
2781unsigned int
2174ev_embeddable_backends (void) EV_THROW 2782ev_embeddable_backends (void) EV_NOEXCEPT
2175{ 2783{
2176 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2177 2785
2178 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2179 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2181 2789
2182 return flags; 2790 return flags;
2183} 2791}
2184 2792
2185unsigned int 2793unsigned int
2186ev_backend (EV_P) EV_THROW 2794ev_backend (EV_P) EV_NOEXCEPT
2187{ 2795{
2188 return backend; 2796 return backend;
2189} 2797}
2190 2798
2191#if EV_FEATURE_API 2799#if EV_FEATURE_API
2192unsigned int 2800unsigned int
2193ev_iteration (EV_P) EV_THROW 2801ev_iteration (EV_P) EV_NOEXCEPT
2194{ 2802{
2195 return loop_count; 2803 return loop_count;
2196} 2804}
2197 2805
2198unsigned int 2806unsigned int
2199ev_depth (EV_P) EV_THROW 2807ev_depth (EV_P) EV_NOEXCEPT
2200{ 2808{
2201 return loop_depth; 2809 return loop_depth;
2202} 2810}
2203 2811
2204void 2812void
2205ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2813ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2206{ 2814{
2207 io_blocktime = interval; 2815 io_blocktime = interval;
2208} 2816}
2209 2817
2210void 2818void
2211ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 2819ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2212{ 2820{
2213 timeout_blocktime = interval; 2821 timeout_blocktime = interval;
2214} 2822}
2215 2823
2216void 2824void
2217ev_set_userdata (EV_P_ void *data) EV_THROW 2825ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2218{ 2826{
2219 userdata = data; 2827 userdata = data;
2220} 2828}
2221 2829
2222void * 2830void *
2223ev_userdata (EV_P) EV_THROW 2831ev_userdata (EV_P) EV_NOEXCEPT
2224{ 2832{
2225 return userdata; 2833 return userdata;
2226} 2834}
2227 2835
2228void 2836void
2229ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW 2837ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2230{ 2838{
2231 invoke_cb = invoke_pending_cb; 2839 invoke_cb = invoke_pending_cb;
2232} 2840}
2233 2841
2234void 2842void
2235ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 2843ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2236{ 2844{
2237 release_cb = release; 2845 release_cb = release;
2238 acquire_cb = acquire; 2846 acquire_cb = acquire;
2239} 2847}
2240#endif 2848#endif
2241 2849
2242/* initialise a loop structure, must be zero-initialised */ 2850/* initialise a loop structure, must be zero-initialised */
2243static void noinline ecb_cold 2851noinline ecb_cold
2852static void
2244loop_init (EV_P_ unsigned int flags) EV_THROW 2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2245{ 2854{
2246 if (!backend) 2855 if (!backend)
2247 { 2856 {
2248 origflags = flags; 2857 origflags = flags;
2249 2858
… …
2294#if EV_ASYNC_ENABLE 2903#if EV_ASYNC_ENABLE
2295 async_pending = 0; 2904 async_pending = 0;
2296#endif 2905#endif
2297 pipe_write_skipped = 0; 2906 pipe_write_skipped = 0;
2298 pipe_write_wanted = 0; 2907 pipe_write_wanted = 0;
2908 evpipe [0] = -1;
2909 evpipe [1] = -1;
2299#if EV_USE_INOTIFY 2910#if EV_USE_INOTIFY
2300 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2911 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2301#endif 2912#endif
2302#if EV_USE_SIGNALFD 2913#if EV_USE_SIGNALFD
2303 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2914 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2333#endif 2944#endif
2334 } 2945 }
2335} 2946}
2336 2947
2337/* free up a loop structure */ 2948/* free up a loop structure */
2338void ecb_cold 2949ecb_cold
2950void
2339ev_loop_destroy (EV_P) 2951ev_loop_destroy (EV_P)
2340{ 2952{
2341 int i; 2953 int i;
2342 2954
2343#if EV_MULTIPLICITY 2955#if EV_MULTIPLICITY
… …
2354 EV_INVOKE_PENDING; 2966 EV_INVOKE_PENDING;
2355 } 2967 }
2356#endif 2968#endif
2357 2969
2358#if EV_CHILD_ENABLE 2970#if EV_CHILD_ENABLE
2359 if (ev_is_active (&childev)) 2971 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2360 { 2972 {
2361 ev_ref (EV_A); /* child watcher */ 2973 ev_ref (EV_A); /* child watcher */
2362 ev_signal_stop (EV_A_ &childev); 2974 ev_signal_stop (EV_A_ &childev);
2363 } 2975 }
2364#endif 2976#endif
… …
2366 if (ev_is_active (&pipe_w)) 2978 if (ev_is_active (&pipe_w))
2367 { 2979 {
2368 /*ev_ref (EV_A);*/ 2980 /*ev_ref (EV_A);*/
