Added QObject parents

src/modules/dns-client/includes/dns-client/QDnsClient.h

                 quint16 port;
             };
 
-            explicit QDnsClient(const QHostAddress& host, quint16 port = 53);
+            explicit QDnsClient(const QHostAddress& host, quint16 port = 53, QObject* parent = nullptr);
 
             const QHostAddress &getHost() const;
 

src/modules/dns-client/includes/dns-client/QDnsTcpClient.h

         {
             Q_OBJECT
         public:
-            explicit QDnsTcpClient(const QHostAddress &host, quint16 port = 53);
+            explicit QDnsTcpClient(const QHostAddress &host, quint16 port = 53, QObject* parent = nullptr);
 
         public slots:
             void connectToHost() override;

src/modules/dns-client/includes/dns-client/QDnsUdpClient.h

         {
             Q_OBJECT
         public:
-            explicit QDnsUdpClient(const QHostAddress& host, quint16 port = 53);
+            explicit QDnsUdpClient(const QHostAddress& host, quint16 port = 53, QObject* parent = nullptr);
 
         public slots:
             void connectToHost() override;

src/modules/dns-client/src/QDnsClient.cpp

 {
     namespace Client
     {
-        QDnsClient::QDnsClient(const QHostAddress &host, quint16 port)
-            : m_host(host)
+        QDnsClient::QDnsClient(const QHostAddress &host, quint16 port, QObject* parent)
+            : QObject(parent)
+            , m_host(host)
             , m_port(port)
             , m_queryTimeout(5000)
             , m_state(ClientState::Disconnected)

src/modules/dns-client/src/QDnsTcpClient.cpp

 {
     namespace Client
     {
-        QDnsTcpClient::QDnsTcpClient(const QHostAddress &host, quint16 port)
-            : QDnsClient(host, port)
+        QDnsTcpClient::QDnsTcpClient(const QHostAddress &host, quint16 port, QObject* parent)
+            : QDnsClient(host, port, parent)
             , m_socket(new QTcpSocket(this))
             , m_size(0)
         {

src/modules/dns-client/src/QDnsUdpClient.cpp

 {
     namespace Client
     {
-        QDnsUdpClient::QDnsUdpClient(const QHostAddress &host, quint16 port)
-            : QDnsClient(host, port)
+        QDnsUdpClient::QDnsUdpClient(const QHostAddress &host, quint16 port, QObject* parent)
+            : QDnsClient(host, port, parent)
             , m_socket(new QUdpSocket(this))
         {
             connect(m_socket, &QUdpSocket::readyRead, this, &QDnsUdpClient::onReadyRead);

src/modules/dns-server/includes/dns-server/QDnsServer.h

                 std::function<void(SendAnswerParams)> sendAnswer;
             };
 
+            explicit QDnsServer(QObject* parent = nullptr);
+
         signals:
             void onRequest(OnRequestParams params); // TODO add onError
 

src/modules/dns-server/includes/dns-server/QDnsTcpServer.h

         {
             Q_OBJECT
         public:
-            QDnsTcpServer();
+            explicit QDnsTcpServer(QObject* parent = nullptr);
 
         public slots:
             bool start(const QHostAddress& host, quint16 port) override;

src/modules/dns-server/includes/dns-server/QDnsUdpServer.h

         {
             Q_OBJECT
         public:
-            QDnsUdpServer();
+            explicit QDnsUdpServer(QObject* parent = nullptr);
 
         public slots:
             bool start(const QHostAddress& host, quint16 port) override;

src/modules/dns-server/src/QDnsServer.cpp

 {
     namespace Server
     {
+        QDnsServer::QDnsServer(QObject* parent)
+            : QObject(parent)
+        {
+        }
     }
 }

src/modules/dns-server/src/QDnsTcpServer.cpp

 {
     namespace Server
     {
-        QDnsTcpServer::QDnsTcpServer()
-            : m_socket(new QTcpServer(this))
+        QDnsTcpServer::QDnsTcpServer(QObject* parent)
+            : QDnsServer(parent)
+            , m_socket(new QTcpServer(this))
         {
             connect(m_socket, &QTcpServer::newConnection, this, &QDnsTcpServer::onNewConnection);
         }

src/modules/dns-server/src/QDnsUdpServer.cpp

 {
     namespace Server
     {
-        QDnsUdpServer::QDnsUdpServer()
-            : m_socket(new QUdpSocket(this))
+        QDnsUdpServer::QDnsUdpServer(QObject* parent)
+            : QDnsServer(parent)
+            , m_socket(new QUdpSocket(this))
         {
             connect(m_socket, &QUdpSocket::readyRead, this, &QDnsUdpServer::onSocketReadyRead);
         }