private async Task EstablishSerial(CancellationToken token)
{
IsBusy = true;
Dictionary <string, SerialComm> comms = Globals.Serials;
if (!comms.ContainsKey(COMPORT))
{
comms.Add(COMPORT, new SerialComm());
_serial = comms[COMPORT];
}
else
{
_serial = comms[COMPORT];
if (_serial.IsOpen)
{
return;
}
}
Globals.Logger.LogInformation($"Opened serial port {COMPORT}");
if (await CreateNewMeter() == null)
{
_serial.Close();
IsBusy = false;
Completed = false;
return;
}
Completed = true;
// Send message to create new tab that will be able to commission a meter
(Application.Current.Properties["MessageBus"] as MessageBus)
.Publish(new MessageCenter("newTab", new Tuple <string, string>(_comPort, _id)));
}
/// <summary>
/// Initializes this instance of the class in order to continuously call
/// Phase Diagnostic for Meter.
/// </summary>
/// <returns></returns>
private async Task PhaseDiagnostic()
{
// Initialize variables if this is the first time
if (_serial == null)
{
int channel = 1;
int length = Meter.Channels.Count;
_oldPhase1Text = new string[length];
_oldPhase2Text = new string[length];
for (int i = 0; i < 5; i++)
{
if (i == 4)
{
int cnt = 0;
for (int j = 0; j < length; j++)
{
int res = (cnt++ % 3);
Phase1Text[j, i] = res == 0 ? "A" : res == 1 ? "B" : "C";
res = (cnt++ % 3);
Phase2Text[j, i] = res == 0 ? "A" : res == 1 ? "B" : "C";
_allowCheck[j, 0] = false;
_allowCheck[j, 1] = false;
_oldPhase1Text[j] = string.Empty;
_oldPhase2Text[j] = string.Empty;
}
}
else if (i == 3)
{
// Displays the CT banks while commissioning
for (int j = 0; j < length; j++)
{
Phase1Text[j, i] = channel++.ToString();
Phase2Text[j, i] = channel++.ToString();
}
}
else
{
for (int j = 0; j < length; j++)
{
Phase1Text[j, i] = string.Empty;
Phase2Text[j, i] = string.Empty;
}
}
}
}
// Reset the serial
_serial = Globals.Serials[_idx];
// wait for the value to be reset
while (_break)
{
}
// Continuous loop to retrieve the phase diagnostic for a meter
while (true)
{
// Requests the Phase Diagnostic from the meter, if successful
// continue with discovering whether or not there was a large enough
// change
var retVal = Process();
if (retVal.Contains("Amps"))
{
UpdateMessage();
Detection();
}
// Switches the connected meter object to this serial comm
else if (retVal == "switch")
{
// Command to change the meter being actively evaluated and
// associated with the serial port
(Application.Current.Properties["MessageBus"] as MessageBus)
.Publish(new MessageCenter("switchMeters"));
// Loop here until external code sets break state to avoid race condition
while (!_break)
{
}
}
// The Process function returns false when user closed the Attempting to reconnect
// popup window or if the meter was switched so this function forces
// the user to go back a page and cancels the phase diagnostic reads
else if (!_break && string.IsNullOrEmpty(retVal))
{
(Application.Current.Properties["MessageBus"] as MessageBus)
.Publish(new MessageCenter("backward"));
// Loop here until external code sets break state to avoid race condition
while (!_break)
{
}
}
if (_break)
{
break;
}
}
// reset break value so we can continuously execute this function
// if we need to revisit this page
_break = false;
}