2369 /*ev_io_stop (EV_A_ &pipe_w);*/ 2981 /*ev_io_stop (EV_A_ &pipe_w);*/
2370 2982
2371#if EV_USE_EVENTFD
2372 if (evfd >= 0)
2373 close (evfd);
2374#endif
2375
2376 if (evpipe [0] >= 0)
2377 {
2378 EV_WIN32_CLOSE_FD (evpipe [0]); 2983 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2379 EV_WIN32_CLOSE_FD (evpipe [1]); 2984 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2380 }
2381 } 2985 }
2382 2986
2383#if EV_USE_SIGNALFD 2987#if EV_USE_SIGNALFD
2384 if (ev_is_active (&sigfd_w)) 2988 if (ev_is_active (&sigfd_w))
2385 close (sigfd); 2989 close (sigfd);
… …
2471#endif 3075#endif
2472#if EV_USE_INOTIFY 3076#if EV_USE_INOTIFY
2473 infy_fork (EV_A); 3077 infy_fork (EV_A);
2474#endif 3078#endif
2475 3079
3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2476 if (ev_is_active (&pipe_w)) 3081 if (ev_is_active (&pipe_w) && postfork != 2)
2477 { 3082 {
2478 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2479 3084
2480 ev_ref (EV_A); 3085 ev_ref (EV_A);
2481 ev_io_stop (EV_A_ &pipe_w); 3086 ev_io_stop (EV_A_ &pipe_w);
2482 3087
2483#if EV_USE_EVENTFD
2484 if (evfd >= 0)
2485 close (evfd);
2486#endif
2487
2488 if (evpipe [0] >= 0) 3088 if (evpipe [0] >= 0)
2489 {
2490 EV_WIN32_CLOSE_FD (evpipe [0]); 3089 EV_WIN32_CLOSE_FD (evpipe [0]);
2491 EV_WIN32_CLOSE_FD (evpipe [1]);
2492 }
2493 3090
2494#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2495 evpipe_init (EV_A); 3091 evpipe_init (EV_A);
2496 /* now iterate over everything, in case we missed something */ 3092 /* iterate over everything, in case we missed something before */
2497 pipecb (EV_A_ &pipe_w, EV_READ); 3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2498#endif
2499 } 3094 }
3095#endif
2500 3096
2501 postfork = 0; 3097 postfork = 0;
2502} 3098}
2503 3099
2504#if EV_MULTIPLICITY 3100#if EV_MULTIPLICITY
2505 3101
3102ecb_cold
2506struct ev_loop * ecb_cold 3103struct ev_loop *
2507ev_loop_new (unsigned int flags) EV_THROW 3104ev_loop_new (unsigned int flags) EV_NOEXCEPT
2508{ 3105{
2509 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3106 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2510 3107
2511 memset (EV_A, 0, sizeof (struct ev_loop)); 3108 memset (EV_A, 0, sizeof (struct ev_loop));
2512 loop_init (EV_A_ flags); 3109 loop_init (EV_A_ flags);
… …
2519} 3116}
2520 3117
2521#endif /* multiplicity */ 3118#endif /* multiplicity */
2522 3119
2523#if EV_VERIFY 3120#if EV_VERIFY
2524static void noinline ecb_cold 3121noinline ecb_cold
3122static void
2525verify_watcher (EV_P_ W w) 3123verify_watcher (EV_P_ W w)
2526{ 3124{
2527 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2528 3126
2529 if (w->pending) 3127 if (w->pending)
2530 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2531} 3129}
2532 3130
2533static void noinline ecb_cold 3131noinline ecb_cold
3132static void
2534verify_heap (EV_P_ ANHE *heap, int N) 3133verify_heap (EV_P_ ANHE *heap, int N)
2535{ 3134{
2536 int i; 3135 int i;
2537 3136
2538 for (i = HEAP0; i < N + HEAP0; ++i) 3137 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2543 3142
2544 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2545 } 3144 }
2546} 3145}
2547 3146
2548static void noinline ecb_cold 3147noinline ecb_cold
3148static void
2549array_verify (EV_P_ W *ws, int cnt) 3149array_verify (EV_P_ W *ws, int cnt)
2550{ 3150{
2551 while (cnt--) 3151 while (cnt--)
2552 { 3152 {
2553 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3153 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2556} 3156}
2557#endif 3157#endif
2558 3158
2559#if EV_FEATURE_API 3159#if EV_FEATURE_API
2560void ecb_cold 3160void ecb_cold
2561ev_verify (EV_P) EV_THROW 3161ev_verify (EV_P) EV_NOEXCEPT
2562{ 3162{
2563#if EV_VERIFY 3163#if EV_VERIFY
2564 int i; 3164 int i;
2565 WL w, w2; 3165 WL w, w2;
2566 3166
… …
2642#endif 3242#endif
2643} 3243}
2644#endif 3244#endif
2645 3245
2646#if EV_MULTIPLICITY 3246#if EV_MULTIPLICITY
3247ecb_cold
2647struct ev_loop * ecb_cold 3248struct ev_loop *
2648#else 3249#else
2649int 3250int
2650#endif 3251#endif
2651ev_default_loop (unsigned int flags) EV_THROW 3252ev_default_loop (unsigned int flags) EV_NOEXCEPT
2652{ 3253{
2653 if (!ev_default_loop_ptr) 3254 if (!ev_default_loop_ptr)
2654 { 3255 {
2655#if EV_MULTIPLICITY 3256#if EV_MULTIPLICITY
