public void SavePassiveStim(int booth_number, StimulationTrain stim, uint microseconds_per_sample)
{
//Save the data to a file (or multiple files)
List <StreamWriter> writers = this.GetStreamWriter(booth_number);
//Log the current save time AFTER we get the stream (it is important that this happens AFTER and not before, because of
//how we check for refreshing streams based on the date of the last stimulation that occurred).
LastSaveForEachBooth[booth_number] = DateTime.Now;
foreach (var w in writers)
{
if (w != null)
{
w.Write(stim.StimulationTime.ToString("yyyy-MM-dd:HH:mm:ss:ffffff"));
w.Write(", " + microseconds_per_sample.ToString());
for (int j = 0; j < stim.Data.Count; j++)
{
w.Write(", ");
w.Write(stim.Data[j].ToString("0.00"));
}
w.Write("\r\n");
//Flush the stream so that the data gets written to the file for sure.
//If we don't flush the stream here, then the computer will decide when to flush it, which could be hours from now
//And what if a power outage happened?!?!? The data would be lost. Flush the stream.
w.Flush();
}
}
}
private void HandleStreaming(object sender, DoWorkEventArgs e)
{
Stopwatch refractory_period_timer = new Stopwatch();
//Set the oscilloscope's channel
SetOscilloscopeChannel();
//Set up the trigger for this scope
SetupTrigger();
//Loop as long as the background thread has not been cancelled
while (!_backgroundWorker.CancellationPending)
{
if (State == ScopeState.Recording)
{
switch (TrialCollectionState)
{
case TrialState.SetupForNextTrigger:
RunBlock();
TrialCollectionState = TrialState.WaitForTrigger;
break;
case TrialState.WaitForTrigger:
bool r = CheckIfReady();
if (r)
{
TrialCollectionState = TrialState.FinalizingCollectionAfterTrigger;
refractory_period_timer.Restart();
}
break;
case TrialState.FinalizingCollectionAfterTrigger:
//Collect the most recent stimulation train
var values = RetrieveOscilloscopeData();
//Create a StimulationTrain object to the store the data for the collected stim train
StimulationTrain t = new StimulationTrain();
t.StimulationTime = DateTime.Now;
t.Data = values.Select(d => MaxVoltage * (double)d / (double)this.ScopeMaxValue).ToList();
//Store the most recent stimulation train
MostRecentStimulationTrain = t;
//Notify that we have a new stimulation train
BackgroundPropertyChanged("MostRecentStimulationTrain");
//Set the state to set up for a new stim train
TrialCollectionState = TrialState.WaitingOnRefractoryPeriod;
break;
case TrialState.WaitingOnRefractoryPeriod:
if (refractory_period_timer.ElapsedMilliseconds >= (RefractoryPeriod / 1000))
{
TrialCollectionState = TrialState.SetupForNextTrigger;
refractory_period_timer.Reset();
}
break;
}
}
//Notify the UI of any changes
_backgroundWorker.ReportProgress(0);
//Sleep the thread for a little while so we don't consume the CPU
Thread.Sleep(33);
}
}
