/// <summary>
/// Constructor expecting DataBlockSize.
/// </summary>
/// <param name="dataBlockSize"></param>
public DataBlock(DataBlockSize dataBlockSize)
{
if ((int)dataBlockSize > 0)
{
Data = new byte[(int)dataBlockSize - OverheadSize];
}
}
/// <summary>
/// Constructor expecting DataBlockSize.
/// </summary>
/// <param name="dataBlockSize"></param>
public DataBlock(DataBlockSize dataBlockSize, List<Info> metaBlocks = null)
{
if ((int)dataBlockSize > 0)
Data = new byte[(int)dataBlockSize - OverheadSize];
if (metaBlocks != null)
{
foldedDataAddresses = metaBlocks.ToArray();
contiguousBlockCount = metaBlocks[0].BlockCount;
}
}
/// <summary>
/// Create a block of Data
/// </summary>
/// <param name="blockSize"></param>
/// <returns></returns>
public Sop.DataBlock CreateBlock(DataBlockSize blockSize)
{
Sop.DataBlock db = null;
if (BlockRecycler != null)
{
db = BlockRecycler.GetRecycledObject();
}
if (db == null)
{
db = new Sop.DataBlock(blockSize);
}
return(db);
}
public void PreAllocateBlocks(DataBlockSize size)
{
if (!Enabled)
{
return;
}
int c = (int)(Capacity * .2);
if (c < 10)
{
c = 10;
}
for (int i = 0; i < c; i++)
{
DataBlock d = new DataBlock(size);
d.Orphaned = true;
Recycle(d);
}
}
public LinkedItemOnDisk(DataBlockSize dataBlockSize)
: base(dataBlockSize)
{
DiskBuffer = new Sop.DataBlock(dataBlockSize);
}
/// <summary>
/// Constructor expecting DataBlockSize
/// </summary>
/// <param name="dataBlockSize"></param>
public HeaderData(DataBlockSize dataBlockSize)
{
this.diskBuffer = new Sop.DataBlock(dataBlockSize);
}
/// <summary>
/// Constructor expecting block size and Data to be persisted to disk
/// </summary>
/// <param name="dataBlockSize"></param>
/// <param name="data"></param>
public ItemOnDisk(DataBlockSize dataBlockSize, object data)
: base(dataBlockSize)
{
Data = data;
}
/// <summary>
/// Constructor expecting block size
/// </summary>
/// <param name="dataBlockSize"></param>
public ItemOnDisk(DataBlockSize dataBlockSize) : this(dataBlockSize, null)
{
}
public BTreeItemOnDisk(DataBlockSize dataBlockSize, object key, object value)
{
Key = key;
Value = new ItemOnDisk(dataBlockSize, value);
}
internal Sop.DataBlock CreateBlock(DataBlockSize size)
{
return(DataBlockDriver.CreateBlock(size));
}
/// <summary>
/// Initialize InternalPersistent Object's DiskBuffer.
/// </summary>
/// <param name="dataBlockSize">Data Block of 'DataBlockSize' will be created and assigned as DiskBuffer</param>
protected InternalPersistent(DataBlockSize dataBlockSize)
{
this.DataBlockSize = dataBlockSize;
//this.DiskBuffer = new Sop.DataBlock(DataBlockSize);
}
