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/*
* The block 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_INTERNAL_BLOCK_H )
#define _LIBFDATA_INTERNAL_BLOCK_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_internal_block libfdata_internal_block_t;
struct libfdata_internal_block
{
/* The data offset
*/
off64_t data_offset;
/* The segment index
*/
int segment_index;
/* The segment data offset
*/
size_t segment_data_offset;
/* The segments list
*/
libfdata_list_t *segments_list;
/* The flags
*/
uint8_t flags;
/* The io handle
*/
intptr_t *io_handle;
/* The free io handle function
*/
int (*free_io_handle)(
intptr_t **io_handle,
libcerror_error_t **error );
/* The clone (duplicate) io handle function
*/
int (*clone_io_handle)(
intptr_t **destination_io_handle,
intptr_t *source_io_handle,
libcerror_error_t **error );
/* The read segment data function
*/
ssize_t (*read_segment_data)(
intptr_t *io_handle,
libbfio_handle_t *file_io_handle,
int segment_index,
uint8_t *data,
size_t data_size,
uint8_t read_flags,
libcerror_error_t **error );
};
LIBFDATA_EXTERN \
int libfdata_block_initialize(
libfdata_block_t **block,
intptr_t *io_handle,
int (*free_io_handle)(
intptr_t **io_handle,
libcerror_error_t **error ),
int (*clone_io_handle)(
intptr_t **destination_io_handle,
intptr_t *source_io_handle,
libcerror_error_t **error ),
ssize_t (*read_segment_data)(
intptr_t *io_handle,
libbfio_handle_t *file_io_handle,
int segment_index,
uint8_t *data,
size_t data_size,
uint8_t read_flags,
libcerror_error_t **error ),
uint8_t flags,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_free(
libfdata_block_t **block,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_clone(
libfdata_block_t **destination_block,
libfdata_block_t *source_block,
libcerror_error_t **error );
/* Segment functions
*/
LIBFDATA_EXTERN \
int libfdata_block_resize_segments(
libfdata_block_t *block,
int number_of_segments,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_get_number_of_segments(
libfdata_block_t *block,
int *number_of_segments,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_get_segment_by_index(
libfdata_block_t *block,
int segment_index,
off64_t *segment_offset,
size64_t *segment_size,
uint32_t *segment_flags,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_set_segment_by_index(
libfdata_block_t *block,
int segment_index,
off64_t segment_offset,
size64_t segment_size,
uint32_t segment_flags,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_append_segment(
libfdata_block_t *block,
off64_t segment_offset,
size64_t segment_size,
uint32_t segment_flags,
libcerror_error_t **error );
/* Data functions
*/
LIBFDATA_EXTERN \
int libfdata_block_get_size(
libfdata_block_t *block,
size64_t *size,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_get_data(
libfdata_block_t *block,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
uint8_t **data,
size_t *data_size,
libcerror_error_t **error );
LIBFDATA_EXTERN \
int libfdata_block_get_segment_data(
libfdata_block_t *block,
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 );
LIBFDATA_EXTERN \
int libfdata_block_get_segment_data_at_offset(
libfdata_block_t *block,
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 );
LIBFDATA_EXTERN \
int libfdata_block_get_segment_data_at_value_index(
libfdata_block_t *block,
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 );
LIBFDATA_EXTERN \
int libfdata_block_set_segment_data(
libfdata_block_t *block,
libfcache_cache_t *cache,
int segment_index,
uint8_t *data,
size_t data_size,
uint8_t flags,
libcerror_error_t **error );
/* IO functions
*/
int libfdata_block_read_element_data(
intptr_t *io_handle,
libbfio_handle_t *file_io_handle,
libfdata_list_element_t *list_element,
libfcache_cache_t *cache,
off64_t element_data_offset,
size64_t element_data_size,
uint32_t element_data_range_flags,
uint8_t read_flags,
libcerror_error_t **error );
LIBFDATA_EXTERN \
ssize_t libfdata_block_read_segment_data(
intptr_t *io_handle,
libbfio_handle_t *file_io_handle,
int segment_index,
uint8_t *data,
size_t data_size,
uint8_t read_flags,
libcerror_error_t **error );
LIBFDATA_EXTERN \
ssize_t libfdata_block_read_buffer(
libfdata_block_t *block,
libbfio_handle_t *file_io_handle,
libfcache_cache_t *cache,
uint8_t *buffer,
size_t buffer_size,
libcerror_error_t **error );
LIBFDATA_EXTERN \
off64_t libfdata_block_seek_offset(
libfdata_block_t *block,
off64_t offset,
int whence,
libcerror_error_t **error );
#if defined( __cplusplus )
}
#endif
#endif
|
