We need to keep sock alive when data transferred

proxyobject.cpp

@@ -21,7 +21,8 @@ ProxyObject::ProxyObject(QObject *parent)
 	connect (engine, &zp_net_Engine::evt_NewClientConnected, this, &ProxyObject::slot_NewClientConnected,Qt::QueuedConnection );
 	connect (engine, &zp_net_Engine::evt_ClientDisconnected, this, &ProxyObject::slot_ClientDisconnected ,Qt::QueuedConnection);
 	connect (engine, &zp_net_Engine::evt_Data_recieved, this, &ProxyObject::slot_Data_recieved ,Qt::QueuedConnection);
-	initEngine();
+    connect (engine, &zp_net_Engine::evt_Data_transferred, this, &ProxyObject::slot_Data_transferred ,Qt::QueuedConnection);
+    initEngine();
 	m_nTimerRefresh = startTimer(1000);
 }
 void ProxyObject::slot_Message(QObject * pSource,QString message )
@@ -208,7 +209,10 @@ void ProxyObject::slot_Data_recieved(QObject *  clientHandle,QByteArray  datablo
 		engine->SendDataToClient(m_hash_Outer2Inner[clientHandle],datablock);
     else if (pending_kick.contains(clientHandle)==false)
         pending_data[clientHandle].push_back(datablock);
-    //Keep timestamp fresh
+}
+void ProxyObject::slot_Data_transferred(QObject *  clientHandle,qint64 /*bytes sent*/, quint64 extraData)
+{
+   //Keep timestamp fresh
     if (pending_kick.contains(clientHandle))
         pending_kick[clientHandle] = QDateTime::currentDateTime();
 }

proxyobject.h

@@ -39,6 +39,8 @@ public slots:
 	void slot_ClientDisconnected(QObject * /*clientHandle*/,quint64);
 	//some data arrival
 	void slot_Data_recieved(QObject *  /*clientHandle*/,QByteArray  /*datablock*/ ,quint64);
+    //a block of data has been successfuly sent
+    void slot_Data_transferred(QObject *   /*clientHandle*/,qint64 /*bytes sent*/, quint64 extraData);
 };
 
 #endif // PROXYOBJECT_H