/**
* This method handles receiving name data from the client and printing that name, only called once upon a client connecting.
*/
private void RecieveNameCallback(IAsyncResult ar)
{
var current = (Socket)ar.AsyncState;
var received = 0;
try
{
received = current.EndReceive(ar);
if (received == 0)
{
return;
}
// Creating a new client from the data received from the client, the client class has an overloaded constructor that takes a byte array and converts that data.
client = new Client(mReceivedData);
mClients.Add(client);
var line = "";
line = client.Name + " has entered the room";
AppFunctions.AppendTextBox(line, receivedTxt);
foreach (Socket client in mClientSockets)
{
AppFunctions.SendText(line, client, mSendData);
}
// Ensure received data array is cleared for the next piece of data.
Array.Clear(mReceivedData, 0, mReceivedData.Length);
}
catch (SocketException) { }
}
/**
* Method for handling all text sent from a client.
* */
private void RecieveCallback(IAsyncResult ar)
{
var current = (Socket)ar.AsyncState;
var received = 0;
var currentIndex = 0;
currentIndex = UpdateIndex(current);
try
{
received = current.EndReceive(ar);
if (received == 0)
{
return;
}
// Parsing the data sent, need to trim the end of any null characters.
var text = "";
text = Encoding.ASCII.GetString(mReceivedData, mReceivedData[received], mReceivedData.Length).TrimEnd('\0');
// Handles closing the socket when the client clicks the exit button.
if (text == "/exit")
{
var line = "";
line = mClients[currentIndex].Name + " has left the room";
AppFunctions.AppendTextBox(line, receivedTxt);
foreach (Socket client in mClientSockets)
{
AppFunctions.SendText(line, client, mSendData);
}
// Remove client from the client list and the curent socket from the socket list, clear the received data array so that other people can still send data.
mClientSockets.Remove(current);
mClients.Remove(mClients[currentIndex]);
Array.Clear(mReceivedData, 0, mReceivedData.Length);
}
else
{
var line = "";
line = mClients[currentIndex].Name + " says: " + text;
AppFunctions.AppendTextBox(line, receivedTxt);
// Send the received data to all clients.
foreach (Socket client in mClientSockets)
{
AppFunctions.SendText(line, client, mSendData);
}
// Clear the data array for the next piece of incoming data.
Array.Clear(mReceivedData, 0, mReceivedData.Length);
current.BeginReceive(mReceivedData, 0, mReceivedData.Length, SocketFlags.None, new AsyncCallback(RecieveCallback), current);
}
}
catch (SocketException) { }
}