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diff --git a/src/lib/corelib/tools/joblimits.h b/src/lib/corelib/tools/joblimits.h
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+/****************************************************************************
+**
+** Copyright (C) 2018 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qbs.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** 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-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QBS_JOB_LIMITS_H
+#define QBS_JOB_LIMITS_H
+
+#include "qbs_export.h"
+
+#include <QtCore/qshareddata.h>
+
+QT_BEGIN_NAMESPACE
+class QString;
+QT_END_NAMESPACE
+
+namespace qbs {
+namespace Internal {
+class JobLimitPrivate;
+class JobLimitsPrivate;
+class PersistentPool;
+}
+
+class QBS_EXPORT JobLimit
+{
+public:
+    JobLimit();
+    JobLimit(const QString &pool, int limit);
+    JobLimit(const JobLimit &other);
+    JobLimit &operator=(const JobLimit &other);
+    ~JobLimit();
+
+    QString pool() const;
+    int limit() const;
+
+    void load(Internal::PersistentPool &pool);
+    void store(Internal::PersistentPool &pool);
+private:
+    QSharedDataPointer<Internal::JobLimitPrivate> d;
+};
+
+class QBS_EXPORT JobLimits
+{
+public:
+    JobLimits();
+    JobLimits(const JobLimits &other);
+    JobLimits &operator=(const JobLimits &other);
+    ~JobLimits();
+
+    void setJobLimit(const JobLimit &limit);
+    void setJobLimit(const QString &pool, int limit);
+    int getLimit(const QString &pool) const;
+    bool hasLimit(const QString &pool) const { return getLimit(pool) != -1; }
+    bool isEmpty() const;
+
+    int count() const;
+    JobLimit jobLimitAt(int i) const;
+
+    JobLimits &update(const JobLimits &other);
+
+    void load(Internal::PersistentPool &pool);
+    void store(Internal::PersistentPool &pool);
+private:
+    QSharedDataPointer<Internal::JobLimitsPrivate> d;
+};
+
+} // namespace qbs
+
+#endif // include guard