/// <summary>
/// Retrieves the path of the given storage slot.
/// A storage slot is a subdirectory of the storage root,
/// containing a specific version of disk image.
/// </summary>
/// <param name="isPrimary">Whether to use primary slot or secondary slot.</param>
/// <returns></returns>
public unsafe string GetStorageSlot(bool isPrimary)
{
char * buf = CLocalMemoryStorage.CGetStorageSlot(isPrimary ? 1 : 0);
string ret = new string(buf);
Memory.free(buf);
return(ret);
}