Add project files.

BLHX.Server.Game/Connection.cs

@@ -0,0 +1,49 @@
+using BLHX.Server.Common.Utils;
+using System.Net;
+using System.Net.Sockets;
+
+namespace BLHX.Server.Game
+{
+    public class Connection
+    {
+        readonly TcpClient tcpClient;
+        readonly Logger c;
+        readonly CancellationTokenSource cts = new();
+        readonly Task loopTask;
+        public IPEndPoint EndPoint => (IPEndPoint)tcpClient.Client.RemoteEndPoint!;
+
+        public Connection(TcpClient tcpClient)
+        {
+            this.tcpClient = tcpClient;
+            c = new(EndPoint.ToString());
+            loopTask = Task.Run(ClientLoop, cts.Token);
+        }
+
+        private async Task ClientLoop()
+        {
+            var ns = tcpClient.GetStream();
+            var buf = GC.AllocateUninitializedArray<byte>(8 << 13);
+            var pos = 0;
+
+            while (!cts.Token.IsCancellationRequested)
+            {
+                await Task.Delay(1);
+                int len = ns.Read(buf, pos, buf.Length - pos);
+                len += pos;
+                if (len == 0)
+                    continue;
+
+                c.Debug(BitConverter.ToString(buf[..len]).Replace("-", ""));
+            }
+        }
+
+        public void EndProtocol()
+        {
+            cts.Cancel();
+            loopTask.Wait();
+            loopTask.Dispose();
+
+            tcpClient.Dispose();
+        }
+    }
+}