[connect] add package

src/main/hw/connect/desktop/DesktopConnection.hx

@@ -0,0 +1,76 @@
+package hw.connect.desktop;
+
+import cpp.vm.Thread;
+import haxe.Timer;
+import hw.connect.IConnection;
+import promhx.Deferred;
+import promhx.Promise;
+import protohx.Message;
+import sys.net.Host;
+import sys.net.Socket;
+
+class DesktopConnection<O:Message, I:Message> extends BaseConnection<O, I> {
+
+    private var host:String;
+    private var port:Int;
+    private var socket:Socket;
+    private var reader:Thread;
+
+    public function new(host:String, port:Int, inputFactory:Class<I>) {
+        super(inputFactory);
+        this.host = host;
+        this.port = port;
+        connected = false;
+        socket = new Socket();
+        socket.setFastSend(true);
+        socket.output.bigEndian = false;
+        socket.input.bigEndian = false;
+        sendHandler.connect(_send);
+    }
+
+    override public function connect():Promise<IConnection<O, I>> {
+        connectDeferred = new Deferred();
+        try {
+            if (connected) {
+                connectDeferred.resolve(this);
+            } else {
+                socket.connect(new Host(host), port);
+                connected = true;
+                reader = Thread.create(_read);
+                connectDeferred.resolve(this);
+                handler.emit(ConnectionEvent.CONNECTED);
+            }
+        } catch (error:Dynamic) {
+            handler.emit(ConnectionEvent.ERROR(error));
+            Timer.delay(function() connectDeferred.throwError(error), 1);
+        }
+        return connectDeferred.promise();
+    }
+
+    override public function disconnect():Void {
+        socket.close();
+        connected = false;
+        handler.emit(DISCONNECTED);
+    }
+
+    private function _read():Void {
+        try {
+            while (connected) {
+                socket.waitForRead();
+                var size = socket.input.readUInt16();
+                var data = socket.input.read(size);
+                var packet:I = PacketUtil.fromBytes(data, queue.packetClass);
+                receiveHandler.emit(packet);
+            }
+        } catch (error:Dynamic) {
+            handler.emit(ERROR(error));
+        }
+    }
+
+    private function _send(packet:O):Void {
+        var bytes = PacketUtil.toBytes(packet);
+        socket.output.writeUInt16(bytes.length);
+        socket.output.write(bytes);
+        socket.output.flush();
+    }
+}