/// <summary>
/// Checks to see how much data has arrived. If there is no data, the connection is closed.
/// If greater than zero, this method gets the SocketState object out of the IAsyncResult and the
/// callMe function.
/// </summary>
/// <param name="stateAsArObject"></param>
private static void ReceiveCallback(IAsyncResult stateAsArObject)
{
SocketState ss = (SocketState)stateAsArObject.AsyncState;
try
{
int bytesRead = ss.theSocket.EndReceive(stateAsArObject);
// If the socket is still open
if (bytesRead > 0)
{
string theMessage = Encoding.UTF8.GetString(ss.messageBuffer, 0, bytesRead);
// Append the received data to the growable buffer.
// It may be an incomplete message, so we need to start building it up piece by piece
ss.sb.Append(theMessage);
ss.callMe(ss);
}
}
catch (SocketException e)
{
Console.WriteLine("Client disconnected.");
}
}
/// <summary>
/// Calls the callMe function once a connection with the server is established
/// </summary>
/// <param name="stateAsArObject"></param>
private static void ConnectedCallback(IAsyncResult stateAsArObject)
{
SocketState ss = (SocketState)stateAsArObject.AsyncState;
try
{
// Complete the connection.
ss.theSocket.EndConnect(stateAsArObject);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Unable to connect to server. Error occured: " + e);
return;
}
// Start an event loop to receive data from the server.
ss.callMe(ss);
}