2656 EV_P = ev_default_loop_ptr = &default_loop_struct; 3257 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2675 3276
2676 return ev_default_loop_ptr; 3277 return ev_default_loop_ptr;
2677} 3278}
2678 3279
2679void 3280void
2680ev_loop_fork (EV_P) EV_THROW 3281ev_loop_fork (EV_P) EV_NOEXCEPT
2681{ 3282{
2682 postfork = 1; /* must be in line with ev_default_fork */ 3283 postfork = 1;
2683} 3284}
2684 3285
2685/*****************************************************************************/ 3286/*****************************************************************************/
2686 3287
2687void 3288void
… …
2689{ 3290{
2690 EV_CB_INVOKE ((W)w, revents); 3291 EV_CB_INVOKE ((W)w, revents);
2691} 3292}
2692 3293
2693unsigned int 3294unsigned int
2694ev_pending_count (EV_P) EV_THROW 3295ev_pending_count (EV_P) EV_NOEXCEPT
2695{ 3296{
2696 int pri; 3297 int pri;
2697 unsigned int count = 0; 3298 unsigned int count = 0;
2698 3299
2699 for (pri = NUMPRI; pri--; ) 3300 for (pri = NUMPRI; pri--; )
2700 count += pendingcnt [pri]; 3301 count += pendingcnt [pri];
2701 3302
2702 return count; 3303 return count;
2703} 3304}
2704 3305
2705void noinline 3306noinline
3307void
2706ev_invoke_pending (EV_P) 3308ev_invoke_pending (EV_P)
2707{ 3309{
2708 for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ 3310 pendingpri = NUMPRI;
3311
3312 do
3313 {
3314 --pendingpri;
3315
3316 /* pendingpri possibly gets modified in the inner loop */
2709 while (pendingcnt [pendingpri]) 3317 while (pendingcnt [pendingpri])
2710 { 3318 {
2711 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3319 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2712 3320
2713 p->w->pending = 0; 3321 p->w->pending = 0;
2714 EV_CB_INVOKE (p->w, p->events); 3322 EV_CB_INVOKE (p->w, p->events);
2715 EV_FREQUENT_CHECK; 3323 EV_FREQUENT_CHECK;
2716 } 3324 }
3325 }
3326 while (pendingpri);
2717} 3327}
2718 3328
2719#if EV_IDLE_ENABLE 3329#if EV_IDLE_ENABLE
2720/* make idle watchers pending. this handles the "call-idle */ 3330/* make idle watchers pending. this handles the "call-idle */
2721/* only when higher priorities are idle" logic */ 3331/* only when higher priorities are idle" logic */
… …
2779 } 3389 }
2780} 3390}
2781 3391
2782#if EV_PERIODIC_ENABLE 3392#if EV_PERIODIC_ENABLE
2783 3393
2784static void noinline 3394noinline
3395static void
2785periodic_recalc (EV_P_ ev_periodic *w) 3396periodic_recalc (EV_P_ ev_periodic *w)
2786{ 3397{
2787 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
2788 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
2789 3400
… …
2811{ 3422{
2812 EV_FREQUENT_CHECK; 3423 EV_FREQUENT_CHECK;
2813 3424
2814 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3425 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2815 { 3426 {
2816 int feed_count = 0;
2817
2818 do 3427 do
2819 { 3428 {
2820 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3429 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2821 3430
2822 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3431 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2849 } 3458 }
2850} 3459}
2851 3460
2852/* simply recalculate all periodics */ 3461/* simply recalculate all periodics */
2853/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3462/* TODO: maybe ensure that at least one event happens when jumping forward? */
2854static void noinline ecb_cold 3463noinline ecb_cold
3464static void
2855periodics_reschedule (EV_P) 3465periodics_reschedule (EV_P)
2856{ 3466{
2857 int i; 3467 int i;
2858 3468
2859 /* adjust periodics after time jump */ 3469 /* adjust periodics after time jump */
… …
2872 reheap (periodics, periodiccnt); 3482 reheap (periodics, periodiccnt);
2873} 3483}
2874#endif 3484#endif
2875 3485
2876/* adjust all timers by a given offset */ 3486/* adjust all timers by a given offset */
2877static void noinline ecb_cold 3487noinline ecb_cold
3488static void
2878timers_reschedule (EV_P_ ev_tstamp adjust) 3489timers_reschedule (EV_P_ ev_tstamp adjust)
2879{ 3490{
2880 int i; 3491 int i;
2881 3492
2882 for (i = 0; i < timercnt; ++i) 3493 for (i = 0; i < timercnt; ++i)
… …
3081 backend_poll (EV_A_ waittime); 3692 backend_poll (EV_A_ waittime);
3082 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3693 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3083 3694
