static members in dll encounted access problem when being ++ opertated

qtvplugin_geomarker/qtvplugin_geomarker.cpp

@@ -26,6 +26,7 @@ qtvplugin_geomarker::qtvplugin_geomarker(QWidget *parent) :
 	m_nInstance = 0;
 	ui->setupUi(this);
 	m_pVi = 0;
+	m_nDivideTimer = 0;
 	m_bVisible = true;
 	m_pScene = new QTVP_GEOMARKER::geoGraphicsScene(this);
 	m_pScene->setBackgroundBrush(Qt::NoBrush);

qtvplugin_geomarker/qtvplugin_geomarker.h

@@ -82,6 +82,7 @@ private:
 	int m_nTimerID_refreshUI;
 	int m_nTimerID_refreshMap;
 	int m_nTimerID_levelQueue;
+	quint64 m_nDivideTimer;
 	bool m_bNeedRefresh;
 	bool m_bNeedUpdateView;
 

qtvplugin_geomarker/qtvplugin_geomarker_uimethods.cpp

@@ -73,14 +73,14 @@ void		qtvplugin_geomarker::timerEvent(QTimerEvent * e)
 	}
 	else if (m_nTimerID_levelQueue == e->timerId())
 	{
-		static int dvv = 0;
 		killTimer(m_nTimerID_levelQueue);
+		++m_nDivideTimer;
 		if (true==m_pScene->deal_level_queue())
-			scheduleUpdateMap();
-		if (++dvv %20 == 0)
+			m_pVi->UpdateWindow();
+		else if (m_nDivideTimer % 20 == 0)
 		{
 			if (m_pScene->progress_queue()<0.999)
-				scheduleUpdateMap();
+				m_pVi->UpdateWindow();
 		}
 		m_nTimerID_levelQueue = startTimer(100);
 	}