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diff --git a/src/libs/kdtools/runoncechecker.h b/src/libs/kdtools/runoncechecker.h
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+++ b/src/libs/kdtools/runoncechecker.h
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+/****************************************************************************
+**
+** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef RUNONCECHECKER_H
+#define RUNONCECHECKER_H
+
+#include "lockfile.h"
+
+#include <QString>
+
+class KDTOOLS_EXPORT RunOnceChecker
+{
+    Q_DISABLE_COPY(RunOnceChecker)
+
+public:
+    enum struct ConditionFlag {
+        Lockfile = 0x01,
+        ProcessList = 0x02
+    };
+    Q_DECLARE_FLAGS(ConditionFlags, ConditionFlag)
+
+    explicit RunOnceChecker(const QString &filename = QString());
+    ~RunOnceChecker();
+
+    bool isRunning(RunOnceChecker::ConditionFlags flags);
+
+private:
+    KDUpdater::LockFile m_lockfile;
+};
+
+#endif // RUNONCECHECKER_H