Cider Isn't Darwin Emulation, Really
Something went wrong. Try again.
4.3 kB · 130 lines
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131/* * Copyright (c) 2006 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */
#ifndef _OS__OSBYTEORDER_H#define _OS__OSBYTEORDER_H
/* * This header is normally included from <libkern/OSByteOrder.h>. However, * <sys/_endian.h> also includes this in the case of little-endian * architectures, so that we can map OSByteOrder routines to the hton* and ntoh* * macros. This results in the asymmetry below; we only include * <libkern/arch/_OSByteOrder.h> for little-endian architectures. */
#include <sys/_types.h>
/* Macros for swapping constant values in the preprocessing stage. */#define __DARWIN_OSSwapConstInt16(x) \ ((__uint16_t)((((__uint16_t)(x) & 0xff00) >> 8) | \ (((__uint16_t)(x) & 0x00ff) << 8)))
#define __DARWIN_OSSwapConstInt32(x) \ ((__uint32_t)((((__uint32_t)(x) & 0xff000000) >> 24) | \ (((__uint32_t)(x) & 0x00ff0000) >> 8) | \ (((__uint32_t)(x) & 0x0000ff00) << 8) | \ (((__uint32_t)(x) & 0x000000ff) << 24)))
#define __DARWIN_OSSwapConstInt64(x) \ ((__uint64_t)((((__uint64_t)(x) & 0xff00000000000000ULL) >> 56) | \ (((__uint64_t)(x) & 0x00ff000000000000ULL) >> 40) | \ (((__uint64_t)(x) & 0x0000ff0000000000ULL) >> 24) | \ (((__uint64_t)(x) & 0x000000ff00000000ULL) >> 8) | \ (((__uint64_t)(x) & 0x00000000ff000000ULL) << 8) | \ (((__uint64_t)(x) & 0x0000000000ff0000ULL) << 24) | \ (((__uint64_t)(x) & 0x000000000000ff00ULL) << 40) | \ (((__uint64_t)(x) & 0x00000000000000ffULL) << 56)))
#if defined(__GNUC__)
#if defined(__i386__) || defined(__x86_64__)#include <libkern/i386/_OSByteOrder.h>#endif
#define __DARWIN_OSSwapInt16(x) \ ((__uint16_t)(__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt16(x) : _OSSwapInt16(x)))
#define __DARWIN_OSSwapInt32(x) \ (__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt32(x) : _OSSwapInt32(x))
#define __DARWIN_OSSwapInt64(x) \ (__builtin_constant_p(x) ? __DARWIN_OSSwapConstInt64(x) : _OSSwapInt64(x))
#else /* ! __GNUC__ */
#if defined(__i386__) || defined(__x86_64__)
#if !defined(__DARWIN_OS_INLINE)# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L# define __DARWIN_OS_INLINE static inline# elif defined(__MWERKS__) || defined(__cplusplus)# define __DARWIN_OS_INLINE static inline# else# define __DARWIN_OS_INLINE static __inline__# endif#endif
__DARWIN_OS_INLINEuint16_t_OSSwapInt16( uint16_t data){ return __DARWIN_OSSwapConstInt16(data);}
__DARWIN_OS_INLINEuint32_t_OSSwapInt32( uint32_t data){ return __DARWIN_OSSwapConstInt32(data);}
__DARWIN_OS_INLINEuint64_t_OSSwapInt64( uint64_t data){ return __DARWIN_OSSwapConstInt64(data);}#endif
#define __DARWIN_OSSwapInt16(x) _OSSwapInt16(x)
#define __DARWIN_OSSwapInt32(x) _OSSwapInt32(x)
#define __DARWIN_OSSwapInt64(x) _OSSwapInt64(x)
#endif /* __GNUC__ */
#endif /* ! _OS__OSBYTEORDER_H */