Add basic (empty) TCP lib

Capy64/Runtime/Libraries/TCP.cs

@@ -0,0 +1,74 @@
+// This file is part of Capy64 - https://github.com/Ale32bit/Capy64
+// Copyright 2023 Alessandro "AlexDevs" Proto
+//
+// Licensed under the Apache License, Version 2.0 (the "License").
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+using Capy64.API;
+using KeraLua;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+
+namespace Capy64.Runtime.Libraries;
+
+public class TCP : IComponent
+{
+    private static IGame _game;
+    public TCP(IGame game)
+    {
+        _game = game;
+    }
+
+    private static LuaRegister[] TCPLib = new LuaRegister[]
+    {
+        new()
+        {
+            name = "connectAsync",
+            function = L_Connect,
+        },
+        new(),
+    };
+
+    public void LuaInit(Lua L)
+    {
+        L.RequireF("tcp", OpenLib, false);
+    }
+
+    public int OpenLib(nint state)
+    {
+        var L = Lua.FromIntPtr(state);
+        L.NewLib(TCPLib);
+        return 0;
+    }
+
+    private static int L_Connect(nint state)
+    {
+        var L = Lua.FromIntPtr(state);
+
+        var host = L.CheckString(1);
+        var port = (int)L.CheckInteger(2);
+        L.ArgumentCheck(port >= 0 && port <= 0xffff, 2, "port must be in range 0-65535");
+
+        var client = new TcpClient(host, port);
+
+        var task = client.ConnectAsync(host, port);
+        task.ContinueWith(t => {
+            if(client.Connected)
+            {
+                // todo: make logic do stuff
+            }
+        });
+
+        return 0;
+    }
+
+}