/// <summary>
/// Initializes a new instance of the <see cref="VirtualFileSystem"/> class.
/// Create new file system.
/// </summary>
internal VirtualFileSystem([NotNull] IDirectDiskAccess diskAccess, ulong newVolumeSize)
{
Validate.ArgumentNotNull(diskAccess, "diskAccess");
_diskAccess = diskAccess;
_record = MasterRecord.CreateNewVolume(diskAccess, newVolumeSize);
_record.Save();
}
/// <summary>
/// Initializes a new instance of the <see cref="VirtualFileSystem"/> class.
/// Load existing file system.
/// </summary>
internal VirtualFileSystem([NotNull] IDirectDiskAccess diskAccess)
{
Validate.ArgumentNotNull(diskAccess, "diskAccess");
_diskAccess = diskAccess;
_record = new MasterRecord(diskAccess);
_record.Load();
}
private ulong _size; // will mean file size, bytes for file node, and number of entries for directory node.
#endregion Fields
#region Constructors
/// <summary>
/// Initializes a new instance of the <see cref="Node"/> class.
/// </summary>
/// <param name="blockAllocator">The block allocator.</param>
/// <param name="diskAccess">The disk access.</param>
/// <param name="address">The address.</param>
/// <param name="globalBlockStartAddress">The global block start address.</param>
public Node(
[NotNull] IBlockAllocator blockAllocator,
[NotNull] IDirectDiskAccess diskAccess,
[NotNull] Address address,
[NotNull] Address globalBlockStartAddress)
{
Validate.ArgumentNotNull(blockAllocator, "blockAllocator");
Validate.ArgumentNotNull(diskAccess, "diskAccess");
Validate.ArgumentNotNull(address, "address");
Validate.ArgumentNotNull(globalBlockStartAddress, "globalBlockStartAddress");
_address = address;
DiskAccess = diskAccess;
Storage = new BlockAddressStorage(
diskAccess, blockAllocator, new Address(_address.Value + 25), globalBlockStartAddress);
}
/// <summary>
/// Initializes a new instance of the <see cref="BlockAddressStorage"/> class.
/// </summary>
/// <param name="diskAccess">The disk access interface.</param>
/// <param name="allocator">The allocator interface.</param>
/// <param name="storageAddress">The current instance start address in disk storage.</param>
/// <param name="globalBlocksStartAddress">The global blocks start address, used to calculate offsets and block indexes.</param>
public BlockAddressStorage(
[NotNull] IDirectDiskAccess diskAccess,
[NotNull] IBlockAllocator allocator,
[NotNull] Address storageAddress,
[NotNull] Address globalBlocksStartAddress)
{
Validate.ArgumentNotNull(diskAccess, "diskAccess");
Validate.ArgumentNotNull(allocator, "allocator");
Validate.ArgumentNotNull(storageAddress, "storageAddress");
Validate.ArgumentNotNull(globalBlocksStartAddress, "globalBlocksStartAddress");
_address = storageAddress;
_diskAccess = diskAccess;
_allocator = allocator;
_globalBlocksStartAddress = globalBlocksStartAddress;
}
/// <summary>
/// Initializes a new instance of the <see cref="MasterRecord"/> class.
/// </summary>
/// <param name="diskAccess">The disk access interface.</param>
public MasterRecord([NotNull] IDirectDiskAccess diskAccess)
{
Validate.ArgumentNotNull(diskAccess, "diskAccess");
_diskAccess = diskAccess;
}
/// <summary>
/// Initializes a new instance of the <see cref="SparseWriter"/> class.
/// </summary>
/// <param name="diskAccess">The direct disk access interface.</param>
public SparseWriter([NotNull] IDirectDiskAccess diskAccess)
{
Validate.ArgumentNotNull(diskAccess, "diskAccess");
_diskAccess = diskAccess;
}