/*

 * Store functions

 *

 * Copyright (C) 2011-2023, 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 "libvshadow_block.h"

#include "libvshadow_block_descriptor.h"

#include "libvshadow_block_tree.h"

#include "libvshadow_definitions.h"

#include "libvshadow_libbfio.h"

#include "libvshadow_libcdata.h"

#include "libvshadow_libcerror.h"

#include "libvshadow_libcthreads.h"

#include "libvshadow_store.h"

#include "libvshadow_store_descriptor.h"

#include "libvshadow_volume.h"

/* Creates a store

 * Make sure the value store is referencing, is set to NULL

 * Returns 1 if successful or -1 on error

 */

int libvshadow_store_initialize(

     libvshadow_store_t **store,

     libvshadow_io_handle_t *io_handle,

     libbfio_handle_t *file_io_handle,

     libvshadow_internal_volume_t *internal_volume,

     int store_descriptor_index,

     libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store     = NULL;

  libvshadow_store_descriptor_t *store_descriptor = NULL;

  static char *function                           = "libvshadow_store_initialize";

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  if( *store != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid store value already set.",

     function );

    return( -1 );

  }

  if( io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid IO handle.",

     function );

    return( -1 );

  }

  if( internal_volume == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid volume.",

     function );

    return( -1 );

  }

  /* Make sure there is a store descriptor for the store

   */

  if( libcdata_array_get_entry_by_index(

       internal_volume->store_descriptors_array,

       store_descriptor_index,

       (intptr_t **) &store_descriptor,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve store descriptor: %d.",

     function,

     store_descriptor_index );

    return( -1 );

  }

  internal_store = memory_allocate_structure(

                    libvshadow_internal_store_t );

  if( internal_store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create store.",

     function );

    goto on_error;

  }

  if( memory_set(

       internal_store,

       0,

       sizeof( libvshadow_internal_store_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

     "%s: unable to clear store.",

     function );

    memory_free(

     internal_store );

    return( -1 );

  }

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_initialize(

       &( internal_store->read_write_lock ),

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to initialize read/write lock.",

     function );

    goto on_error;

  }

#endif

  internal_store->file_io_handle         = file_io_handle;

  internal_store->io_handle              = io_handle;

  internal_store->internal_volume        = internal_volume;

  internal_store->store_descriptor       = store_descriptor;

  internal_store->store_descriptor_index = store_descriptor_index;

  *store = (libvshadow_store_t *) internal_store;

  return( 1 );

on_error:

  if( internal_store != NULL )

  {

    memory_free(

     internal_store );

  }

  return( -1 );

}

/* Frees a store

 * Returns 1 if successful or -1 on error

 */

int libvshadow_store_free(

     libvshadow_store_t **store,

     libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_free";

  int result                                  = 1;

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  if( *store != NULL )

  {

    internal_store = (libvshadow_internal_store_t *) *store;

    *store         = NULL;

    /* The file_io_handle, io_handle and internal_volume references are freed elsewhere

     */

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

    if( libcthreads_read_write_lock_free(

         &( internal_store->read_write_lock ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free read/write lock.",

       function );

      result = -1;

    }

#endif

    memory_free(

     internal_store );

  }

  return( result );

}

/* Determines if the store has in-volume data

 * Returns 1 if the store has in-volume data, 0 if not or -1 on error

 */

int libvshadow_store_has_in_volume_data(

     libvshadow_store_t *store,

     libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_has_in_volume_data";

  int result                                  = 0;

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

  if( internal_store->internal_volume == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: invalid store - missing internal volume.",

     function );

    return( -1 );

  }

  result = libvshadow_store_descriptor_has_in_volume_data(

            internal_store->store_descriptor,

            error );

  if( result == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to determine if store descriptor: %d has in-volume data.",

     function,

     internal_store->store_descriptor_index );

    return( -1 );

  }

  return( result );

}

/* Reads (store) data at the current offset into a buffer using a Basic File IO (bfio) handle

 * This function is not multi-thread safe acquire write lock before call

 * Returns the number of bytes read or -1 on error

 */

ssize_t libvshadow_internal_store_read_buffer_from_file_io_handle(

         libvshadow_internal_store_t *internal_store,

         libbfio_handle_t *file_io_handle,

         void *buffer,

         size_t buffer_size,

         libcerror_error_t **error )

{

  static char *function = "libvshadow_internal_store_read_buffer_from_file_io_handle";

  ssize_t read_count    = 0;

  if( internal_store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  if( internal_store->internal_volume == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: invalid store - missing internal volume.",

     function );

    return( -1 );

  }

  if( internal_store->current_offset < 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid store - current offset value out of bounds.",

     function );

    return( -1 );

  }

  if( buffer == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid buffer.",

     function );

    return( -1 );

  }

  if( buffer_size > (size_t) SSIZE_MAX )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,

     "%s: invalid element data size value exceeds maximum.",

     function );

    return( -1 );

  }

  if( ( buffer_size == 0 )

   || ( (size64_t) internal_store->current_offset >= internal_store->internal_volume->size ) )

  {

    return( 0 );

  }

  if( (size64_t) buffer_size > ( internal_store->internal_volume->size - internal_store->current_offset ) )

  {

    buffer_size = (size_t) ( internal_store->internal_volume->size - internal_store->current_offset );

  }

  read_count = libvshadow_store_descriptor_read_buffer(

          internal_store->store_descriptor,

          internal_store->io_handle,

          file_io_handle,

          (uint8_t *) buffer,

          buffer_size,

          internal_store->current_offset,

          internal_store->store_descriptor_index,

          error );

  if( read_count != (ssize_t) buffer_size )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read buffer from store descriptor: %d.",

     function,

     internal_store->store_descriptor_index );

    return( -1 );

