Initial commit

Lts/Services/EffectShowClient/connection_handler_tcp.h

@@ -0,0 +1,59 @@
+/**
+  * Connection Handler for the RS232 serial connection to the sfm
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  * Created by Philipp Dassow, NLST, 2018-01-29
+  */
+
+#pragma once
+
+#include <QObject>
+#include <QTcpSocket>
+
+#include <LtsUtilsCore/sfm_bytemessage_converter.h>
+#include "logger.h"
+
+
+class QTimer;
+
+namespace EffectShowClient
+{
+
+class ConnectionHandlerTcp : public QObject
+{
+  Q_OBJECT
+
+public:
+  explicit ConnectionHandlerTcp(QObject *parent = nullptr);
+  ~ConnectionHandlerTcp();
+
+  bool init();
+  bool send(const QByteArray &message);
+  bool open();
+  void close();
+
+  bool isOpen() const;
+
+signals:
+  /**
+   * @brief received emits a byte pair with command and payload byte when a available. It is guaranteed that there will be 2 bytes
+   * @param ba is a byte pair, with command 1st and payload 2nd.
+   */
+  void received(const QByteArray &ba);
+  void connectedToSerialConverter();
+
+private slots:
+  void read();
+  void handleError(QAbstractSocket::SocketError error);
+
+
+private:
+  bool isValidCommandByte(const unsigned char command);
+  bool isValidPayloadByte(const unsigned char payload);
+  QTcpSocket *m_socket;
+  QTimer     *m_timer;
+  QByteArray   m_currentDataRead;
+  NGL::INGLLogger &m_logger;
+};
+} // namespace EffectShowClient