private void PerformProtocol()
{
if (state == uMCPState.RUNNING)
{
if ((!isTxFinishedTimerRunning) &&
(!isTimeoutTimerRunning) &&
(select))
{
if (dataToSend.Count == 0)
{
if (SREP)
{
SendPacket(new uMCPREPPacket(ID, TID, N), true);
SREP = false;
}
else if (sentDataBlocks.Count > 0)
{
byte x = Convert.ToByte((A + 1) % 256);
SendPacket(new uMCPDATAPacket(ID, TID, R, x, sentDataBlocks[x], true), true);
}
else if ((!selectDefaultState) || (SACK))
{
SendPacket(new uMCPACKPacket(ID, TID, R, N), false);
SACK = false;
}
}
else
{
var blockToSend = dataToSend.Dequeue();
N++;
sentDataBlocks.Add(N, blockToSend);
bool isDTE = (dataToSend.Count == 0) || (sentDataBlocks.Count >= pipeliningLimit);
SendPacket(new uMCPDATAPacket(ID, TID, R, N, blockToSend, isDTE), isDTE);
}
}
}
}
private void OnPortFree()
{
if (dataToSend.Count > 0)
{
var msg = NMEAParser.BuildProprietarySentence(ManufacturerCodes.MCP, "4", new object[] { dataToSend.Dequeue() });
port.SendData(msg);
IsWaiting = true;
}
}
