internal static int SizeOfMetaData(IInternalPersistent parent)
{
if (parent == null)
{
throw new ArgumentNullException("parent");
}
if (!(parent is CollectionOnDisk))
{
throw new ArgumentException("Parent is not CollectionOnDisk type.");
}
if (Encoding != ((CollectionOnDisk)parent).File.Server.Encoding)
{
Encoding = ((CollectionOnDisk)parent).File.Server.Encoding;
_sizeOf = 0;
}
if (_sizeOf == 0)
{
var o = new LinkedItemOnDisk
{
DiskBuffer = ((CollectionOnDisk)parent).DataBlockDriver.
CreateBlock(((CollectionOnDisk)parent).File.DataBlockSize),
Data = new byte[0]
};
var w = new OnDiskBinaryWriter(Encoding)
{
DataBlock = o.DiskBuffer
};
WritePersistentData(parent, o, w);
_sizeOf = (int)w.BaseStream.Position;
w.Close();
}
return(_sizeOf);
}
/// <summary>
/// protected virtual dispose.
/// Closes this Collection on disk, its deleted blocks and Mru Segments.
/// Sets the data block driver to null.
/// </summary>
protected internal virtual void InternalDispose()
{
if (FileStream != null)
{
Close();
}
if (deletedBlocks != null)
{
deletedBlocks.Dispose();
deletedBlocks = null;
}
Parent = null;
if (DataBlockDriver != null)
{
if (!IsCloned)
{
DataBlockDriver.Dispose();
}
DataBlockDriver = null;
}
if (OnDiskBinaryReader != null)
{
OnDiskBinaryReader.Close();
OnDiskBinaryReader = null;
}
if (OnDiskBinaryWriter != null)
{
OnDiskBinaryWriter.Close();
OnDiskBinaryWriter = null;
}
_instanceTransaction = null;
_parentTransactionLogger = null;
File = null;
}
/// <summary>
/// protected virtual dispose.
/// Closes this Collection on disk, its deleted blocks and Mru Segments.
/// Sets the data block driver to null.
/// </summary>
protected internal virtual void InternalDispose()
{
// note: SOP's Dispose pattern is created to provide way to do early
// garbage collection of the "graph" objects, simply. Not for freeing up unmanaged
// resources, thus, no finalizer/SafeHandle "patterns". All members are "virtualized"
// objects and they have custom Dispose for the same.
if (isDisposed)
{
return;
}
isDisposed = true;
// FileStream is a wrapper, not the .Net FileStream.
if (FileStream != null)
{
Close();
}
if (deletedBlocks != null)
{
deletedBlocks.Dispose();
deletedBlocks = null;
}
Parent = null;
if (DataBlockDriver != null)
{
//if (!IsCloned)
DataBlockDriver.Dispose();
DataBlockDriver = null;
}
if (OnDiskBinaryReader != null)
{
OnDiskBinaryReader.Close();
OnDiskBinaryReader = null;
}
if (OnDiskBinaryWriter != null)
{
OnDiskBinaryWriter.Close();
OnDiskBinaryWriter = null;
}
_instanceTransaction = null;
_parentTransactionLogger = null;
File = null;
Blocks = null;
var locker = _syncRoot as IDisposable;
if (locker != null)
{
locker.Dispose();
}
}
public override void Close()
{
if (!IsOpen)
{
return;
}
base.Close();
if (OnDiskBinaryWriter != null)
{
OnDiskBinaryWriter.Close();
OnDiskBinaryWriter = null;
}
if (OnDiskBinaryReader != null)
{
OnDiskBinaryReader.Close();
OnDiskBinaryReader = null;
}
FirstItem = new LinkedItemOnDisk(File.DataBlockSize);
this.CurrentItem = FirstItem;
LastItem = new LinkedItemOnDisk(File.DataBlockSize);
}
/// <summary>
/// Close the Collection
/// </summary>
public virtual void Close()
{
bool miscCollsClosed = false;
if (IsOpen)
{
if (!IsCloned)
{
OnCommit();
}
if (IsDirty && !IsCloned && DataAddress >= 0 && Count > 0)
{
Flush();
}
if (deletedBlocks != null)
{
deletedBlocks.Close();
}
miscCollsClosed = true;
if (DataBlockDriver != null)
{
if (!IsCloned)
{
//DataBlocksPool.RemoveFromPool(this.DataBlockDriver.MruManager);
//this.DataBlockDriver.MruManager.Clear();
DataBlockDriver.HeaderData.Clear();
}
}
if (Parent == null)
{
if (OnDiskBinaryWriter != null)
{
OnDiskBinaryWriter.Close();
OnDiskBinaryWriter = null;
}
if (OnDiskBinaryReader != null)
{
OnDiskBinaryReader.Close();
OnDiskBinaryReader = null;
}
}
if (Blocks != null)
{
Blocks.Clear();
}
currentDataBlock = null;
currentEntry = null;
_currentEntryDataAddress = -1;
isOpen = false;
}
if (_fileStream != null)
{
_fileStream.Close();
_fileStream = null;
}
if (!miscCollsClosed)
{
if (deletedBlocks != null)
{
deletedBlocks.Close();
}
}
if (_isUnloading)
{
_isUnloading = false;
}
long da = DiskBuffer.DataAddress;
DiskBuffer.Initialize();
DiskBuffer.DataAddress = da;
}
