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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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.
**
****************************************************************************/
#pragma once
#include "utils_global.h"
#include <QtGlobal>
namespace Utils {
class QTCREATOR_UTILS_EXPORT Guard
{
Q_DISABLE_COPY(Guard)
public:
Guard();
~Guard();
bool isLocked() const;
// Prefer using GuardLocker when possible. These two methods are provided only for cases
// when locking and unlocking are done in separate methods, so that GuardLocker can't be
// used.
void lock();
void unlock();
private:
int m_lockCount = 0;
friend class GuardLocker;
};
class QTCREATOR_UTILS_EXPORT GuardLocker
{
Q_DISABLE_COPY(GuardLocker)
public:
GuardLocker(Guard &guard);
~GuardLocker();
private:
Guard &m_guard;
};
} // namespace Utils
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