v0.4.0 major code cleanup

2026-08-09 19:55:40 +02:00 · 2019-03-01 01:57:00 +01:00
parent f383f3c056
commit 3ff2fff728
10 changed files with 453 additions and 394 deletions
--- a/02_Windows_App/Perun_v1/01_Classes/UDPController.cs
+++ b/02_Windows_App/Perun_v1/01_Classes/UDPController.cs
@@ -0,0 +1,91 @@
+// This class handles UDP communication
+using Newtonsoft.Json;
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Text;
+using System.Threading;
+using System.Windows.Forms;
+
+internal class UDPController
+{
+    // Main class for UDP listener
+    public static int intListenPort;        // Port to listen at
+    public static bool boolDone;            // Helper to exit main loop without killing thread
+    public static UdpClient udpListener;    // Listener object 
+    public static string[] arrLogHistory;   // Log history for GUI
+    public static string[] arrSendBuffer;   // Mysql send buffer
+    public static Thread thrUDPListener;    // Seperate thread for UDP
+
+    public static void Create(int intListenPort, ref string[] arrLogHistory, ref string[] arrSendBuffer)
+    {
+        // Create class
+        UDPController.intListenPort = intListenPort;
+        UDPController.arrLogHistory = arrLogHistory;
+        UDPController.arrSendBuffer = arrSendBuffer;
+    }
+
+    public static void StopListen()
+    {
+        // FInish listening
+        UDPController.boolDone = true;
+        UDPController.udpListener.Close();
+        UDPController.udpListener = null;
+
+        for (int i = 0; i < arrSendBuffer.Length - 1; i++)
+        {
+            arrSendBuffer[i] = null;
+        }
+
+    }
+
+    public static void StartListen()
+    {
+        Console.WriteLine("UDP Listen start");
+        try
+        {
+            // Start listening to UDP
+           
+            udpListener = new UdpClient(intListenPort);
+            IPEndPoint ipendpointGroupEP = new IPEndPoint(IPAddress.Loopback, intListenPort);
+            string strReceivedData;
+            byte[] arrReceiveByteArray;
+
+            // Start the main loop
+            UDPController.boolDone = false;
+            while (!UDPController.boolDone)
+            {
+                // Start listening
+                Console.WriteLine("UDP: Waiting for packet");
+                arrReceiveByteArray = udpListener.Receive(ref ipendpointGroupEP);
+                strReceivedData = Encoding.ASCII.GetString(arrReceiveByteArray, 0, arrReceiveByteArray.Length);
+                Console.WriteLine("Sender: {0} Payload: {1}", ipendpointGroupEP.ToString(), strReceivedData);
+
+                // Add to log history and rotate
+                dynamic dynamicRawUDPFrame = JsonConvert.DeserializeObject(strReceivedData); // Deserialize received frame
+                string strRawUDPFrameType = dynamicRawUDPFrame.type;
+                PerunHelper.LogHistoryAdd(ref arrLogHistory, "UDP packet received, type: " + strRawUDPFrameType);
+
+                // Add to mySQL send buffer (find first empty slot)
+                for (int i = 0; i < arrSendBuffer.Length - 1; i++)
+                {
+                    if (arrSendBuffer[i] == null)
+                    {
+                        arrSendBuffer[i] = strReceivedData;
+                        break;
+                    }
+                }
+            }
+            udpListener.Close(); // Close port
+        }
+        catch (Exception e)
+        {
+            // General exception found
+            if (e.HResult != -2147467259) {
+                Console.WriteLine(e.ToString());
+                PerunHelper.LogHistoryAdd(ref arrLogHistory, "ERROR UDP - port may be in use");
+            }
+        }
+        Console.WriteLine("UDP listen stop");
+    }
+}