  }

  internal_store->current_offset += read_count;

  return( read_count );

}

/* Reads (store) data at the current offset into a buffer

 * Returns the number of bytes read or -1 on error

 */

ssize_t libvshadow_store_read_buffer(

         libvshadow_store_t *store,

         void *buffer,

         size_t buffer_size,

         libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_read_buffer";

  ssize_t read_count                          = 0;

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  read_count = libvshadow_internal_store_read_buffer_from_file_io_handle(

          internal_store,

          internal_store->file_io_handle,

          buffer,

          buffer_size,

          error );

  if( read_count == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read buffer.",

     function );

    read_count = -1;

  }

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  return( read_count );

}

/* Reads (store) data at the current offset into a buffer using a Basic File IO (bfio) handle

 * Returns the number of bytes read or -1 on error

 */

ssize_t libvshadow_store_read_buffer_from_file_io_handle(

         libvshadow_store_t *store,

         libbfio_handle_t *file_io_handle,

         void *buffer,

         size_t buffer_size,

         libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_read_buffer_from_file_io_handle";

  ssize_t read_count                          = 0;

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  read_count = libvshadow_internal_store_read_buffer_from_file_io_handle(

          internal_store,

          file_io_handle,

          buffer,

          buffer_size,

          error );

  if( read_count == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read buffer.",

     function );

    read_count = -1;

  }

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  return( read_count );

}

/* Reads (store) data at a specific offset

 * Returns the number of bytes read or -1 on error

 */

ssize_t libvshadow_store_read_buffer_at_offset(

         libvshadow_store_t *store,

         void *buffer,

         size_t buffer_size,

         off64_t offset,

         libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_read_buffer_at_offset";

  ssize_t read_count                          = 0;

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  if( libvshadow_internal_store_seek_offset(

       internal_store,

       offset,

       SEEK_SET,

       error ) == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_SEEK_FAILED,

     "%s: unable to seek offset.",

     function );

    read_count = -1;

  }

  else

  {

    read_count = libvshadow_internal_store_read_buffer_from_file_io_handle(

            internal_store,

            internal_store->file_io_handle,

            buffer,

            buffer_size,

            error );

    if( read_count == -1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_IO,

       LIBCERROR_IO_ERROR_READ_FAILED,

       "%s: unable to read buffer.",

       function );

      read_count = -1;

    }

  }

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  return( read_count );

}

/* Seeks a certain offset of the (store) data

 * This function is not multi-thread safe acquire write lock before call

 * Returns the offset if seek is successful or -1 on error

 */

off64_t libvshadow_internal_store_seek_offset(

         libvshadow_internal_store_t *internal_store,

         off64_t offset,

         int whence,

         libcerror_error_t **error )

{

  static char *function = "libvshadow_internal_store_seek_offset";

  if( internal_store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  if( internal_store->internal_volume == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: invalid store - missing internal volume.",

     function );

    return( -1 );

  }

  if( ( whence != SEEK_CUR )

   && ( whence != SEEK_END )

   && ( whence != SEEK_SET ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: unsupported whence.",

     function );

    return( -1 );

  }

  if( whence == SEEK_CUR )

  {

    offset += internal_store->current_offset;

  }

  else if( whence == SEEK_END )

  {

    offset += (off64_t) internal_store->internal_volume->size;

  }

  if( offset < 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,

     "%s: invalid offset value out of bounds.",

     function );

    return( -1 );

  }

  internal_store->current_offset = offset;

  return( offset );

}

/* Seeks a certain offset of the (store) data

 * Returns the offset if seek is successful or -1 on error

 */

off64_t libvshadow_store_seek_offset(

         libvshadow_store_t *store,

         off64_t offset,

         int whence,

         libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_seek_offset";

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  offset = libvshadow_internal_store_seek_offset(

            internal_store,

            offset,

            whence,

            error );

  if( offset == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_SEEK_FAILED,

     "%s: unable to seek offset.",

     function );

    offset = -1;

  }

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_write(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for writing.",

     function );

    return( -1 );

  }

#endif

  return( offset );

}

/* Retrieves the current offset of the (store) data

 * Returns 1 if successful or -1 on error

 */

int libvshadow_store_get_offset(

     libvshadow_store_t *store,

     off64_t *offset,

     libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_get_offset";

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

  if( offset == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid offset.",

     function );

    return( -1 );

  }

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_grab_for_read(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to grab read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  *offset = internal_store->current_offset;

#if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT )

  if( libcthreads_read_write_lock_release_for_read(

       internal_store->read_write_lock,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_SET_FAILED,

     "%s: unable to release read/write lock for reading.",

     function );

    return( -1 );

  }

#endif

  return( 1 );

}

/* Retrieves the size

 * Returns 1 if successful or -1 on error

 */

int libvshadow_store_get_size(

     libvshadow_store_t *store,

     size64_t *size,

     libcerror_error_t **error )

{

  libvshadow_internal_store_t *internal_store = NULL;

  static char *function                       = "libvshadow_store_get_size";

  if( store == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid store.",

     function );

    return( -1 );

  }

  internal_store = (libvshadow_internal_store_t *) store;

  if( libvshadow_volume_get_size(

       (libvshadow_volume_t *) internal_store->internal_volume,

       size,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_GET_FAILED,

     "%s: unable to retrieve size from volume.",

     function );

    return( -1 );

  }

  return( 1 );

}

/* Retrieves the volume size as stored in the store information

 * Returns 1 if successful or -1 on error

 */

int libvshadow_store_get_volume_size(

     libvshadow_store_t *store,

     size64_t *volume_size,

     libcerror_error_t **error )