/// <summary> Funciton to remove a socket from the list of sockets </summary>
/// <param name="socketClient"> A reference to a socket to remove </param>
public void RemoveSocket(SocketClient socketClient)
{
try
{
lock (SocketClientList)
{
// Remove ths client socket object from the list
SocketClientList.Remove(socketClient);
}
}
catch (Exception exception)
{
ErrorHandler(socketClient, exception);
}
}
/// <summary> Function to process and accept socket connection requests </summary>
private void AcceptConnections()
{
Socket socket = null;
try
{
IPAddress useIpAddress = null;
IPHostEntry hostEntries = Dns.GetHostEntry(IpAddress);
foreach (IPAddress address in hostEntries.AddressList)
{
// Find the IPv4 address first
if (address.AddressFamily == AddressFamily.InterNetwork)
{
useIpAddress = address;
break;
}
}
// Now just use the first address
if (useIpAddress == null)
{
useIpAddress = hostEntries.AddressList[0];
}
IpAddress = useIpAddress.ToString();
// Create a new TCPListner and start it up
TcpListener = new TcpListener(useIpAddress, Port);
TcpListener.Start();
for (;;)
{
try
{
// If a client connects, accept the connection.
socket = TcpListener.AcceptSocket();
}
catch (System.Net.Sockets.SocketException e)
{
// Did we stop the TCPListener
if (e.ErrorCode != 10004)
{
// Call the error handler
ErrorHandler(null, e);
ErrorHandler(null, new Exception("Waiting for new connection 1"));
// Close the socket down if it exists
if (socket != null)
{
if (socket.Connected)
{
socket.Dispose();
}
}
}
else
{
ErrorHandler(null, new Exception("Shutting Down Accept Thread"));
break;
}
}
catch (Exception e)
{
// Call the error handler
ErrorHandler(null, e);
ErrorHandler(null, new Exception("Waiting for new connection 2"));
// Close the socket down if it exists
if (socket != null)
{
if (socket.Connected)
{
socket.Dispose();
}
}
}
try
{
if (socket.Connected)
{
string remoteEndPoint = socket.RemoteEndPoint.ToString();
// Create a SocketClient object
SocketClient clientSocket = new SocketClient(this,
socket,
(remoteEndPoint.Length < 15) ? string.Empty : remoteEndPoint.Substring(0, 15),
Port,
SizeOfRawBuffer,
SizeOfByteBuffer,
UserArg,
new SocketClient.MESSAGE_HANDLER(MessageHandler),
new SocketClient.CLOSE_HANDLER(CloseHandler),
new SocketClient.ERROR_HANDLER(ErrorHandler));
// Add it to the list
lock (SocketClientList)
{
SocketClientList.Add(clientSocket);
}
// Call the Accept Handler
AcceptHandler(clientSocket);
// Wait for a message
clientSocket.Receive();
}
}
catch (Exception e)
{
// Call the error handler
ErrorHandler(null, e);
ErrorHandler(null, new Exception("Waiting for new connection 3"));
}
}
}
catch (Exception e)
{
// Call the error handler
ErrorHandler(null, e);
ErrorHandler(null, new Exception("Shutting Down Accept Thread"));
// Close the socket down if it exists
if (socket != null)
{
if (socket.Connected)
{
socket.Dispose();
}
}
}
}
/// <summary> Called when a message is extracted from the socket </summary>
/// <param name="socket"> The SocketClient object the message came from </param>
private void MessageHandler(SocketClient socket)
{
try
{
// Store the raw message data in the buffer
socket.MessageBuffer.Write(_SocketClient.RawBuffer, 0, _SocketClient.MessageLength);
ProcessReceivedData();
}
catch (Exception exception)
{
OnError("Message Handler", exception);
}
}
/// <summary> Called when a socket error occurs </summary>
/// <param name="socket"> The SocketClient object the message came from </param>
/// <param name="exception"> The reason for the error </param>
private void ErrorHandler(SocketClient socket, Exception exception)
{
try
{
OnError("Error Handler", exception);
}
catch
{
}
}
/// <summary> Called when a socket connection is closed </summary>
/// <param name="socket"> The SocketClient object the message came from </param>
private void CloseHandler(SocketClient socket)
{
try
{
_Status = ConnectionStatus.Closed;
OnDisconnect();
// Wake up this thread if it is waiting
EnquireDone.Set();
}
catch (Exception exception)
{
OnError("Close Handler", exception);
}
}
/// <summary> Constructor for SMSC support </summary>
public SmppClient(DataCodings defaultEncoding, SocketClient socketClient)
{
DefaultEncoding = defaultEncoding;
_SocketClient = socketClient;
// Mark the connection as open
_Status = ConnectionStatus.Open;
}
/// <summary> Constructor for ESME support </summary>
public SmppClient(DataCodings defaultEncoding)
{
DefaultEncoding = defaultEncoding;
// Create the socket client
_SocketClient = new SocketClient(10485760, 0, this,
new SocketClient.MESSAGE_HANDLER(MessageHandler),
new SocketClient.CLOSE_HANDLER(CloseHandler),
new SocketClient.ERROR_HANDLER(ErrorHandler));
_EnquireLinkTimer = new SynchronousTimer(new SynchronousTimer.SynchronousTimerHandler(SendEnquireLink), null, _EnqInterval);
}