public byte[] GetChunk(uint physicalPosition, VariableRange chunkParameter)
{
if (_positionBlock == null)
{
throw new InvalidOperationException();
}
int recieveLength = chunkParameter.Length;
var sendLength = 12 + (Resource.Is64bit ? 16 : 12);
if (recieveLength > 0xfc00)
{
throw new ArgumentException();
}
var dataBufferLength = sendLength > recieveLength ? (ushort)sendLength : (ushort)recieveLength;
var position = 0;
Array.Copy(BitConverter.GetBytes(physicalPosition), 0, this.TemporaryBuffer, position, 4);
position += 4;
Array.Copy(BitConverter.GetBytes(0x80000000), 0, this.TemporaryBuffer, position, 4);
position += 4;
Array.Copy(BitConverter.GetBytes(1), 0, this.TemporaryBuffer, position, 4);
position += 4;
Array.Copy(BitConverter.GetBytes(chunkParameter.Position), 0, this.TemporaryBuffer, position, 4);
position += 4;
Array.Copy(BitConverter.GetBytes(chunkParameter.Length), 0, this.TemporaryBuffer, position, 4);
position += 4;
if (Resource.Is64bit)
{
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
}
else
{
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
this.TemporaryBuffer[position++] = 0;
}
_nativeOperator.UpdateChunk(_positionBlock, this.TemporaryBuffer, ref dataBufferLength, null, -2);
var result = new byte[chunkParameter.Length];
Array.Copy(this.TemporaryBuffer, 0, result, 0, chunkParameter.Length);
return(result);
}
public UpdateChunkParameter(VariableRange range, byte[] data, int dataPosition = 0)
{
if (data == null)
{
throw new ArgumentNullException();
}
if (dataPosition < 0 || data.Length < range.Length)
{
throw new ArgumentOutOfRangeException();
}
this.Range = range;
this.Data = data;
this.DataPosition = dataPosition;
}
