/// <summary>
/// Start this listener
/// </summary>
/// <param name="address">Address to accept connections on</param>
/// <param name="port">Port to use. Set to <c>0</c> to let the OS decide which port to use. </param>
/// <seealso cref="LocalPort" />
public virtual void Start(IPAddress address, int port)
{
if (port < 0)
{
throw new ArgumentOutOfRangeException("port", port, "Port must be 0 or more.");
}
if (_listener != null)
{
throw new InvalidOperationException("Already listening.");
}
_listener = new TcpListener(address, port);
_listener.Start();
for (int i = 0; i < 20; i++)
{
var decoder = _configuration.DecoderFactory();
var encoder = _configuration.EncoderFactory();
var channel = _channelFactory.Create(_bufferPool.Pop(), encoder, decoder);
_channels.Push(channel);
}
_listener.BeginAcceptSocket(OnSocket, null);
}
private void OnAcceptSocket(IAsyncResult ar)
{
try {
var socket = _listener.EndAcceptSocket(ar);
socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, 1);
socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Linger, new LingerOption(true, 1));
var decoder = _configuration.DecoderFactory();
var encoder = _configuration.EncoderFactory();
var channel = ChannelFactory.Create(_bufferPool.Pop(), encoder, decoder);
channel.Disconnected += OnChannelDisconnect;
channel.MessageReceived += OnMessage;
channel.Assign(socket);
_channels.TryAdd(channel.ChannelId, channel);
var args = OnClientConnected(channel);
if (!args.MayConnect)
{
if (args.Response != null)
{
channel.Send(args.Response);
}
channel.Close();
return;
}
}
catch (Exception exception) {
ListenerError(this, new ErrorEventArgs(exception));
}
if (_listener != null)
{
_listener.BeginAcceptSocket(OnAcceptSocket, null);
}
}
//private void OnAccept(object sender, SocketAsyncEventArgs e)
//{
// if (e.SocketError != SocketError.Success)
// {
// this.shutdown.Set();
// return;
// }
// Interlocked.Increment(ref this.numConnectedSockets);
// ServerClientContext context;
// if (!this.contexts.TryPop(out context))
// throw new InvalidOperationException("Failed to get a new client context, all is currently in use.");
// if (!this.ValidateClient(e.AcceptSocket))
// {
// try
// {
// e.AcceptSocket.Shutdown(SocketShutdown.Send);
// }
// catch
// {
// }
// e.AcceptSocket.Dispose();
// return;
// }
// var client = this.CreateClient(e.AcceptSocket.RemoteEndPoint);
// context.Assign(e.AcceptSocket, client);
// this.OnClientConnected(context);
// this.StartAccept();
//}
private void OnAcceptSocket(object sender, SocketAsyncEventArgs e)
{
if (_shuttingDown)
{
return;
}
try
{
// Required as _listener.Stop() disposes the underlying socket
// thus causing an objectDisposedException here.
var socket = e.AcceptSocket;
ITcpChannel channel;
if (!_channels.TryPop(out channel))
{
var decoder = _configuration.DecoderFactory();
var encoder = _configuration.EncoderFactory();
channel = _channelFactory.Create(_bufferPool.Pop(), encoder, decoder);
}
channel.Disconnected = OnChannelDisconnect;
channel.MessageReceived = OnMessage;
channel.Assign(socket);
var args = OnClientConnected(channel);
if (!args.MayConnect)
{
if (args.Response != null)
{
channel.Send(args.Response);
}
channel.Close();
return;
}
}
catch (Exception exception)
{
ListenerError(this, new ErrorEventArgs(exception));
}
this.StartAccept();
}