2009-10-23 01:50:01 +04:00
|
|
|
/* $NetBSD: nilfs_bswap.h,v 1.2 2009/10/22 21:50:01 bouyer Exp $ */
|
2009-07-18 20:31:41 +04:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Copyright (c) 1998 Manuel Bouyer.
|
|
|
|
|
*
|
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
|
* are met:
|
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
|
*
|
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
|
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
|
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
|
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
|
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
|
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
|
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
|
*
|
|
|
|
|
* adapted for NILFS by Reinoud Zandijk <reinoud@netbsd.org>
|
|
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _FS_NILFS_BSWAP_H_
|
|
|
|
|
#define _FS_NILFS_BSWAP_H_
|
|
|
|
|
|
|
|
|
|
#include <sys/endian.h>
|
|
|
|
|
#include <machine/bswap.h>
|
|
|
|
|
#include <sys/bswap.h>
|
|
|
|
|
|
|
|
|
|
/* rest only relevant for big endian machines */
|
|
|
|
|
#if (BYTE_ORDER == BIG_ENDIAN)
|
|
|
|
|
|
|
|
|
|
/* inlines for access to swapped data */
|
|
|
|
|
static __inline uint16_t nilfs_rw16(uint16_t);
|
|
|
|
|
static __inline uint32_t nilfs_rw32(uint32_t);
|
|
|
|
|
static __inline uint64_t nilfs_rw64(uint64_t);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static __inline uint16_t
|
|
|
|
|
nilfs_rw16(uint16_t a)
|
|
|
|
|
{
|
|
|
|
|
return bswap16(a);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static __inline uint32_t
|
|
|
|
|
nilfs_rw32(uint32_t a)
|
|
|
|
|
{
|
|
|
|
|
return bswap32(a);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static __inline uint64_t
|
|
|
|
|
nilfs_rw64(uint64_t a)
|
|
|
|
|
{
|
|
|
|
|
return bswap64(a);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
|
|
#define nilfs_rw16(a) ((uint16_t)(a))
|
|
|
|
|
#define nilfs_rw32(a) ((uint32_t)(a))
|
|
|
|
|
#define nilfs_rw64(a) ((uint64_t)(a))
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* !_FS_NILFS_BSWAP_H_ */
|
|
|
|
|
|
