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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 434 | arune | 1 | using System; |
| 2 | using System.Net; |
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| 3 | using System.Net.Sockets; |
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| 4 | using System.Text; |
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| 5 | using System.Threading; |
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| 6 | using System.Collections; |
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| 7 | using System.IO; |
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| 8 | |||
| 9 | public class TcpServer { |
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| 10 | private TcpListener listener; |
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| 11 | private bool running; |
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| 12 | private int port; |
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| 13 | private ArrayList clients; |
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| 14 | const byte DEBUG_LEVEL = 2; //0, 1, 2, 3 |
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| 15 | |||
| 16 | public TcpServer(int port) { |
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| 17 | running = true; |
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| 18 | listener = new TcpListener(port); |
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| 19 | listener.Start(); |
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| 20 | this.port = port; |
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| 21 | clients = new ArrayList(); |
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| 22 | } |
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| 23 | |||
| 24 | public void thread() { |
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| 25 | if (DEBUG_LEVEL>1) { Console.WriteLine("Waiting for clients on port {0}", port); } |
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| 26 | while (running) { |
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| 27 | while (!listener.Pending() && running) { |
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| 28 | Thread.Sleep(20); |
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| 29 | foreach (Connection client in clients) { |
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| 30 | //... hämta data från client... |
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| 31 | //om ny data så skicka till alla i clients utom client |
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| 32 | string data; |
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| 33 | bool hasData = client.getData(out data); |
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| 34 | if (hasData) { |
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| 35 | foreach (Connection sendclient in clients) { |
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| 36 | if (sendclient != client) { |
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| 37 | sendclient.sendDataDummy(data); |
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| 38 | } |
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| 39 | } |
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| 40 | } |
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| 41 | } |
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| 42 | |||
| 43 | foreach (Connection client in clients) { |
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| 44 | if (!client.isConnected()) { |
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| 45 | clients.Remove(client); |
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| 46 | if (DEBUG_LEVEL>1) { Console.WriteLine("Client dropped"); } |
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| 47 | break; |
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| 48 | } |
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| 49 | } |
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| 50 | } |
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| 51 | if (running) { |
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| 52 | if (DEBUG_LEVEL>1) { Console.WriteLine("Client connected on port {0}", port); } |
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| 53 | TcpClient handler = listener.AcceptTcpClient(); |
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| 54 | Connection newconn = new Connection(handler); |
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| 55 | clients.Add(newconn); |
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| 56 | Thread t = new Thread(newconn.thread); |
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| 57 | t.Start(); |
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| 58 | //newconn.start(); |
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| 59 | } |
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| 60 | } |
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| 61 | } |
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| 62 | |||
| 63 | public void stop() { |
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| 64 | running = false; |
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| 65 | foreach (Connection client in clients) { |
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| 66 | client.stop(); |
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| 67 | } |
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| 68 | } |
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| 69 | |||
| 70 | public void sendCanPacket(CanPacket cp) { |
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| 71 | foreach (Connection client in clients) { |
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| 72 | client.sendData(cp); |
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| 73 | } |
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| 74 | } |
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| 75 | |||
| 76 | } |
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| 77 | |||
| 78 | class Connection { |
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| 79 | private TcpClient client; |
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| 80 | private NetworkStream ns; |
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| 81 | private bool connected; |
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| 82 | |||
| 83 | private static Queue CanPackets = Queue.Synchronized(new Queue()); |
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| 84 | |||
| 85 | public Connection(TcpClient client) { |
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| 86 | this.client = client; |
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| 87 | } |
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| 88 | |||
| 89 | public bool getData (out string data) { |
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| 90 | data = null; |
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| 91 | if (CanPackets.Count>0) { |
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| 92 | data = (string)CanPackets.Dequeue(); |
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| 93 | return true; |
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| 94 | } |
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| 95 | return false; |
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| 96 | } |
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| 97 | |||
| 98 | public void thread() { |
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| 99 | //läs och lagra så att en funktion kan läsa från mig |
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| 100 | ns = client.GetStream(); |
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| 101 | byte[] data = new byte[1024]; |
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| 102 | int recv; |
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| 103 | connected = true; |
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| 104 | while (connected) { |
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| 105 | Thread.Sleep(20); |
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| 106 | if (ns.DataAvailable) { |
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| 107 | recv = ns.Read(data, 0, data.Length); |
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| 108 | if (recv == 0) |
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| 109 | break; |
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| 110 | |||
| 111 | string tcpdata = Encoding.ASCII.GetString(data, 0, recv); |
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| 112 | //string [] split = null; |
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| 113 | //split = tcpdata.Split(" "); |
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| 114 | |||
| 115 | //if (split.Length ) { |
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| 116 | CanPackets.Enqueue(tcpdata); |
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| 117 | //} |
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| 118 | //Console.WriteLine(System.Text.Encoding.ASCII.GetString(data)); |
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| 119 | } |
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| 120 | } |
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| 121 | connected = false; |
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| 122 | ns.Close(); |
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| 123 | client.Close(); |
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| 124 | } |
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| 125 | |||
| 126 | public bool isConnected() { |
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| 127 | return connected; |
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| 128 | } |
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| 129 | |||
| 130 | public void stop() { |
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| 131 | connected = false; |
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| 132 | } |
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| 133 | |||
| 134 | public void sendData(CanPacket cp) { |
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| 135 | if (connected) { |
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| 136 | try { |
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| 137 | byte[] data = new byte[1024]; |
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| 138 | |||
| 139 | data = Encoding.ASCII.GetBytes(cp.toRawString()+"\n"); |
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| 140 | ns.Write(data, 0, data.Length); |
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| 141 | } |
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| 142 | catch (Exception) { |
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| 143 | connected = false; |
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| 144 | } |
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| 145 | } |
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| 146 | } |
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| 147 | |||
| 148 | public void sendDataDummy(string senddata) { |
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| 149 | if (connected) { |
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| 150 | try { |
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| 151 | byte[] data = new byte[1024]; |
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| 152 | |||
| 153 | data = Encoding.ASCII.GetBytes(senddata+"\n"); |
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| 154 | ns.Write(data, 0, data.Length); |
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| 155 | } |
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| 156 | catch (Exception) { |
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| 157 | connected = false; |
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| 158 | } |
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| 159 | } |
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| 160 | } |
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| 161 | |||
| 162 | } |