/// <SUMMARY>
/// Callback function: A new connection is waiting.
/// </SUMMARY>
private void ConnectionReady_Handler(IAsyncResult ar)
{
lock (this)
{
if (m_listener == null)
{
return;
}
Socket conn = m_listener.EndAccept(ar);
if (m_connections.Count >= _maxConnections)
{
//Max number of connections reached.
conn.Shutdown(SocketShutdown.Both);
conn.Dispose();
conn = null;
}
else
{
//Start servicing a new connection
ConnectionState st = new ConnectionState();
st.m_conn = conn;
st.m_server = this;
st.m_provider = (TcpServiceProvider)m_provider.Clone();
st.m_buffer = new byte[4];
m_connections.Add(st);
//Queue the rest of the job to be executed latter
ThreadPool.QueueUserWorkItem(AcceptConnection, st);
}
//Resume the listening callback loop
m_listener.BeginAccept(ConnectionReady, null);
}
}
/// <SUMMARY>
/// Callback function: A new connection is waiting.
/// </SUMMARY>
private void ConnectionReady_Handler(IAsyncResult ar)
{
lock (this)
{
if (_listener == null)
{
return;
}
Socket conn = _listener.EndAccept(ar);
if (_connections.Count >= _maxConnections)
{
//Max number of connections reached.
string msg = "TLDCS_ERROR: 001 Server busy";
conn.Send(Encoding.UTF8.GetBytes(msg), 0, msg.Length, SocketFlags.None);
conn.Shutdown(SocketShutdown.Both);
conn.Close();
}
else
{
//Start servicing a new connection
ConnectionState st = new ConnectionState();
st._conn = conn;
st._server = this;
st._provider = (TcpServiceProvider)_provider.Clone();
st._buffer = new byte[4];
_connections.Add(st);
//Queue the rest of the job to be executed latter
ThreadPool.QueueUserWorkItem(AcceptConnection, st);
}
//Resume the listening callback loop
_listener.BeginAccept(ConnectionReady, null);
}
}
private void Server_ClientConnected(object sender, System.Net.Sockets.TcpClient e)
{
try
{
// ConnectionReady_Handler
var st = new ConnectionState();
st.m_conn = e;
st.m_server = this;
st.m_provider = (TcpServiceProvider)serviceProvider.Clone();
st.m_buffer = new byte[4];
//AcceptConnection_Handler
st.m_provider.OnAcceptConnection(st);
connectionState = st;
LogExt.log.Debug($"SimpleTCP, Connected, Client:{e.Client.AddressFamily}");
}
catch (Exception ex)
{
LogExt.log.Error(nameof(Server_ClientConnected), ex);
//report error in provider... Probably to the EventLog
}
}