3084 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3695 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3085 3696
3697 ECB_MEMORY_FENCE_ACQUIRE;
3086 if (pipe_write_skipped) 3698 if (pipe_write_skipped)
3087 { 3699 {
3088 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3700 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3089 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3701 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3090 } 3702 }
… …
3128 3740
3129 return activecnt; 3741 return activecnt;
3130} 3742}
3131 3743
3132void 3744void
3133ev_break (EV_P_ int how) EV_THROW 3745ev_break (EV_P_ int how) EV_NOEXCEPT
3134{ 3746{
3135 loop_done = how; 3747 loop_done = how;
3136} 3748}
3137 3749
3138void 3750void
3139ev_ref (EV_P) EV_THROW 3751ev_ref (EV_P) EV_NOEXCEPT
3140{ 3752{
3141 ++activecnt; 3753 ++activecnt;
3142} 3754}
3143 3755
3144void 3756void
3145ev_unref (EV_P) EV_THROW 3757ev_unref (EV_P) EV_NOEXCEPT
3146{ 3758{
3147 --activecnt; 3759 --activecnt;
3148} 3760}
3149 3761
3150void 3762void
3151ev_now_update (EV_P) EV_THROW 3763ev_now_update (EV_P) EV_NOEXCEPT
3152{ 3764{
3153 time_update (EV_A_ 1e100); 3765 time_update (EV_A_ 1e100);
3154} 3766}
3155 3767
3156void 3768void
3157ev_suspend (EV_P) EV_THROW 3769ev_suspend (EV_P) EV_NOEXCEPT
3158{ 3770{
3159 ev_now_update (EV_A); 3771 ev_now_update (EV_A);
3160} 3772}
3161 3773
3162void 3774void
3163ev_resume (EV_P) EV_THROW 3775ev_resume (EV_P) EV_NOEXCEPT
3164{ 3776{
3165 ev_tstamp mn_prev = mn_now; 3777 ev_tstamp mn_prev = mn_now;
3166 3778
3167 ev_now_update (EV_A); 3779 ev_now_update (EV_A);
3168 timers_reschedule (EV_A_ mn_now - mn_prev); 3780 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3207 w->pending = 0; 3819 w->pending = 0;
3208 } 3820 }
3209} 3821}
3210 3822
3211int 3823int
3212ev_clear_pending (EV_P_ void *w) EV_THROW 3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3213{ 3825{
3214 W w_ = (W)w; 3826 W w_ = (W)w;
3215 int pending = w_->pending; 3827 int pending = w_->pending;
3216 3828
3217 if (expect_true (pending)) 3829 if (expect_true (pending))
… …
3249 w->active = 0; 3861 w->active = 0;
3250} 3862}
3251 3863
3252/*****************************************************************************/ 3864/*****************************************************************************/
3253 3865
3254void noinline 3866noinline
3867void
3255ev_io_start (EV_P_ ev_io *w) EV_THROW 3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3256{ 3869{
3257 int fd = w->fd; 3870 int fd = w->fd;
3258 3871
3259 if (expect_false (ev_is_active (w))) 3872 if (expect_false (ev_is_active (w)))
3260 return; 3873 return;
… …
3275 w->events &= ~EV__IOFDSET; 3888 w->events &= ~EV__IOFDSET;
3276 3889
3277 EV_FREQUENT_CHECK; 3890 EV_FREQUENT_CHECK;
3278} 3891}
3279 3892
3280void noinline 3893noinline
3894void
3281ev_io_stop (EV_P_ ev_io *w) EV_THROW 3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3282{ 3896{
3283 clear_pending (EV_A_ (W)w); 3897 clear_pending (EV_A_ (W)w);
3284 if (expect_false (!ev_is_active (w))) 3898 if (expect_false (!ev_is_active (w)))
3285 return; 3899 return;
3286 3900
… …
3294 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3295 3909
3296 EV_FREQUENT_CHECK; 3910 EV_FREQUENT_CHECK;
3297} 3911}
3298 3912
3299void noinline 3913noinline
3914void
3300ev_timer_start (EV_P_ ev_timer *w) EV_THROW 3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3301{ 3916{
3302 if (expect_false (ev_is_active (w))) 3917 if (expect_false (ev_is_active (w)))
3303 return; 3918 return;
3304 3919
3305 ev_at (w) += mn_now; 3920 ev_at (w) += mn_now;
… …
3318 EV_FREQUENT_CHECK; 3933 EV_FREQUENT_CHECK;
3319 3934
3320 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3321} 3936}
3322 3937
3323void noinline 3938noinline
3939void
3324ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3325{ 3941{
3326 clear_pending (EV_A_ (W)w); 3942 clear_pending (EV_A_ (W)w);
3327 if (expect_false (!ev_is_active (w))) 3943 if (expect_false (!ev_is_active (w)))
3328 return; 3944 return;
3329 3945
… …
3348 ev_stop (EV_A_ (W)w); 3964 ev_stop (EV_A_ (W)w);
3349 3965
3350 EV_FREQUENT_CHECK; 3966 EV_FREQUENT_CHECK;
3351} 3967}
3352 3968
3353void noinline 3969noinline
3970void
