public void serve_client(TcpClient client, int ID)
{
write_to_msg_box("Client " + Convert.ToString(ID) + " Connected!!\n");
NetworkStream stream = client.GetStream();
// Array to store incoming data
Byte[] bytes = new Byte[PACKET_LENGTH];
// Object to store information about subject
Subj S = new Subj(client, 0, ID);
// Object to get confid values based on 2D Gaussian
Screen_Prob_Map p_m = new Screen_Prob_Map(MONITOR_DIM_X, MONITOR_DIM_Y, 250, 100);
int i;
clear_chart(ID);
try
{
while ((i = stream.Read(bytes, 0, PACKET_LENGTH)) != 0)
{
// Convert byte array to float
float[] float_array = new float[NUM_FLOATS];
Console.Write("\n"+Convert.ToString(ID)+" - ");
for (int ii = 0; ii < float_array.Length; ii++)
{
float_array[ii] = BitConverter.ToSingle(bytes, ii * sizeof(float));
if (ii < 11)
Console.Write(float_array[ii] + " ");
}
Console.Write("\n");
// Process float array and get estimated gaze point
Point_Obj est_gaze_pt = process_float_data(float_array, S.get_ID());
// Log estimated gaze point
S.get_gaze_pts().Add(est_gaze_pt);
// Check if subject is distracted
S = check_if_distract(S, est_gaze_pt);
Console.WriteLine("{0} - NUM DISTRACT FRAMES: {1}", S.get_ID(), S.get_num_frames_distracted());
if (S.get_num_frames_distracted() > DISTRACT_WINDOW)
{
write_to_alert_box(1, S.get_ID());
}
else
{
write_to_alert_box(0, S.get_ID());
}
//write_pt_to_hist(est_gaze_pt, ID, Convert.ToInt32(float_array[0]));
write_pt_to_hist(est_gaze_pt, p_m, ID, Convert.ToInt32(float_array[0]));
}
stream.Close();
client.Close();
write_to_msg_box("Connection to Client " + Convert.ToString(S.get_ID()) + " Closed");
// Set occupied flag back to 0 (need thread-safe call)
mut.WaitOne();
occupied_flags[ID] = 0; // atomic (?)
write_to_msg_box("CLIENT FLAG ARRAY: " + occupied_flags[0].ToString() + " " + occupied_flags[1].ToString());
mut.ReleaseMutex();
}
catch (Exception EE)
{
Console.WriteLine("EXCEPTION: {0}\n", EE.Message);
//all_subj.Add(S);
stream.Close();
client.Close();
write_to_msg_box("Connection to Client "+Convert.ToString(S.get_ID())+" Closed");
// Set occupied flag back to 0 (need thread-safe call)
mut.WaitOne();
occupied_flags[ID] = 0; // atomic (?)
write_to_msg_box("CLIENT FLAG ARRAY: " + occupied_flags[0].ToString() + " " + occupied_flags[1].ToString());
mut.ReleaseMutex();
}
//all_subj.Add(S);
// Set occupied flag back to 0 (need thread-safe call)
//mut.WaitOne();
//occupied_flags[ID] = 0; // atomic (?)
//mut.ReleaseMutex();
}
private void write_pt_to_hist(Point_Obj p, Screen_Prob_Map p_m, int ID, int frame_num)
{
if (((Chart)this.hist_chart_list[ID]).InvokeRequired)
{
ChartHistCallback cH = new ChartHistCallback(write_pt_to_hist);
this.Invoke(cH, new object[] { p, p_m, ID, frame_num });
}
else
{
Chart chart = (Chart)this.hist_chart_list[ID];
chart.ChartAreas[0].AxisX.Maximum = frame_num; // display points up to current frame
if (p.get_x() < -MONITOR_DIM_X / 2 || p.get_x() > MONITOR_DIM_X / 2)
{
chart.Series["Series1"].Points.AddXY(frame_num, 0.0F);
}
else if (p.get_y() < -MONITOR_DIM_Y / 2 || p.get_y() > MONITOR_DIM_Y / 2)
{
chart.Series["Series1"].Points.AddXY(frame_num, 0.0F);
}
else
{
//chart.Series["Series1"].Points.AddXY(frame_num, 0);
double D = p_m.look_up_value(Convert.ToInt32(p.get_x()) + MONITOR_DIM_X / 2, Convert.ToInt32(p.get_y()) + MONITOR_DIM_Y / 2);
//Console.WriteLine(D);
//Console.WriteLine("Adding Point "+D.ToString());
chart.Series["Series1"].Points.AddXY(frame_num, Convert.ToSingle(D));
//write_to_msg_box(frame_num.ToString() + " " + D.ToString());
}
if (frame_num > 100)
{
chart.ChartAreas[0].AxisX.Minimum = chart.ChartAreas[0].AxisX.Maximum - 100;
}
}
}