public void WriteLength(RdmBinaryWriter data)
{
if (messageLengthPosition < 0 || dataLengthPosition <= 0)
{
throw new InvalidOperationException("Packet data has not been written yet. You can not write the length until the body is written.");
}
MessageLength = (byte)(data.BaseStream.Position - messageLengthPosition + 2);
ParameterDataLength = (byte)((data.BaseStream.Position - 1) - dataLengthPosition);
//Write Message Length
data.BaseStream.Seek(messageLengthPosition, System.IO.SeekOrigin.Begin);
data.Write(MessageLength);
//Write Parameter Data Length
data.BaseStream.Seek(dataLengthPosition, System.IO.SeekOrigin.Begin);
data.Write(ParameterDataLength);
//Move back to end of stream.
data.BaseStream.Seek(0, System.IO.SeekOrigin.End);
}
public void WriteData(RdmBinaryWriter data)
{
//Save position so we can write length later.
messageLengthPosition = data.BaseStream.Position;
data.Write(MessageLength);
data.Write(DestinationId);
data.Write(SourceId);
data.Write(TransactionNumber);
data.Write(PortOrResponseType);
data.Write(MessageCount);
data.WriteNetwork(SubDevice);
data.Write((byte)Command);
data.WriteNetwork((short)ParameterId);
//Save position so we can write length later.
dataLengthPosition = data.BaseStream.Position;
data.Write(ParameterDataLength);
}