3354ev_timer_again (EV_P_ ev_timer *w) EV_THROW 3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3355{ 3972{
3356 EV_FREQUENT_CHECK; 3973 EV_FREQUENT_CHECK;
3357 3974
3358 clear_pending (EV_A_ (W)w); 3975 clear_pending (EV_A_ (W)w);
3359 3976
… …
3376 3993
3377 EV_FREQUENT_CHECK; 3994 EV_FREQUENT_CHECK;
3378} 3995}
3379 3996
3380ev_tstamp 3997ev_tstamp
3381ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3382{ 3999{
3383 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3384} 4001}
3385 4002
3386#if EV_PERIODIC_ENABLE 4003#if EV_PERIODIC_ENABLE
3387void noinline 4004noinline
4005void
3388ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3389{ 4007{
3390 if (expect_false (ev_is_active (w))) 4008 if (expect_false (ev_is_active (w)))
3391 return; 4009 return;
3392 4010
3393 if (w->reschedule_cb) 4011 if (w->reschedule_cb)
… …
3412 EV_FREQUENT_CHECK; 4030 EV_FREQUENT_CHECK;
3413 4031
3414 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3415} 4033}
3416 4034
3417void noinline 4035noinline
4036void
3418ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3419{ 4038{
3420 clear_pending (EV_A_ (W)w); 4039 clear_pending (EV_A_ (W)w);
3421 if (expect_false (!ev_is_active (w))) 4040 if (expect_false (!ev_is_active (w)))
3422 return; 4041 return;
3423 4042
… …
3440 ev_stop (EV_A_ (W)w); 4059 ev_stop (EV_A_ (W)w);
3441 4060
3442 EV_FREQUENT_CHECK; 4061 EV_FREQUENT_CHECK;
3443} 4062}
3444 4063
3445void noinline 4064noinline
4065void
3446ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3447{ 4067{
3448 /* TODO: use adjustheap and recalculation */ 4068 /* TODO: use adjustheap and recalculation */
3449 ev_periodic_stop (EV_A_ w); 4069 ev_periodic_stop (EV_A_ w);
3450 ev_periodic_start (EV_A_ w); 4070 ev_periodic_start (EV_A_ w);
3451} 4071}
… …
3455# define SA_RESTART 0 4075# define SA_RESTART 0
3456#endif 4076#endif
3457 4077
3458#if EV_SIGNAL_ENABLE 4078#if EV_SIGNAL_ENABLE
3459 4079
3460void noinline 4080noinline
4081void
3461ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3462{ 4083{
3463 if (expect_false (ev_is_active (w))) 4084 if (expect_false (ev_is_active (w)))
3464 return; 4085 return;
3465 4086
3466 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3468#if EV_MULTIPLICITY 4089#if EV_MULTIPLICITY
3469 assert (("libev: a signal must not be attached to two different loops", 4090 assert (("libev: a signal must not be attached to two different loops",
3470 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 4091 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3471 4092
3472 signals [w->signum - 1].loop = EV_A; 4093 signals [w->signum - 1].loop = EV_A;
4094 ECB_MEMORY_FENCE_RELEASE;
3473#endif 4095#endif
3474 4096
3475 EV_FREQUENT_CHECK; 4097 EV_FREQUENT_CHECK;
3476 4098
3477#if EV_USE_SIGNALFD 4099#if EV_USE_SIGNALFD
… …
3536 } 4158 }
3537 4159
3538 EV_FREQUENT_CHECK; 4160 EV_FREQUENT_CHECK;
3539} 4161}
3540 4162
3541void noinline 4163noinline
4164void
3542ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3543{ 4166{
3544 clear_pending (EV_A_ (W)w); 4167 clear_pending (EV_A_ (W)w);
3545 if (expect_false (!ev_is_active (w))) 4168 if (expect_false (!ev_is_active (w)))
3546 return; 4169 return;
3547 4170
… …
3578#endif 4201#endif
3579 4202
3580#if EV_CHILD_ENABLE 4203#if EV_CHILD_ENABLE
3581 4204
3582void 4205void
3583ev_child_start (EV_P_ ev_child *w) EV_THROW 4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3584{ 4207{
3585#if EV_MULTIPLICITY 4208#if EV_MULTIPLICITY
3586 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3587#endif 4210#endif
3588 if (expect_false (ev_is_active (w))) 4211 if (expect_false (ev_is_active (w)))
… …
3595 4218
3596 EV_FREQUENT_CHECK; 4219 EV_FREQUENT_CHECK;
3597} 4220}
3598 4221
3599void 4222void
3600ev_child_stop (EV_P_ ev_child *w) EV_THROW 4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
3601{ 4224{
3602 clear_pending (EV_A_ (W)w); 4225 clear_pending (EV_A_ (W)w);
3603 if (expect_false (!ev_is_active (w))) 4226 if (expect_false (!ev_is_active (w)))
3604 return; 4227 return;
3605 4228
… …
3622 4245
3623#define DEF_STAT_INTERVAL 5.0074891 4246#define DEF_STAT_INTERVAL 5.0074891
3624#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
3625#define MIN_STAT_INTERVAL 0.1074891 4248#define MIN_STAT_INTERVAL 0.1074891
3626 4249
