preferences: create function for force saving preferences

Signed-off-by: ioanachelaru <[email protected]>

src/preferences.cpp

@@ -317,6 +317,7 @@ Preferences::Preferences(QWidget *parent) :
 			m_colorEditor->setCurrentStylesheet(filePath);
 		} else {
 			m_colorEditor->setCurrentStylesheet(stylesheet);
+			forceSavePreferences();
 		}
 		requestRestart();
 	});
@@ -513,6 +514,16 @@ void Preferences::setShow_plot_fps(bool newShow_plot_fps)
 	m_show_plot_fps = newShow_plot_fps;
 }
 
+void Preferences::forceSavePreferences()
+{
+	// force saving of the ini file as the new Scopy process
+	// when restarted will start before scopy closes. A race condition
+	// will appear on who gets to read/write to the .ini file first
+	QString preference_ini_file = getPreferenceIniFile();
+	QSettings settings(preference_ini_file, QSettings::IniFormat);
+	pref_api->save(settings);
+}
+
 bool Preferences::getDigital_decoders_enabled() const
 {
 	return digital_decoders_enabled;

src/preferences.h

@@ -170,6 +170,9 @@ private Q_SLOTS:
 
 	void resetScopy();
 
+private:
+	void forceSavePreferences();
+
 private:
 	Ui::Preferences *ui;
 	QString preferencesFileName;