39 lines
1.5 KiB
C#
39 lines
1.5 KiB
C#
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using System;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Timers;
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namespace HeartbeatSender{
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public class heartbeatSender
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{
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private readonly UdpClient udpClient;
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private readonly IPEndPoint remoteEndPoint;
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private readonly System.Timers.Timer heartbeatTimer;
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public IPEndPoint RemoteEndPoint => remoteEndPoint;
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public heartbeatSender(string targetIp, int targetPort, int intervalMilliseconds = 3000)
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{
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udpClient = new UdpClient();
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// 設置 IP 和 PORT
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remoteEndPoint = new IPEndPoint(IPAddress.Parse(targetIp), targetPort);
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heartbeatTimer = new System.Timers.Timer(intervalMilliseconds);
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heartbeatTimer.Elapsed += SendHeartbeat;
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heartbeatTimer.AutoReset = true;
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}
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private void SendHeartbeat(object sender, ElapsedEventArgs e)
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{
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try
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{
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string heartbeatMessage = "HEARTBEAT";
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byte[] data = Encoding.UTF8.GetBytes(heartbeatMessage);
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udpClient.Send(data, data.Length, remoteEndPoint);
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Console.WriteLine($"Heartbeat sent to {remoteEndPoint.Address}:{remoteEndPoint.Port}");
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}
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catch (Exception ex)
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{
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Console.WriteLine($"Error sending heartbeat: {ex.Message}");
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}
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}
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public void Start() => heartbeatTimer.Start();
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public void Stop() => heartbeatTimer.Stop();
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}
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}
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