// Start waiting for data from the client
private void WaitForData(Socket socket, string clientId)
{
try
{
if (workerCallback == null)
{
// Specify the call back function which is to be
// invoked when there is any write activity by the
// connected client.
workerCallback = OnDataReceived;
}
SocketPacket socketPacket = new SocketPacket(socket, clientId);
socket.BeginReceive(socketPacket.DataBuffer, 0, socketPacket.DataBuffer.Length, SocketFlags.None,
workerCallback, socketPacket);
}
catch (SocketException se)
{
#if DEBUG
Debug.WriteLine("mbrc-log [SocketServer] 273: \t" + se);
#endif
if (se.ErrorCode != 10053)
{
#if DEBUG
ErrorHandler.LogError(se);
#endif
}
else
{
EventBus.FireEvent(new MessageEvent(EventType.ActionClientDisconnected, string.Empty, clientId));
}
}
}
// This is the call back function which will be invoked when the socket
// detects any client writing of data on the stream
private void OnDataReceived(IAsyncResult ar)
{
string clientId = String.Empty;
try
{
SocketPacket socketData = (SocketPacket)ar.AsyncState;
// Complete the BeginReceive() asynchronus call by EndReceive() method
// which will return the number of characters written to the stream
// by the client.
clientId = socketData.ClientId;
int iRx = socketData.MCurrentSocket.EndReceive(ar);
char[] chars = new char[iRx + 1];
System.Text.Decoder decoder = System.Text.Encoding.UTF8.GetDecoder();
decoder.GetChars(socketData.DataBuffer, 0, iRx, chars, 0);
if (chars.Length == 1 && chars[0] == 0)
{
socketData.MCurrentSocket.Close();
socketData.MCurrentSocket.Dispose();
return;
}
String message = new string(chars);
if (String.IsNullOrEmpty(message))
{
return;
}
#if DEBUG
Debug.WriteLine(DateTime.Now.ToString(CultureInfo.InvariantCulture) + " : message Received : " + message);
#endif
handler.ProcessIncomingMessage(message, socketData.ClientId);
// Continue the waiting for data on the Socket.
WaitForData(socketData.MCurrentSocket, socketData.ClientId);
}
catch (ObjectDisposedException)
{
EventBus.FireEvent(new MessageEvent(EventType.ActionClientDisconnected, string.Empty, clientId));
#if DEBUG
Debug.WriteLine(DateTime.Now.ToString(CultureInfo.InvariantCulture) + " : OnDataReceived: Socket has been closed\n");
#endif
}
catch (SocketException se)
{
if (se.ErrorCode == 10054) // Error code for Connection reset by peer
{
Socket deadSocket;
if (availableWorkerSockets.ContainsKey(clientId))
{
availableWorkerSockets.TryRemove(clientId, out deadSocket);
}
EventBus.FireEvent(new MessageEvent(EventType.ActionClientDisconnected, string.Empty, clientId));
}
else
{
#if DEBUG
ErrorHandler.LogError(se);
#endif
}
}
}
// Start waiting for data from the client
private void WaitForData(Socket socket, string clientId)
{
try
{
if (workerCallback == null)
{
// Specify the call back function which is to be
// invoked when there is any write activity by the
// connected client.
workerCallback = OnDataReceived;
}
SocketPacket socketPacket = new SocketPacket(socket, clientId);
socket.BeginReceive(socketPacket.DataBuffer, 0, socketPacket.DataBuffer.Length, SocketFlags.None,
workerCallback, socketPacket);
}
catch (SocketException se)
{
#if DEBUG
Debug.WriteLine("mbrc-log [SocketServer] 273: \t" + se);
#endif
if (se.ErrorCode != 10053)
{
#if DEBUG
ErrorHandler.LogError(se);
#endif
}
else
{
EventBus.FireEvent(new MessageEvent(EventType.ActionClientDisconnected, string.Empty, clientId));
}
}
}
