IAppSession CreateNewSession(Socket listenSocket, IPEndPoint remoteEndPoint, string sessionID)
{
if (!DetectConnectionNumber(remoteEndPoint))
{
return(null);
}
var socketSession = new UdpSocketSession(listenSocket, remoteEndPoint, sessionID);
var appSession = AppServer.CreateAppSession(socketSession);
if (appSession == null)
{
return(null);
}
if (!DetectConnectionNumber(remoteEndPoint))
{
return(null);
}
if (!AppServer.RegisterSession(appSession))
{
return(null);
}
Interlocked.Increment(ref m_ConnectionCount);
socketSession.Closed += OnSocketSessionClosed;
socketSession.Start();
return(appSession);
}
void ProcessPackageWithoutSessionID(Socket listenSocket, IPEndPoint remoteEndPoint, byte[] receivedData)
{
var sessionID = remoteEndPoint.ToString();
var appSession = AppServer.GetAppSessionByID(sessionID);
if (appSession == null) //New session
{
if (!DetectConnectionNumber(remoteEndPoint))
return;
var socketSession = new UdpSocketSession(listenSocket, remoteEndPoint, sessionID);
appSession = AppServer.CreateAppSession(socketSession);
if (appSession == null)
return;
Interlocked.Increment(ref m_ConnectionCount);
socketSession.Closed += OnSocketSessionClosed;
socketSession.Start();
appSession.ProcessRequest(receivedData, 0, receivedData.Length, false);
}
else //Existing session
{
appSession.ProcessRequest(receivedData, 0, receivedData.Length, false);
}
}
void ProcessPackageWithoutSessionID(Socket listenSocket, IPEndPoint remoteEndPoint, ArraySegment <byte> receivedData)
{
var sessionID = remoteEndPoint.ToString();
var appSession = AppServer.GetSessionByID(sessionID);
if (appSession == null) //New session
{
if (!DetectConnectionNumber(remoteEndPoint))
{
return;
}
var socketSession = new UdpSocketSession(listenSocket, remoteEndPoint, sessionID);
appSession = AppServer.CreateAppSession(socketSession);
if (appSession == null)
{
return;
}
if (!DetectConnectionNumber(remoteEndPoint))
{
return;
}
if (!AppServer.RegisterSession(appSession))
{
return;
}
Interlocked.Increment(ref m_ConnectionCount);
socketSession.Closed += OnSocketSessionClosed;
socketSession.Start();
}
((UdpSocketSession)appSession.SocketSession).ProcessReceivedData(receivedData, null);
}
void ProcessPackageWithSessionID(Socket listenSocket, IPEndPoint remoteEndPoint, ArraySegment <byte> receivedData)
{
TPackageInfo requestInfo;
string sessionID;
int rest;
try
{
var receiveData = new BufferList();
receiveData.Add(receivedData);
requestInfo = this.m_UdpRequestFilter.Filter(receiveData, out rest);
}
catch (Exception exc)
{
if (AppServer.Logger.IsErrorEnabled)
{
AppServer.Logger.Error("Failed to parse UDP package!", exc);
}
return;
}
var udpRequestInfo = requestInfo as IUdpPackageInfo;
if (rest > 0)
{
if (AppServer.Logger.IsErrorEnabled)
{
AppServer.Logger.Error("The output parameter rest must be zero in this case!");
}
return;
}
if (udpRequestInfo == null)
{
if (AppServer.Logger.IsErrorEnabled)
{
AppServer.Logger.Error("Invalid UDP package format!");
}
return;
}
if (string.IsNullOrEmpty(udpRequestInfo.SessionID))
{
if (AppServer.Logger.IsErrorEnabled)
{
AppServer.Logger.Error("Failed to get session key from UDP package!");
}
return;
}
sessionID = udpRequestInfo.SessionID;
var appSession = AppServer.GetSessionByID(sessionID);
if (appSession == null)
{
if (!DetectConnectionNumber(remoteEndPoint))
{
return;
}
var socketSession = new UdpSocketSession(listenSocket, remoteEndPoint, sessionID);
appSession = AppServer.CreateAppSession(socketSession);
if (appSession == null)
{
return;
}
if (!DetectConnectionNumber(remoteEndPoint))
{
return;
}
if (!AppServer.RegisterSession(appSession))
{
return;
}
Interlocked.Increment(ref m_ConnectionCount);
socketSession.Closed += OnSocketSessionClosed;
socketSession.Start();
}
else
{
var socketSession = appSession.SocketSession as UdpSocketSession;
//Client remote endpoint may change, so update session to ensure the server can find client correctly
socketSession.UpdateRemoteEndPoint(remoteEndPoint);
}
m_RequestHandler.ExecuteCommand(appSession, requestInfo);
}