File: //home/django/libpff/libcdata/libcdata_btree_values_list.c
/*
* Balanced tree values list functions
*
* Copyright (C) 2006-2024, Joachim Metz <joachim.metz@gmail.com>
*
* Refer to AUTHORS for acknowledgements.
*
* This program 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 program 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 program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <common.h>
#include <memory.h>
#include <types.h>
#include "libcdata_btree_values_list.h"
#include "libcdata_libcerror.h"
#include "libcdata_list.h"
#include "libcdata_list_element.h"
#include "libcdata_types.h"
/* Frees a B-tree values list
* Returns 1 if successful or -1 on error
*/
int libcdata_btree_values_list_free(
libcdata_list_t **values_list,
libcerror_error_t **error )
{
static char *function = "libcdata_btree_values_list_free";
int result = 1;
if( values_list == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid values list.",
function );
return( -1 );
}
if( libcdata_list_free(
values_list,
NULL,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free values list.",
function );
result = -1;
}
return( result );
}
/* Removes an element from the values list
* Returns 1 if successful or -1 on error
*/
int libcdata_btree_values_list_remove_element(
libcdata_list_t *values_list,
libcdata_list_element_t **values_list_element,
libcerror_error_t **error )
{
static char *function = "libcdata_btree_values_list_remove_element";
if( values_list == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid values list.",
function );
return( -1 );
}
if( values_list_element == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid values list element.",
function );
return( -1 );
}
if( libcdata_list_remove_element(
values_list,
*values_list_element,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_REMOVE_FAILED,
"%s: unable to remove element from values list.",
function );
return( -1 );
}
if( libcdata_list_element_free(
values_list_element,
NULL,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
"%s: unable to free element.",
function );
return( -1 );
}
return( 1 );
}
/* Replaces the values list element with the previous element
* If available replacement_value is set to the value of the previous element
* Returns 1 if successful or -1 on error
*/
int libcdata_btree_values_list_replace_element_with_previous(
libcdata_list_t *values_list,
libcdata_list_element_t **values_list_element,
intptr_t **replacement_value,
libcerror_error_t **error )
{
libcdata_list_element_t *previous_element = NULL;
static char *function = "libcdata_btree_values_list_replace_element_with_previous";
if( values_list == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid values list.",
function );
return( -1 );
}
if( values_list_element == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid values list element.",
function );
return( -1 );
}
if( libcdata_list_element_get_previous_element(
*values_list_element,
&previous_element,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_GET_FAILED,
"%s: unable to retrieve previous element from values list element.",
function );
return( -1 );
}
if( previous_element != NULL )
{
if( libcdata_list_element_get_value(
previous_element,
replacement_value,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_GET_FAILED,
"%s: unable to retrieve value from previous element.",
function );
return( -1 );
}
}
if( libcdata_btree_values_list_remove_element(
values_list,
values_list_element,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_REMOVE_FAILED,
"%s: unable to remove element from values list.",
function );
return( -1 );
}
*values_list_element = previous_element;
return( 1 );
}