private void ReceiveData()
{
empRunning = true;
while(empRunning){
try{
switch(empState){
case EmpaticaState.fresh:
Debug.Log("Receive thread running, state is fresh, trying to open Empatica connection");
Debug.Log("Client connected: " + client.Connected);
stream.Write(encoding.GetBytes("open"),0,4); //Use this to "open" - then "start"
empState = EmpaticaState.opening;
break;
case EmpaticaState.opening:
Debug.Log("Opening Empatica connection");
if(ReadResponse() == "OK\n")
{
stream.Write(encoding.GetBytes("start"),0,5);
empState = EmpaticaState.starting;
}
break;
case EmpaticaState.starting:
Debug.Log("Empatica connection opened, will start registering stream");
if(ReadResponse() == "OK\n")
{
empState = EmpaticaState.receiving;
}
break;
case EmpaticaState.receiving:
if(stream.DataAvailable)
{
ArrayList chunk = ReadData();
dataStorage.AddRange(chunk);
if(reportDuringReading && dataStorage.Count%64 == 0)
Debug.Log("Read " + dataStorage.Count.ToString() + " samples.");
if(baseLine == 0 && dataStorage.Count > 840)
baseLine = CalculateBaseLine();
}
break;
case EmpaticaState.stopping:
if(!sentStopSignal)
{
stream.Write(encoding.GetBytes("stop"),0,4);
sentStopSignal = true;
}
latestData = StopReading();
if(latestData[0] as string == "OK\n")
{
empState = EmpaticaState.stopped;
} else if (latestData[0] as string == "ER\n")
{
empState = EmpaticaState.error;
} else
{
dataStorage.AddRange(latestData);
if(reportDuringReading && dataStorage.Count%10 == 0)
Debug.Log("Read " + dataStorage.Count.ToString() + " samples.");
}
break;
case EmpaticaState.stopped:
Debug.Log("Empatica stream stopped");
stream.Write(encoding.GetBytes("close"),0,5);
empState = EmpaticaState.closing;
break;
case EmpaticaState.closing:
Debug.Log("Closing the Empatica connection");
if(ReadResponse() == "OK\n")
{
empState = EmpaticaState.closed;
}
break;
case EmpaticaState.closed:
Debug.Log("Empatica connection gracefully closed - aborting the receiving thread");
stream.Close();
client.Close();
receiveThread.Abort();
break;
case EmpaticaState.error:
break;
default:
break;
}
} catch(SocketException e)
{
print(e.Message);
}
}
}
public void StopEmpatica()
{
empState = EmpaticaState.stopping;
}
