protected virtual void Listen()
{
try
{
m_listener = m_listenerFactory.Create(IPAddress.Any, m_portNumber);
m_listener.Start();
Debug.WriteLine($"Listening on port:{m_portNumber}");
while (m_listenContinue)
{
if (m_listener.Pending())
{
lock (m_connections.SyncRoot)
{
if (m_connections.Count < m_maxConnections)
{
// blocking call...
ITcpConnection conn = null;
try
{
conn = m_tcpConnectionFactory.Create(m_listener.Accept());
conn.Begin();
conn.IdleTimeout += conn_IdleTimeout;
m_connections.Add(conn);
Debug.WriteLine($"Client connection: {IPAddress.Parse(((IPEndPoint)conn.Client.Socket.RemoteEndPoint).Address.ToString())}");
}
catch (Exception ex)
{
Debug.WriteLine($"Exception caught on ITcpConnection Begin(): {ex}");
if (ex.InnerException != null)
{
Debug.WriteLine($"Inner Exception: {ex.InnerException}");
}
if (conn != null)
{
CleanupConnection(conn);
}
}
}
else
{
Debug.WriteLine("Max Server Connections Reached.");
using (var client = m_listener.AcceptTcpClient())
{
using (var writer = new StreamWriter(client.GetStream()))
{
writer.Write("Unable to connect. Max server connections reached.");
writer.Flush();
}
}
}
}
}
else
{
Thread.Sleep(100);
}
}
}
catch (Exception ex)
{
Trace.WriteLine(ex);
Debug.WriteLine("Server::ShutdownServer() called");
ShutdownServer();
Debug.WriteLine("Server::StartupServer() called");
StartupServer();
}
}