3627static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
3628 4251
3629#if EV_USE_INOTIFY 4252#if EV_USE_INOTIFY
3630 4253
3631/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
3632# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3633 4256
3634static void noinline 4257noinline
4258static void
3635infy_add (EV_P_ ev_stat *w) 4259infy_add (EV_P_ ev_stat *w)
3636{ 4260{
3637 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); 4261 w->wd = inotify_add_watch (fs_fd, w->path,
4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4263 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4264 | IN_DONT_FOLLOW | IN_MASK_ADD);
3638 4265
3639 if (w->wd >= 0) 4266 if (w->wd >= 0)
3640 { 4267 {
3641 struct statfs sfs; 4268 struct statfs sfs;
3642 4269
… …
3646 4273
3647 if (!fs_2625) 4274 if (!fs_2625)
3648 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4275 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3649 else if (!statfs (w->path, &sfs) 4276 else if (!statfs (w->path, &sfs)
3650 && (sfs.f_type == 0x1373 /* devfs */ 4277 && (sfs.f_type == 0x1373 /* devfs */
4278 || sfs.f_type == 0x4006 /* fat */
4279 || sfs.f_type == 0x4d44 /* msdos */
3651 || sfs.f_type == 0xEF53 /* ext2/3 */ 4280 || sfs.f_type == 0xEF53 /* ext2/3 */
4281 || sfs.f_type == 0x72b6 /* jffs2 */
4282 || sfs.f_type == 0x858458f6 /* ramfs */
4283 || sfs.f_type == 0x5346544e /* ntfs */
3652 || sfs.f_type == 0x3153464a /* jfs */ 4284 || sfs.f_type == 0x3153464a /* jfs */
4285 || sfs.f_type == 0x9123683e /* btrfs */
3653 || sfs.f_type == 0x52654973 /* reiser3 */ 4286 || sfs.f_type == 0x52654973 /* reiser3 */
3654 || sfs.f_type == 0x01021994 /* tempfs */ 4287 || sfs.f_type == 0x01021994 /* tmpfs */
3655 || sfs.f_type == 0x58465342 /* xfs */)) 4288 || sfs.f_type == 0x58465342 /* xfs */))
3656 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4289 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3657 else 4290 else
3658 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4291 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3659 } 4292 }
… …
3694 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4327 if (ev_is_active (&w->timer)) ev_ref (EV_A);
3695 ev_timer_again (EV_A_ &w->timer); 4328 ev_timer_again (EV_A_ &w->timer);
3696 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4329 if (ev_is_active (&w->timer)) ev_unref (EV_A);
3697} 4330}
3698 4331
3699static void noinline 4332noinline
4333static void
3700infy_del (EV_P_ ev_stat *w) 4334infy_del (EV_P_ ev_stat *w)
3701{ 4335{
3702 int slot; 4336 int slot;
3703 int wd = w->wd; 4337 int wd = w->wd;
3704 4338
… …
3711 4345
3712 /* remove this watcher, if others are watching it, they will rearm */ 4346 /* remove this watcher, if others are watching it, they will rearm */
3713 inotify_rm_watch (fs_fd, wd); 4347 inotify_rm_watch (fs_fd, wd);
3714} 4348}
3715 4349
3716static void noinline 4350noinline
4351static void
3717infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
3718{ 4353{
3719 if (slot < 0) 4354 if (slot < 0)
3720 /* overflow, need to check for all hash slots */ 4355 /* overflow, need to check for all hash slots */
3721 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4356 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
3757 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4392 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3758 ofs += sizeof (struct inotify_event) + ev->len; 4393 ofs += sizeof (struct inotify_event) + ev->len;
3759 } 4394 }
3760} 4395}
3761 4396
3762inline_size void ecb_cold 4397inline_size ecb_cold
4398void
3763ev_check_2625 (EV_P) 4399ev_check_2625 (EV_P)
3764{ 4400{
3765 /* kernels < 2.6.25 are borked 4401 /* kernels < 2.6.25 are borked
3766 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4402 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3767 */ 4403 */
… …
3857#else 4493#else
3858# define EV_LSTAT(p,b) lstat (p, b) 4494# define EV_LSTAT(p,b) lstat (p, b)
3859#endif 4495#endif
3860 4496
3861void 4497void
3862ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4498ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
3863{ 4499{
3864 if (lstat (w->path, &w->attr) < 0) 4500 if (lstat (w->path, &w->attr) < 0)
3865 w->attr.st_nlink = 0; 4501 w->attr.st_nlink = 0;
3866 else if (!w->attr.st_nlink) 4502 else if (!w->attr.st_nlink)
