private static byte[] SendMessageToSocketAndListenToCallback(IPEndPoint source, IPEndPoint destination, byte[] bufferToSend, BytesReceivedDelegate callBack, ProtocolType protocol, byte[] heartbeatMessage, Regex responseFormat, BytesReceivedDelegate heartbeatCallback, bool isSynchronious, bool useSocketPool)
{
Socket TCPSocket = null;
if (useSocketPool)
{
TCPSocket = CheckIfSocketAlreadyOpen(source, destination);
}
HeartbeatInfo info = null;
try {
if (TCPSocket == null)
{
if (protocol == ProtocolType.Udp)
{
TCPSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, protocol);
}
else if (protocol == ProtocolType.Tcp)
{
TCPSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, protocol);
}
TCPSocket.Bind(source);
if (protocol == ProtocolType.Tcp)
{
TCPSocket.Connect(destination);
if (useSocketPool)
{
info = new HeartbeatInfo(TCPSocket, heartbeatMessage, responseFormat, heartbeatCallback, 10);
info.CallbackDelegate += new BytesReceivedDelegate(CheckIfHeartbeatFailed);
lock (openSocketsList)
{
openSocketsList.Add(info);
}
}
}
}
// lock (TCPSocket) {
if (bufferToSend != null)
{
if (protocol == ProtocolType.Tcp)
{
TCPSocket.Send(bufferToSend);
}
else if (protocol == ProtocolType.Udp)
{
TCPSocket.SendTo(bufferToSend, destination);
}
}
StateObject state = new StateObject();
if (isSynchronious)
{
TCPSocket.ReceiveTimeout = 5000;
TCPSocket.Receive(state.buffer);
if (!useSocketPool)
{
TCPSocket.Shutdown(SocketShutdown.Both);
TCPSocket.Close();
}
return(state.buffer);
}
else if (callBack != null)
{
state.workSocket = TCPSocket;
state.callbackDelegate += callBack;
if (info != null)
{
state.callbackDelegate += info.ProcessMessageReceivedFromSocket;
}
TCPSocket.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
new AsyncCallback(ReadCallback), state);
}
// }
return(null);
}
catch (Exception ex) {
LoggingHelper.LogExceptionInApplicationLog(ex.Source, ex, EventLogEntryType.Error);
LoggingHelper.WriteExceptionLogEntry(ex.Source, ex);
if (TCPSocket != null && TCPSocket.Connected)
{
TCPSocket.Shutdown(SocketShutdown.Both);
TCPSocket.Close();
}
}
return(null);
}