private bool StateMachine_Searching(StepDefinition currentStep)
{
// get list of current system com ports
var descriptions = ComPortInfo.GetDescriptions();
// clear out any old connections
if (IsOpen)
{
IsConnected = false;
CurrentConnection?.Disconnect();
}
RunConnectionUpdate();
switch (TargetMode)
{
case ConnectionMode.AnyCom:
CurrentConnection = AutoConnectComPort(
descriptions.Select(s => s.Port).ToList(),
ConnectionParameters);
break;
case ConnectionMode.SelectionRule:
CurrentConnection = AutoConnectComPort(
descriptions.Where(TargetSelectionRule).Select(s => s.Port).ToList(),
ConnectionParameters);
break;
case ConnectionMode.PersistentPort:
descriptions = descriptions.Where(TargetSelectionRule).ToList();
if (descriptions.Count == 1)
{
CurrentConnection = ConnectComPort(
descriptions.Select(s => s.Port).First(),
ConnectionParameters);
CurrentConnection?.Connect();
if (CurrentConnection?.IsConnected != true)
{
CurrentConnection?.Disconnect();
CurrentConnection = null;
}
}
else if (descriptions.Count > 1)
{
MachineFunctions.JumpToLast(currentStep);
return(StepReturn.JumpCommandUsed);
}
break;
default:
break;
}
// if we didn't open a port, try again
if (!IsOpen)
{
return(StepReturn.RepeatStep);
}
// we opened a port, so update the listeners
ConnectionEventRegister();
RunConnectionUpdate();
// move to the next step
return(StepReturn.ContinueToNext);
}