Continues migration with DDS, Common

Lts/Common/LtsUtils/LtsUtilsCore/promise.h

@@ -0,0 +1,72 @@
+#pragma once
+
+
+
+
+#include <LtsUtilsCore/ltsutilscore_export.h>
+
+#include <QObject>
+#include <QVariant>
+
+#include <functional>
+
+
+class QTimer;
+
+
+namespace LtsUtils
+{
+typedef std::function<void(const QVariant &value)> RawResultFunction;
+typedef const RawResultFunction &ResultFunction;
+
+
+
+
+class LTSUTILSCORE_EXPORT Promise : public QObject
+{
+  Q_OBJECT
+
+public:
+  
+
+  Promise(const std::function<void(ResultFunction resolve, ResultFunction reject)> &function, QObject *parent = nullptr);
+
+  
+
+  void setFunction(const std::function<void(ResultFunction resolve, ResultFunction reject)> &function);
+
+  
+
+  void resolve(const QVariant &value = QVariant());
+
+  
+
+  void reject(const QVariant &value = QVariant());
+
+  
+
+  void setTimeout(int interval);
+
+  
+
+  Promise &resolved(ResultFunction resolveFn);
+
+  
+
+  Promise &rejected(ResultFunction rejectFn);
+
+
+private:
+  RawResultFunction m_resolveFn;
+  RawResultFunction m_rejectFn;
+  bool m_functionAlreadySet;
+  QTimer *m_timeout;
+  bool m_resultSet;
+  bool m_timeoutSet;
+
+
+private slots:
+  void slotTimeout();
+};
+
+}