/// <summary>
/// Gets the length of the write data when WriteTo will be called.
/// </summary>
/// <returns>The length of data witten by the call to GetWriteLength</returns>
public virtual int GetWriteLength()
{
int headerLength = 0;
var enc = new MqttEncoding();
if ((WriteFlags & ReadWriteFlags.ProtocolName) == ReadWriteFlags.ProtocolName)
{
headerLength += enc.GetByteCount(ProtocolName);
}
if ((WriteFlags & ReadWriteFlags.ProtocolVersion) == ReadWriteFlags.ProtocolVersion)
{
headerLength += sizeof(byte);
}
if ((WriteFlags & ReadWriteFlags.ConnectFlags) == ReadWriteFlags.ConnectFlags)
{
headerLength += MqttConnectFlags.GetWriteLength();
}
if ((WriteFlags & ReadWriteFlags.KeepAlive) == ReadWriteFlags.KeepAlive)
{
headerLength += sizeof(short);
}
if ((WriteFlags & ReadWriteFlags.ReturnCode) == ReadWriteFlags.ReturnCode)
{
headerLength += sizeof(byte);
}
if ((WriteFlags & ReadWriteFlags.TopicName) == ReadWriteFlags.TopicName)
{
headerLength += enc.GetByteCount(TopicName.ToString());
}
if ((WriteFlags & ReadWriteFlags.MessageIdentifier) == ReadWriteFlags.MessageIdentifier)
{
headerLength += sizeof(short);
}
return(headerLength);
}
protected void ReadConnectFlags(Stream stream)
{
ConnectFlags = new MqttConnectFlags(stream);
length += 1;
}