コード例 #1
0
        public static void Main(string[] args)
        {
            Initialize();

            WriteLine("What is your name?", C64Colors.LightBlue);
            string       Name = Console.In.ReadLine();
            BinaryOutput Payload;

            WriteLine("Hello " + Name + ".", C64Colors.LightBlue);
            WriteLine("Strings entered below will be seen by everybody running the application.", C64Colors.LightBlue);
            WriteLine("Enter an empty string to close the application.", C64Colors.LightBlue);
            WriteLine(new string('-', ConsoleWidth), C64Colors.LightBlue);

            using (MqttConnection MqttConnection = ConnectToMqttServer("iot.eclipse.org", true, string.Empty, string.Empty))
            {
                WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);

                MqttConnection.TrustServer = true;

                MqttConnection.OnConnectionError += (sender, ex) =>
                {
                    WriteLine("Unable to connect:", C64Colors.Red);
                };

                MqttConnection.OnError += (sender, ex) =>
                {
                    WriteLine(ex.Message, C64Colors.Red);
                };

                MqttConnection.OnStateChanged += (sender, state) =>
                {
                    WriteLine("<" + MqttConnection.State.ToString() + ">", C64Colors.LightGreen);

                    if (state == MqttState.Connected)
                    {
                        MqttConnection.SUBSCRIBE("RetroSharp/Examples/Networking/MultiUserChat");

                        Payload = new BinaryOutput();
                        Payload.WriteString(MqttConnection.ClientId);
                        Payload.WriteString(Name);
                        Payload.WriteByte(0);

                        MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserChat", MqttQualityOfService.AtLeastOne, false, Payload);
                    }
                };

                MqttConnection.OnContentReceived += (sender, Content) =>
                {
                    string ClientId = Content.DataInput.ReadString();
                    if (ClientId != sender.ClientId)
                    {
                        string Author  = Content.DataInput.ReadString();
                        byte   Command = Content.DataInput.ReadByte();

                        switch (Command)
                        {
                        case 0:
                            WriteLine("<" + Author + " enters the room.>", C64Colors.LightGreen);
                            break;

                        case 1:
                            string Text = Content.DataInput.ReadString();
                            WriteLine(Author + ": " + Text, C64Colors.LightBlue);
                            break;

                        case 2:
                            WriteLine("<" + Author + " left the room.>", C64Colors.LightGreen);
                            break;
                        }
                    }
                };

                while (true)
                {
                    string s = Console.In.ReadLine();
                    if (string.IsNullOrEmpty(s))
                    {
                        break;
                    }

                    Payload = new BinaryOutput();
                    Payload.WriteString(MqttConnection.ClientId);
                    Payload.WriteString(Name);
                    Payload.WriteByte(1);
                    Payload.WriteString(s);

                    MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserChat", MqttQualityOfService.AtLeastOne, false, Payload);
                }

                MqttConnection.UNSUBSCRIBE("RetroSharp/Examples/Networking/MultiUserChat");

                int PacketIdentifier        = 0;
                ManualResetEvent Terminated = new ManualResetEvent(false);

                MqttConnection.OnPublished += (sender, e) =>
                {
                    if (PacketIdentifier == e)
                    {
                        Terminated.Set();
                    }
                };

                Payload = new BinaryOutput();
                Payload.WriteString(MqttConnection.ClientId);
                Payload.WriteString(Name);
                Payload.WriteByte(2);

                PacketIdentifier = MqttConnection.PUBLISH("RetroSharp/Examples/Networking/MultiUserChat", MqttQualityOfService.AtLeastOne, false, Payload);

                Terminated.WaitOne(5000);
            }

            Terminate();
        }