// we are on our own thread from the IOCP thread pool:
void dispatcher(uint pIndex) {
CmdContext _cmdCtx = null;
try {
_cmdCtx = CmdContextCache.Get(pIndex);
var _cmd = commandFactory.GetCommand(_cmdCtx.DataReceived);
_cmd.Execute();
_cmd.SendResponse(localHost, _cmdCtx.RmtEndPoint);
}
catch (Exception _ex) {
log(LogSeverity.Critical, UDP_SERVER_DISPATCHER_LABEL, string.Format("Exception:\r\n{0}", _ex));
if (_cmdCtx != null) {
log(LogSeverity.Status, UDP_SERVER_DISPATCHER_LABEL, string.Format("Exception:\r\n{0}", _cmdCtx.DataReceived));
}
}
finally {
CmdContextCache.Remove(pIndex);
}
}
//--------------------------Private methods------------------------------------------------------
void receive() {
var _receiveBuffer = new byte[BUFFER_SIZE];
uint _ctxIndex = 0;
//-- This value is not realy used. Remote end point is passed as reference, but we only care
//-- about the returned value, that represents the end point that sent the datagram/command
EndPoint _remoteEP = new IPEndPoint(/*IPAddress.Parse("127.0.0.1")*/ IPAddress.Any, 0);
stopped = false;
while (! stop) {
try {
int _numberOfBytesReceived;
try {
_numberOfBytesReceived = localHost.ReceiveFrom(_receiveBuffer, ref _remoteEP);
}
catch (SocketException _se) {
var _errorCode = (SocketError) _se.ErrorCode;
if (_errorCode != SocketError.TimedOut) {
log(LogSeverity.Critical, UDP_SERVER_RECEIVE_LABEL, string.Format("Socket error:\r\n{0}", _se));
}
continue;
}
//-- Convert raw bytes to string.
var _dataReceived = Encoding.ASCII.GetString(_receiveBuffer, 0, _numberOfBytesReceived);
_ctxIndex++;
CmdContextCache.Save(_ctxIndex, new CmdContext(_dataReceived, _remoteEP));
threadPool.PostEvent(_ctxIndex);
}
catch (Exception _ex) {
log(LogSeverity.Critical, UDP_SERVER_RECEIVE_LABEL, string.Format("Exception:\r\n{0}", _ex));
}
}
stopped = true;
}