private void ReceiveCallback(IAsyncResult ar)
{
// Retrieve the state object and the client socket
// from the asynchronous state object.
ConnectionHandlerStateObj state = (ConnectionHandlerStateObj)ar.AsyncState;
Socket client = state.HandlerSocket;
// Read data from the remote device.
try
{
int bytesRead = client.EndReceive(ar);
}
catch (SocketException)
{
try
{
if (ConnectionLostEvent != null)
{
ConnectionLostEvent(this.ClientID);
}
}
catch (Exception)
{
}
}
catch (Exception)
{
}
}
private void AcceptConnectionCallback(IAsyncResult ar)
{
try
{
Socket listener = (Socket)ar.AsyncState;
Socket handler = listener.EndAccept(ar);
ConnectionHandlerStateObj state = new ConnectionHandlerStateObj();
state.workSocket = handler;
handler.BeginReceive(state.buffer, 0, ConnectionHandlerStateObj.BufferSize, (System.Net.Sockets.SocketFlags) 0, new AsyncCallback(ReadCallback), state);
this._handlersList.Add(handler, null, null, null);
try
{
string clientID = handler.RemoteEndPoint.ToString();
if (ClientConnectionReceivedEvent != null)
{
ClientConnectionReceivedEvent(clientID);
}
}
catch (Exception)
{
}
}
catch (Exception)
{
}
finally
{
waitConnectionSignal.Set();
}
}
private void StartReceiving()
{
this._receiveDoneSignal.Reset();
ConnectionHandlerStateObj state = new ConnectionHandlerStateObj(this._listenerClient);
this._listenerClient.BeginReceive(state.DataBuffer, 0, state.BufferSize, (System.Net.Sockets.SocketFlags) 0, new AsyncCallback(ReceiveCallback), state);
this._receiveDoneSignal.WaitOne();
}
private void DisconnectCallback(IAsyncResult ar)
{
try
{
ConnectionHandlerStateObj state = (ConnectionHandlerStateObj)ar.AsyncState;
Socket handler = state.workSocket;
}
catch (Exception)
{
}
}
private void ReadCallback(IAsyncResult ar)
{
string content = string.Empty;
ConnectionHandlerStateObj state = (ConnectionHandlerStateObj)ar.AsyncState;
Socket handler = state.workSocket;
try
{
int bytesRead = handler.EndReceive(ar);
if (bytesRead > 0)
{
try
{
string clientID = handler.RemoteEndPoint.ToString();
if (DataReceivedEvent != null)
{
DataReceivedEvent(clientID, state.buffer, bytesRead);
}
}
catch (Exception)
{
}
handler.BeginReceive(state.buffer, 0, ConnectionHandlerStateObj.BufferSize, (System.Net.Sockets.SocketFlags) 0, new AsyncCallback(ReadCallback), state);
}
}
catch (SocketException)
{
try
{
string clientID = handler.RemoteEndPoint.ToString();
if (ClientConnectionLostEvent != null)
{
ClientConnectionLostEvent(clientID);
}
}
catch (Exception)
{
}
}
catch (Exception)
{
}
}
