feat: single app with local socket

singleapplicationmanager.h

@@ -0,0 +1,32 @@
+#ifndef SINGLEAPPLICATIONMANAGER_H
+#define SINGLEAPPLICATIONMANAGER_H
+
+#include <QObject>
+
+QT_BEGIN_NAMESPACE
+class QLocalServer;
+QT_END_NAMESPACE
+
+class SingleApplicationManager : public QObject
+{
+    Q_OBJECT
+public:
+    explicit SingleApplicationManager(QString applicationKey, QObject *parent = nullptr);
+
+    void createSingleInstance();
+    bool checkSingleInstance(QVariant data);
+
+signals:
+    void dataReached(QVariant data);
+
+private slots:
+    void on_localSocket_newConnection();
+
+private:
+
+    QString m_applicationKey;
+    QLocalServer * m_localServer;
+
+};
+
+#endif // SINGLEAPPLICATIONMANAGER_H