3867 w->attr.st_nlink = 1; 4503 w->attr.st_nlink = 1;
3868} 4504}
3869 4505
3870static void noinline 4506noinline
4507static void
3871stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4508stat_timer_cb (EV_P_ ev_timer *w_, int revents)
3872{ 4509{
3873 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
3874 4511
3875 ev_statdata prev = w->attr; 4512 ev_statdata prev = w->attr;
… …
3906 ev_feed_event (EV_A_ w, EV_STAT); 4543 ev_feed_event (EV_A_ w, EV_STAT);
3907 } 4544 }
3908} 4545}
3909 4546
3910void 4547void
3911ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
3912{ 4549{
3913 if (expect_false (ev_is_active (w))) 4550 if (expect_false (ev_is_active (w)))
3914 return; 4551 return;
3915 4552
3916 ev_stat_stat (EV_A_ w); 4553 ev_stat_stat (EV_A_ w);
… …
3937 4574
3938 EV_FREQUENT_CHECK; 4575 EV_FREQUENT_CHECK;
3939} 4576}
3940 4577
3941void 4578void
3942ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
3943{ 4580{
3944 clear_pending (EV_A_ (W)w); 4581 clear_pending (EV_A_ (W)w);
3945 if (expect_false (!ev_is_active (w))) 4582 if (expect_false (!ev_is_active (w)))
3946 return; 4583 return;
3947 4584
… …
3963} 4600}
3964#endif 4601#endif
3965 4602
3966#if EV_IDLE_ENABLE 4603#if EV_IDLE_ENABLE
3967void 4604void
3968ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
3969{ 4606{
3970 if (expect_false (ev_is_active (w))) 4607 if (expect_false (ev_is_active (w)))
3971 return; 4608 return;
3972 4609
3973 pri_adjust (EV_A_ (W)w); 4610 pri_adjust (EV_A_ (W)w);
… …
3986 4623
3987 EV_FREQUENT_CHECK; 4624 EV_FREQUENT_CHECK;
3988} 4625}
3989 4626
3990void 4627void
3991ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
3992{ 4629{
3993 clear_pending (EV_A_ (W)w); 4630 clear_pending (EV_A_ (W)w);
3994 if (expect_false (!ev_is_active (w))) 4631 if (expect_false (!ev_is_active (w)))
3995 return; 4632 return;
3996 4633
… …
4010} 4647}
4011#endif 4648#endif
4012 4649
4013#if EV_PREPARE_ENABLE 4650#if EV_PREPARE_ENABLE
4014void 4651void
4015ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4016{ 4653{
4017 if (expect_false (ev_is_active (w))) 4654 if (expect_false (ev_is_active (w)))
4018 return; 4655 return;
4019 4656
4020 EV_FREQUENT_CHECK; 4657 EV_FREQUENT_CHECK;
… …
4025 4662
4026 EV_FREQUENT_CHECK; 4663 EV_FREQUENT_CHECK;
4027} 4664}
4028 4665
4029void 4666void
4030ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4031{ 4668{
4032 clear_pending (EV_A_ (W)w); 4669 clear_pending (EV_A_ (W)w);
4033 if (expect_false (!ev_is_active (w))) 4670 if (expect_false (!ev_is_active (w)))
4034 return; 4671 return;
4035 4672
… …
4048} 4685}
4049#endif 4686#endif
4050 4687
4051#if EV_CHECK_ENABLE 4688#if EV_CHECK_ENABLE
4052void 4689void
4053ev_check_start (EV_P_ ev_check *w) EV_THROW 4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4054{ 4691{
4055 if (expect_false (ev_is_active (w))) 4692 if (expect_false (ev_is_active (w)))
4056 return; 4693 return;
4057 4694
4058 EV_FREQUENT_CHECK; 4695 EV_FREQUENT_CHECK;
… …
4063 4700
4064 EV_FREQUENT_CHECK; 4701 EV_FREQUENT_CHECK;
4065} 4702}
4066 4703
4067void 4704void
4068ev_check_stop (EV_P_ ev_check *w) EV_THROW 4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4069{ 4706{
4070 clear_pending (EV_A_ (W)w); 4707 clear_pending (EV_A_ (W)w);
4071 if (expect_false (!ev_is_active (w))) 4708 if (expect_false (!ev_is_active (w)))
4072 return; 4709 return;
4073 4710
… …
4085 EV_FREQUENT_CHECK; 4722 EV_FREQUENT_CHECK;
4086} 4723}
4087#endif 4724#endif
4088 4725
4089#if EV_EMBED_ENABLE 4726#if EV_EMBED_ENABLE
4090void noinline 4727noinline
4728void
4091ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4092{ 4730{
4093 ev_run (w->other, EVRUN_NOWAIT); 4731 ev_run (w->other, EVRUN_NOWAIT);
4094} 4732}
4095 4733
4096static void 4734static void
… …
4144 ev_idle_stop (EV_A_ idle); 4782 ev_idle_stop (EV_A_ idle);
4145} 4783}
4146#endif 4784#endif
4147 4785
4148void 4786void
4149ev_embed_start (EV_P_ ev_embed *w) EV_THROW 4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4150{ 4788{
4151 if (expect_false (ev_is_active (w))) 4789 if (expect_false (ev_is_active (w)))
4152 return; 4790 return;
4153 4791
4154 { 4792 {
… …
4175 4813
4176 EV_FREQUENT_CHECK; 4814 EV_FREQUENT_CHECK;
4177} 4815}
4178 4816
4179void 4817void
