public State(SessionTable sessionTable, NetworkStream socketNetworkStream, StreamReader socketReader, StreamWriter socketWriter)
{
this.sessionTable = sessionTable;
this.socketNetworkStream = socketNetworkStream;
this.socketReader = socketReader;
this.socketWriter = socketWriter;
}
public ClientThread(Socket clientSocket, SessionTable sessionTable)
{
this.clientSocket = clientSocket;
this.sessionTable = sessionTable;
session = null;
currentState = null;
theThread = new Thread(new ParameterizedThreadStart(ClientThreadFunc));
}
public SDServer(ushort listeningPort, int clientBacklog)
{
this.listeningPort = listeningPort;
this.clientBacklog = clientBacklog;
// initially empty session table
sessionTable = new SessionTable();
}
public ClientThread(Socket clientSocket, SessionTable sessionTable)
{
socketNetworkStream = new NetworkStream(clientSocket);
socketReader = new StreamReader(socketNetworkStream);
socketWriter = new StreamWriter(socketNetworkStream);
this.clientSocket = clientSocket;
this.sessionTable = sessionTable;
session = null;
currentState = null;
theThread = new Thread(new ParameterizedThreadStart(ClientThreadFunc));
}
static void Main(string[] args)
{
// process cmd line
// -prs <PRS IP address>:<PRS port>
// create the session table
SessionTable sessionTable = new SessionTable();
// get the listening port from the PRS for the "SD Server" service
string serviceName = "SD Server";
string prsIP = "127.0.0.1";
ushort prsPort = 30000;
PRSServiceClient.prsAddress = IPAddress.Parse(prsIP);
PRSServiceClient.prsPort = prsPort;
PRSServiceClient prs = new PRSServiceClient(serviceName);
ushort listeningPort = prs.RequestPort();
// create the TCP listening socket
Socket listeningSocket = new Socket(SocketType.Stream, ProtocolType.Tcp);
listeningSocket.Bind(new IPEndPoint(IPAddress.Any, listeningPort));
listeningSocket.Listen(42); // 42 is the number of clients that can be waiting for us to accept their connection
Console.WriteLine("Listening for clients on port " + listeningPort.ToString());
bool done = false;
while (!done)
{
// wait for a client to connect
Console.WriteLine("Ready to accept new client");
Socket clientSocket = listeningSocket.Accept();
Console.WriteLine("Accepted connection from client");
// create a thread for this client, and then return to listening for more clients
Console.WriteLine("Launch new thread for connected client");
ClientThread clientThread = new ClientThread(clientSocket, sessionTable);
clientThread.Start();
}
// close down the listening socket
Console.WriteLine("Closing listening socket");
listeningSocket.Close();
// close the listening port that I received from the PRS
prs.ClosePort();
}
private ulong sessionId; // session id for this session, once opened or resumed
public SDConnectedClient(Socket clientSocket, SessionTable sessionTable)
{
// save the client's socket
this.clientSocket = clientSocket;
// at this time, there is no stream, reader, write or thread
reader = null;
writer = null;
stream = null;
clientThread = null;
// save the server's session table
this.sessionTable = sessionTable;
// at this time, there is no session open
sessionId = 0;
}
static void Main(string[] args)
{
// process cmd line
// -prs <PRS IP address>:<PRS port>
try
{
for (int i = 0; i < args.Length; i++)
{
if (args[i] == "-prs")// -prs prsip:prsport
{
if (i++ < args.Length)
{
string[] parts = args[i].Split(':');
if (parts.Length != 2)
{
throw new Exception("Invalid PRSIP:PRSAddress format");
}
PRS_ADDRESS = parts[1];
PRS_PORT = System.Convert.ToUInt16(parts[0]);
}
else
{
throw new Exception("No value for -prs option");
}
}
else
{
throw new Exception("Invalid cmdline parameter");
}
}
}catch (Exception ex)
{
Console.WriteLine("Error processing command line:" + ex);
return;
}
// create the session table
SessionTable sessionTable = new SessionTable();
Console.WriteLine("PRS ADDRESS:" + PRS_ADDRESS);
Console.WriteLine("PRS PORT:" + PRS_PORT);
// get the listening port from the PRS for the "SD Server" service
PRSClient PRS = new PRSClient(IPAddress.Parse(PRS_ADDRESS), PRS_PORT, SERVICE_NAME);
ushort listeningPort = PRS.RequestPort();
// create the TCP listening socket
Socket listeningSocket = new Socket(SocketType.Stream, ProtocolType.Tcp);
listeningSocket.Bind(new IPEndPoint(IPAddress.Any, listeningPort));
listeningSocket.Listen(CLIENT_BACKLOG); // 42 is the number of clients that can be waiting for us to accept their connection
Console.WriteLine("Listening for clients on port " + listeningPort.ToString());
bool done = false;
while (!done)
{
// wait for a client to connect
Console.WriteLine("Ready to accept new client");
Socket clientSocket = listeningSocket.Accept();
Console.WriteLine("Accepted connection from client");
// create a thread for this client, and then return to listening for more clients
Console.WriteLine("Launch new thread for connected client");
ClientThread clientThread = new ClientThread(clientSocket, sessionTable);
clientThread.Start();
}
// close down the listening socket
Console.WriteLine("Closing listening socket");
listeningSocket.Close();
// close the listening port that I received from the PRS
PRS.ClosePort();
}
public ReadyForSessionCmd(SessionTable sessionTable, NetworkStream socketNetworkStream, StreamReader socketReader, StreamWriter socketWriter) :
base(sessionTable, socketNetworkStream, socketReader, socketWriter)
{
}