/**
* handle the connection handshake:<br/>
* <ul>
* <li>set initial sequence number</li>
* <li>send response handshake</li>
* </ul>
* @param handshake
* @param peer
* @throws IOException
*/
protected void handleHandShake(ConnectionHandshake handshake)
{
try
{
ConnectionHandshake responseHandshake = new ConnectionHandshake();
//compare the packet size and choose minimun
long clientBufferSize = handshake.getPacketSize();
long myBufferSize = getDatagramSize();
long bufferSize = Math.Min(clientBufferSize, myBufferSize);
long initialSequenceNumber = handshake.getInitialSeqNo();
setInitialSequenceNumber(initialSequenceNumber);
setDatagramSize((int)bufferSize);
responseHandshake.setPacketSize(bufferSize);
responseHandshake.setUdtVersion(4);
responseHandshake.setInitialSeqNo(initialSequenceNumber);
responseHandshake.setConnectionType(-1);
responseHandshake.setMaxFlowWndSize(handshake.getMaxFlowWndSize());
//tell peer what the socket ID on this side is
responseHandshake.setSocketID(mySocketID);
responseHandshake.setDestinationID(this.getDestination().getSocketID());
responseHandshake.setSession(this);
Log.Write(this.ToString(), "Sending reply " + responseHandshake);
endPoint.doSend(responseHandshake);
}
catch (Exception exc)
{
Log.Write(this.ToString(), exc);
}
}
/// <summary>
/// 2nd handshake for connect
/// </summary>
/// <param name="hs"></param>
protected void sendConfirmation(ConnectionHandshake hs)
{
try
{
ConnectionHandshake handshake = new ConnectionHandshake();
handshake.setConnectionType(-1);
handshake.setSocketType(ConnectionHandshake.SOCKET_TYPE_DGRAM);
handshake.setInitialSeqNo(hs.getInitialSeqNo());
handshake.setPacketSize(hs.getPacketSize());
handshake.setSocketID(mySocketID);
handshake.setMaxFlowWndSize(flowWindowSize);
handshake.setSession(this);
Log.Write(this.ToString(), "Sending confirmation " + handshake.toString());
endPoint.doSend(handshake);
}
catch (Exception exc)
{
Log.Write(this.ToString(), exc);
}
}
/// <summary>
/// handshake for connect
/// </summary>
protected void sendHandShake()
{
try
{
ConnectionHandshake handshake = new ConnectionHandshake();
handshake.setConnectionType(ConnectionHandshake.CONNECTION_TYPE_REGULAR);
handshake.setSocketType(ConnectionHandshake.SOCKET_TYPE_DGRAM);
long initialSequenceNo = SequenceNumber.random();
setInitialSequenceNumber(initialSequenceNo);
handshake.setInitialSeqNo(initialSequenceNo);
handshake.setPacketSize(getDatagramSize());
handshake.setSocketID(mySocketID);
handshake.setMaxFlowWndSize(flowWindowSize);
handshake.setSession(this);
Log.Write(this.ToString(), "Sending " + handshake);
endPoint.doSend(handshake);
}
catch (Exception exc)
{
Log.Write(this.ToString(), exc);
}
}