4180ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4181{ 4819{
4182 clear_pending (EV_A_ (W)w); 4820 clear_pending (EV_A_ (W)w);
4183 if (expect_false (!ev_is_active (w))) 4821 if (expect_false (!ev_is_active (w)))
4184 return; 4822 return;
4185 4823
… …
4195} 4833}
4196#endif 4834#endif
4197 4835
4198#if EV_FORK_ENABLE 4836#if EV_FORK_ENABLE
4199void 4837void
4200ev_fork_start (EV_P_ ev_fork *w) EV_THROW 4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4201{ 4839{
4202 if (expect_false (ev_is_active (w))) 4840 if (expect_false (ev_is_active (w)))
4203 return; 4841 return;
4204 4842
4205 EV_FREQUENT_CHECK; 4843 EV_FREQUENT_CHECK;
… …
4210 4848
4211 EV_FREQUENT_CHECK; 4849 EV_FREQUENT_CHECK;
4212} 4850}
4213 4851
4214void 4852void
4215ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4216{ 4854{
4217 clear_pending (EV_A_ (W)w); 4855 clear_pending (EV_A_ (W)w);
4218 if (expect_false (!ev_is_active (w))) 4856 if (expect_false (!ev_is_active (w)))
4219 return; 4857 return;
4220 4858
… …
4233} 4871}
4234#endif 4872#endif
4235 4873
4236#if EV_CLEANUP_ENABLE 4874#if EV_CLEANUP_ENABLE
4237void 4875void
4238ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4239{ 4877{
4240 if (expect_false (ev_is_active (w))) 4878 if (expect_false (ev_is_active (w)))
4241 return; 4879 return;
4242 4880
4243 EV_FREQUENT_CHECK; 4881 EV_FREQUENT_CHECK;
… …
4250 ev_unref (EV_A); 4888 ev_unref (EV_A);
4251 EV_FREQUENT_CHECK; 4889 EV_FREQUENT_CHECK;
4252} 4890}
4253 4891
4254void 4892void
4255ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4256{ 4894{
4257 clear_pending (EV_A_ (W)w); 4895 clear_pending (EV_A_ (W)w);
4258 if (expect_false (!ev_is_active (w))) 4896 if (expect_false (!ev_is_active (w)))
4259 return; 4897 return;
4260 4898
… …
4274} 4912}
4275#endif 4913#endif
4276 4914
4277#if EV_ASYNC_ENABLE 4915#if EV_ASYNC_ENABLE
4278void 4916void
4279ev_async_start (EV_P_ ev_async *w) EV_THROW 4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4280{ 4918{
4281 if (expect_false (ev_is_active (w))) 4919 if (expect_false (ev_is_active (w)))
4282 return; 4920 return;
4283 4921
4284 w->sent = 0; 4922 w->sent = 0;
… …
4293 4931
4294 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
4295} 4933}
4296 4934
4297void 4935void
4298ev_async_stop (EV_P_ ev_async *w) EV_THROW 4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4299{ 4937{
4300 clear_pending (EV_A_ (W)w); 4938 clear_pending (EV_A_ (W)w);
4301 if (expect_false (!ev_is_active (w))) 4939 if (expect_false (!ev_is_active (w)))
4302 return; 4940 return;
4303 4941
… …
4314 4952
4315 EV_FREQUENT_CHECK; 4953 EV_FREQUENT_CHECK;
4316} 4954}
4317 4955
4318void 4956void
4319ev_async_send (EV_P_ ev_async *w) EV_THROW 4957ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4320{ 4958{
4321 w->sent = 1; 4959 w->sent = 1;
4322 evpipe_write (EV_A_ &async_pending); 4960 evpipe_write (EV_A_ &async_pending);
4323} 4961}
4324#endif 4962#endif
… …
4361 4999
4362 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5000 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4363} 5001}
4364 5002
4365void 5003void
4366ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5004ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4367{ 5005{
4368 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5006 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4369
4370 if (expect_false (!once))
4371 {
4372 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4373 return;
4374 }
4375 5007
4376 once->cb = cb; 5008 once->cb = cb;
4377 once->arg = arg; 5009 once->arg = arg;
4378 5010
4379 ev_init (&once->io, once_cb_io); 5011 ev_init (&once->io, once_cb_io);
… …
4392} 5024}
4393 5025
4394/*****************************************************************************/ 5026/*****************************************************************************/
4395 5027
4396#if EV_WALK_ENABLE 5028#if EV_WALK_ENABLE
4397void ecb_cold 5029ecb_cold
5030void
4398ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5031ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4399{ 5032{
4400 int i, j; 5033 int i, j;
4401 ev_watcher_list *wl, *wn; 5034 ev_watcher_list *wl, *wn;
4402 5035
4403 if (types & (EV_IO | EV_EMBED)) 5036 if (types & (EV_IO | EV_EMBED))

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