feat : 에코 서버 / 클라이언트 기능 추가 작업

ClientTester/EchoClientTester/EchoDummyService/DummyClients.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics;
+using ClientTester.Packet;
 using LiteNetLib;
 using LiteNetLib.Utils;
 using Serilog;
@@ -7,82 +8,112 @@ namespace ClientTester.EchoDummyService;
 
 public class DummyClients
 {
-    public NetManager Manager;
-    public EventBasedNetListener Listener;
-    public NetPeer? Peer;
-    public int ClientId;
+    public NetManager manager;
+    public EventBasedNetListener listener;
+    public NetPeer? peer;
+    public int clientId;
 
     // seq → 송신 타임스탬프 (Stopwatch tick)
-    private readonly Dictionary<int, long> _pendingPings = new();
-    private int _seqNumber;
+    private readonly Dictionary<int, long> pendingPings = new();
+    private int seqNumber;
 
     // 통계
-    public int SentCount;
-    public int ReceivedCount;
-    public double LastRttMs;
-    public double TotalRttMs;
-    public int RttCount;
+    public int SentCount
+    {
+        set;
+        get;
+    }
+    public int ReceivedCount
+    {
+        set;
+        get;
+    }
+    public double LastRttMs
+    {
+        set;
+        get;
+    }
+    public double TotalRttMs
+    {
+        set;
+        get;
+    }
+    public int RttCount
+    {
+        set;
+        get;
+    }
 
     public DummyClients(int clientId, string ip, int port, string key)
     {
-        ClientId = clientId;
-        Listener = new EventBasedNetListener();
-        Manager  = new NetManager(Listener);
+        this.clientId = clientId;
+        listener = new EventBasedNetListener();
+        manager  = new NetManager(listener);
 
-        Listener.PeerConnectedEvent += peer =>
+        listener.PeerConnectedEvent += netPeer =>
         {
-            Peer = peer;
-            Log.Information("[Client {ClientId:00}] 연결됨", ClientId);
+            peer = netPeer;
+            Log.Information("[Client {ClientId:00}] 연결됨", this.clientId);
         };
 
-        Listener.NetworkReceiveEvent += (peer, reader, channel, deliveryMethod) =>
+        listener.NetworkReceiveEvent += (peer, reader, channel, deliveryMethod) =>
         {
-            var msg = reader.GetString();
+            string? msg = reader.GetString();
 
-            // "ack:seq:{seqNum}" 파싱
-            var parts = msg.Split(':');
-            if (parts.Length == 3 && parts[0] == "ack" && parts[1] == "seq"
-                && int.TryParse(parts[2], out int seq)
-                && _pendingPings.TryGetValue(seq, out long sentTick))
+            string[] parts = msg.Split(':');
+            if (parts.Length == 3 && parts[0] == "ack" && parts[1] == "seq" && int.TryParse(parts[2], out int seq) && pendingPings.TryGetValue(seq, out long sentTick))
             {
-                double rttMs = (Stopwatch.GetTimestamp() - sentTick)
-                               * 1000.0 / Stopwatch.Frequency;
+                double rttMs = (Stopwatch.GetTimestamp() - sentTick) * 1000.0 / Stopwatch.Frequency;
                 LastRttMs  = rttMs;
                 TotalRttMs += rttMs;
                 RttCount++;
-                _pendingPings.Remove(seq);
+                pendingPings.Remove(seq);
             }
 
             ReceivedCount++;
             reader.Recycle();
         };
 
-        Listener.PeerDisconnectedEvent += (peer, info) =>
+        listener.PeerDisconnectedEvent += (peer, info) =>
         {
-            Log.Warning("[Client {ClientId:00}] 연결 끊김: {Reason}", ClientId, info.Reason);
-            Peer = null;
+            Log.Warning("[Client {ClientId:00}] 연결 끊김: {Reason}", this.clientId, info.Reason);
+            this.peer = null;
         };
 
-        Manager.Start();
-        Manager.Connect(ip, port, key);
+        manager.Start();
+        manager.Connect(ip, port, key);
     }
 
     public void SendPing()
     {
-        if (Peer is null) return;
+        if (peer == null)
+        {
+            return;
+        }
 
-        int seq = _seqNumber++;
-        _pendingPings[seq] = Stopwatch.GetTimestamp();
+        int seq = seqNumber++;
+        pendingPings[seq] = Stopwatch.GetTimestamp();
 
-        var writer = new NetDataWriter();
-        writer.Put($"seq:{seq}");
-        Peer.Send(writer, DeliveryMethod.ReliableOrdered);
+        NetDataWriter writer = new NetDataWriter();
+        PacketHeader packetHeader = new PacketHeader();
+        packetHeader.Code = 0;
+        packetHeader.BodyLength = $"seq:{seq}".Length;
+        writer.Put((short)packetHeader.Code);
+        writer.Put((short)packetHeader.BodyLength);
+        writer.Put($"Echo seq:{seq}");
+        peer.Send(writer, DeliveryMethod.ReliableOrdered);
         SentCount++;
     }
 
     public double AvgRttMs => RttCount > 0 ? TotalRttMs / RttCount : 0.0;
 
-    public void PollEvents() => Manager.PollEvents();
+    public void PollEvents()
+    {
+        manager.PollEvents();
+    }
 
-    public void Stop() => Manager.Stop();
+    public void Stop()
+    {
+        manager.Stop();
+    }
 }