/// <summary>
/// Getting IORB requests from IORequests queue, sending it to Simulator;
/// Receiving Simulator answers, enqueing it to IOAnswers queue.
/// </summary>
public void ProcessRequestsFromQueue(TimeSpan timeout, CancellationToken token)
{
try
{
Console.WriteLine("Process Request form queue thread id={0}", Thread.CurrentThread.ManagedThreadId);
while (!token.IsCancellationRequested)
{
bool isSuccessful;
IORequestBlock forProcess = IORequests.DequeueRequest(out isSuccessful, timeout);
if (isSuccessful)
{
CommunicationObject commObj;
if (CommunicationManager.CommunicationObjects.TryGetValue(forProcess.ProcessControllerName, out commObj))
{
// to do: napraviti taskove i asinhrono
if (commObj.ProcessRequest(forProcess))
{
}
else
{
}
}
}
}
}
catch (Exception e) { }
Console.WriteLine("Process requests Action Finished.");
}
/// <summary>
/// Getting IORB requests from IORequests queue, sending it to Simulator;
/// Receiving Simulator answers, enqueing it to IOAnswers queue.
/// </summary>
public void ProcessRequestsFromQueue()
{
while (!isShutdown)
{
bool isSuccessful;
IORequestBlock forProcess = IORequests.DequeueRequest(out isSuccessful);
if (isSuccessful)
{
TcpClient client;
if (TcpChannels.TryGetValue(forProcess.ProcessControllerName, out client))
{
try
{
// to do: test this case...connection lasts forever?
if (!client.Connected)
{
processControllers.TryGetValue(forProcess.ProcessControllerName, out ProcessController rtu);
client.Connect(rtu.HostName, rtu.HostPort);
}
NetworkStream stream = client.GetStream();
int offset = 0;
stream.Write(forProcess.SendBuff, offset, forProcess.SendMsgLength);
// to do: processing big messages. whole, or in parts?
// ...
forProcess.RcvBuff = new byte[client.ReceiveBufferSize];
var length = stream.Read(forProcess.RcvBuff, offset, client.ReceiveBufferSize);
forProcess.RcvMsgLength = length;
IORequests.EnqueueAnswer(forProcess);
}
catch (Exception e)
{
// to do: handle this...
Console.WriteLine(e.Message);
//if (client.Connected)
// client.Close();
// TcpChannels.Remove(toProcess.RtuName);
}
}
else
{
Console.WriteLine("\nThere is no communication link with {0} rtu. Request is disposed.", forProcess.ProcessControllerName);
}
}
Thread.Sleep(millisecondsTimeout: timerMsc);
}
}
