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/*
* Buffer data reference functions
*
* Copyright (c) 2010-2012, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This software is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this software. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined( _LIBFDATA_BUFFER_REFERENCE_H )
#define _LIBFDATA_BUFFER_REFERENCE_H
#include <common.h>
#include <types.h>
#include "libfdata_extern.h"
#include "libfdata_libbfio.h"
#include "libfdata_libcerror.h"
#include "libfdata_libfcache.h"
#include "libfdata_types.h"
#if defined( __cplusplus )
extern "C" {
#endif
typedef struct libfdata_buffer_reference libfdata_buffer_reference_t;
struct libfdata_buffer_reference
{
/* The data offset
*/
off64_t data_offset;
/* The data
*/
uint8_t *data;
/* The data size
*/
size_t data_size;
/* The flags
*/
uint8_t flags;
};
LIBFDATA_EXTERN \
int libfdata_buffer_reference_initialize(
libfdata_reference_t **reference,
const uint8_t *buffer,
size_t buffer_size,
uint8_t flags,
libcerror_error_t **error );
int libfdata_buffer_reference_free(
libfdata_buffer_reference_t **buffer_reference,
libcerror_error_t **error );
int libfdata_buffer_reference_clone(
libfdata_buffer_reference_t **destination_buffer_reference,
libfdata_buffer_reference_t *source_buffer_reference,
libcerror_error_t **error );
/* Segment functions
*/
int libfdata_buffer_reference_get_number_of_segments(
libfdata_buffer_reference_t *buffer_reference,
int *number_of_segments,
libcerror_error_t **error );
/* Data functions
*/
int libfdata_buffer_reference_get_size(
libfdata_buffer_reference_t *buffer_reference,
size64_t *size,
libcerror_error_t **error );
int libfdata_buffer_reference_get_data(
libfdata_buffer_reference_t *buffer_reference,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
uint8_t **data,
size_t *data_size,
libcerror_error_t **error );
int libfdata_buffer_reference_get_segment_data(
libfdata_buffer_reference_t *buffer_reference,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
int segment_index,
uint8_t **data,
size_t *data_size,
uint8_t read_flags,
libcerror_error_t **error );
int libfdata_buffer_reference_get_segment_data_at_offset(
libfdata_buffer_reference_t *buffer_reference,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
off64_t data_offset,
uint8_t **data,
size_t *data_size,
uint8_t read_flags,
libcerror_error_t **error );
int libfdata_buffer_reference_get_segment_data_at_value_index(
libfdata_buffer_reference_t *buffer_reference,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
int value_index,
size_t value_size,
uint8_t **data,
size_t *data_size,
uint8_t read_flags,
libcerror_error_t **error );
/* IO functions
*/
ssize_t libfdata_buffer_reference_read_buffer(
libfdata_buffer_reference_t *buffer_reference,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
uint8_t *buffer,
size_t buffer_size,
libcerror_error_t **error );
off64_t libfdata_buffer_reference_seek_offset(
libfdata_buffer_reference_t *buffer_reference,
off64_t offset,
int whence,
libcerror_error_t **error );
#if defined( __cplusplus )
}
#endif
#endif
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