fix(dev-server): Improve socket performance

src/Uno.UI.RemoteControl.Messaging/Messages/Frame.cs

@@ -29,19 +29,6 @@ public Frame(short version, string scope, string name, string content)
 
 	public string Content { get; }
 
-	public static Frame Read(Stream stream)
-	{
-		using (var reader = new BinaryReader(stream, Encoding.UTF8))
-		{
-			var version = reader.ReadInt16();
-			var scope = reader.ReadString();
-			var name = reader.ReadString();
-			var content = reader.ReadString();
-
-			return new Frame(version, scope, name, content);
-		}
-	}
-
 	public static Frame Create<T>(short version, string scope, string name, T content)
 		=> new Frame(
 			version,
@@ -76,13 +63,27 @@ public bool TryGetContent<T>([NotNullWhen(true)] out T? content)
 		}
 	}
 
+	public static Frame Read(Stream stream)
+	{
+		using var reader = new BinaryReader(stream, Encoding.UTF8, leaveOpen: true);
+
+		var version = reader.ReadInt16();
+		var scope = reader.ReadString();
+		var name = reader.ReadString();
+		var content = reader.ReadString();
+
+		return new Frame(version, scope, name, content);
+	}
+
 	public void WriteTo(Stream stream)
 	{
-		var writer = new BinaryWriter(stream, Encoding.UTF8);
+		using var writer = new BinaryWriter(stream, Encoding.UTF8, leaveOpen: true);
 
 		writer.Write((short)Version);
 		writer.Write(Scope);
 		writer.Write(Name);
 		writer.Write(Content);
+
+		writer.Flush();
 	}
 }

src/Uno.UI.RemoteControl/Helpers/WebSocketHelper.cs

@@ -31,21 +31,17 @@ public static class WebSocketHelper
 					return null;
 				}
 
-				if (result.EndOfMessage)
+				if (result.Count != 0)
 				{
-					if (result.Count != 0)
-					{
-						await mem.WriteAsync(buff, 0, result.Count);
-					}
+					await mem.WriteAsync(buff, 0, result.Count, token);
+				}
 
+				if (result.EndOfMessage)
+				{
 					mem.Position = 0;
 
 					return Frame.Read(mem);
 				}
-				else
-				{
-					await mem.WriteAsync(buff, 0, result.Count);
-				}
 			}
 		}
 		finally
@@ -59,6 +55,6 @@ internal static async Task SendFrame(WebSocket webSocket, Frame frame, Cancellat
 		using var stream = manager.GetStream();
 		frame.WriteTo(stream);
 
-		await webSocket.SendAsync(new ArraySegment<byte>(stream.GetBuffer(), 0, (int)stream.Length), WebSocketMessageType.Binary, true, ct);
+		await webSocket.SendAsync(new ArraySegment<byte>(stream.GetBuffer(), 0, (int)stream.Position), WebSocketMessageType.Binary, true, ct);
 	}
 }