protected void doReceive()
{
while (!stopped)
{
try{
try{
//will block until a packet is received or timeout has expired
IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
EndPoint Remote = (EndPoint)sender;
//dgSocket.Bind(_ipep);
dgSocket.ReceiveFrom(dp, ref Remote);
Remoteinfo = (IPEndPoint)Remote;
Destination peer = new Destination(Remoteinfo.Address, Remoteinfo.Port);
int l = dp.Length;
UDTPacket packet = PacketFactory.createPacket(dp, l);
lastPacket = packet;
//handle connection handshake
if (packet.isConnectionHandshake())
{
lock (thisLock)
{
long id = packet.getDestinationID();
UDTSession session;
sessions.TryGetValue(id, out session);
if (session == null)
{
session = new ServerSession(dp, this);
addSession(session.getSocketID(), session);
//TODO need to check peer to avoid duplicate server session
if (serverSocketMode)
{
Log.Write(this.ToString(), "Pooling new request.");
sessionHandoff.Enqueue(session);
Log.Write(this.ToString(), "Request taken for processing.");
}
}
peer.setSocketID(((ConnectionHandshake)packet).getSocketID());
session.received(packet, peer);
}
}
else
{
//dispatch to existing session
long dest = packet.getDestinationID();
UDTSession session;
if (dest == lastDestID)
{
session = lastSession;
}
else
{
sessions.TryGetValue(dest, out session);
lastSession = session;
lastDestID = dest;
}
if (session == null)
{
n++;
if (n % 100 == 1)
{
Log.Write(this.ToString(), "Unknown session <" + dest + "> requested from <" + peer + "> packet type " + packet.ToString());
}
}
else
{
session.received(packet, peer);
}
}
}
catch (SocketException ex)
{
Log.Write(this.ToString(), "INFO", ex);
}
}catch (Exception ex) {
Log.Write(this.ToString(), "WARNING", ex);
}
}
}
/// <summary>
/// 处理接收的数据
/// </summary>
/// <param name="dp"></param>
/// <param name="_remoteIP"></param>
private void ReceiveData(byte[] dp, IPEndPoint _remoteIP)
{
try
{
Destination peer = new Destination(_remoteIP.Address, _remoteIP.Port);
int l = dp.Length;
UDTPacket packet = PacketFactory.createPacket(dp, l);
lastPacket = packet;
//handle connection handshake 处理连接握手
if (packet.isConnectionHandshake())
{
lock (thisLock)
{
long id = packet.getDestinationID();
UDTSession session;
sessions.TryGetValue(id, out session);//ClientSession 或是 ServerSession
if (session == null)
{
session = new ServerSession(dp, this);
addSession(session.getSocketID(), session);
//TODO need to check peer to avoid duplicate server session
if (serverSocketMode)
{
sessionHandoff.Enqueue(session);
Log.Write(this.ToString(), "Pooling new request, request taken for processing.");
}
}
try
{
peer.setSocketID(((ConnectionHandshake)packet).getSocketID());
session.received(packet, peer);//ClientSession 或是 ServerSession
}
catch (Exception ex)
{
Log.Write(this.ToString(), "WARNING", ex);
}
}
}
else
{
//dispatch to existing session
long dest = packet.getDestinationID();
UDTSession session;
if (dest == lastDestID)
{
session = lastSession;
}
else
{
sessions.TryGetValue(dest, out session);
lastSession = session;
lastDestID = dest;
}
if (session == null)
{
n++;
if (n % 100 == 1)
{
Log.Write(this.ToString(), "Unknown session <" + dest + "> requested from <" + peer + "> packet type " + packet.ToString());
}
}
else
{
session.received(packet, peer);
}
}
}
catch (SocketException ex)
{
Log.Write(this.ToString(), "INFO", ex);
}
}