LibUv Networking (#65)

Projects/Server/LibUv/Internal/UvTcpHandle.cs

@@ -0,0 +1,72 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
+using System.Net;
+using System.Runtime.InteropServices;
+
+namespace Libuv.Internal
+{
+  public class UvTcpHandle : UvStreamHandle
+  {
+    public UvTcpHandle(ILibuvTrace logger) : base(logger)
+    {
+    }
+
+    public void Init(UvLoopHandle loop, Action<Action<IntPtr>, IntPtr> queueCloseHandle)
+    {
+      CreateHandle(
+        loop.Libuv,
+        loop.ThreadId,
+        loop.Libuv.handle_size(LibuvFunctions.HandleType.TCP), queueCloseHandle);
+
+      _uv.tcp_init(loop, this);
+    }
+
+    public void Open(IntPtr fileDescriptor)
+    {
+      _uv.tcp_open(this, fileDescriptor);
+    }
+
+    public void Bind(IPEndPoint endPoint)
+    {
+      var addressText = endPoint.Address.ToString();
+
+      _uv.ip4_addr(addressText, endPoint.Port, out var addr, out var error1);
+
+      if (error1 != null)
+      {
+        _uv.ip6_addr(addressText, endPoint.Port, out addr, out var error2);
+        if (error2 != null) throw error1;
+
+        if (endPoint.Address.ScopeId != addr.ScopeId)
+          // IPAddress.ScopeId cannot be less than 0 or greater than 0xFFFFFFFF
+          // https://msdn.microsoft.com/en-us/library/system.net.ipaddress.scopeid(v=vs.110).aspx
+          addr.ScopeId = (uint)endPoint.Address.ScopeId;
+      }
+
+      _uv.tcp_bind(this, ref addr, 0);
+    }
+
+    public IPEndPoint GetPeerIPEndPoint()
+    {
+      int namelen = Marshal.SizeOf<SockAddr>();
+      _uv.tcp_getpeername(this, out var socketAddress, ref namelen);
+
+      return socketAddress.GetIPEndPoint();
+    }
+
+    public IPEndPoint GetSockIPEndPoint()
+    {
+      int namelen = Marshal.SizeOf<SockAddr>();
+      _uv.tcp_getsockname(this, out var socketAddress, ref namelen);
+
+      return socketAddress.GetIPEndPoint();
+    }
+
+    public void NoDelay(bool enable)
+    {
+      _uv.tcp_nodelay(this, enable);
+    }
+  }
+}