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libewf_chunk_cache.h
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libewf_chunk_cache.h
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/*
* libewf chunk cache
*
* Copyright (c) 2006-2007, Joachim Metz <forensics@hoffmannbv.nl>,
* Hoffmann Investigations. All rights reserved.
*
* Refer to AUTHORS for acknowledgements.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - 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.
* - Neither the name of the creator, related organisations, nor the names of
* its contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* - All advertising materials mentioning features or use of this software
* must acknowledge the contribution by people stated in the acknowledgements.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER, COMPANY AND CONTRIBUTORS
* "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#ifndef _LIBEWF_CHUNK_CACHE_H
#define _LIBEWF_CHUNK_CACHE_H
#include "libewf_includes.h"
#include "ewf_chunk.h"
#ifdef __cplusplus
extern "C" {
#endif
#define LIBEWF_CHUNK_CACHE libewf_chunk_cache_t
#define LIBEWF_CHUNK_CACHE_SIZE sizeof( LIBEWF_CHUNK_CACHE )
typedef struct libewf_chunk_cache libewf_chunk_cache_t;
struct libewf_chunk_cache
{
/* The allocated size of the cached chunk
*/
size_t allocated_size;
/* The identifier of the cached chunk
*/
uint32_t chunk;
/* The amount of data in the chunk
*/
size_t amount;
/* The offset for data in the chunk
*/
size_t offset;
/* A value to indicate if the chunk is cached
*/
uint8_t cached;
/* The compressed data buffer
*/
EWF_CHUNK *compressed;
/* The data buffer
*/
EWF_CHUNK *data;
};
LIBEWF_CHUNK_CACHE *libewf_chunk_cache_alloc( size_t size );
LIBEWF_CHUNK_CACHE *libewf_chunk_cache_realloc( LIBEWF_CHUNK_CACHE *chunk_cache, size_t size );
void libewf_chunk_cache_free( LIBEWF_CHUNK_CACHE *chunk_cache );
#ifdef __cplusplus
}
#endif
#endif

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