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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include <QFile>
#if defined(Q_OS_WIN)
# if !defined(QT_QTLOCKEDFILE_EXPORT) && !defined(QT_QTLOCKEDFILE_IMPORT)
# define QT_QTLOCKEDFILE_EXPORT
# elif defined(QT_QTLOCKEDFILE_IMPORT)
# if defined(QT_QTLOCKEDFILE_EXPORT)
# undef QT_QTLOCKEDFILE_EXPORT
# endif
# define QT_QTLOCKEDFILE_EXPORT __declspec(dllimport)
# elif defined(QT_QTLOCKEDFILE_EXPORT)
# undef QT_QTLOCKEDFILE_EXPORT
# define QT_QTLOCKEDFILE_EXPORT __declspec(dllexport)
# endif
#else
# define QT_QTLOCKEDFILE_EXPORT
#endif
namespace SharedTools {
class QT_QTLOCKEDFILE_EXPORT QtLockedFile : public QFile
{
public:
enum LockMode { NoLock = 0, ReadLock, WriteLock };
QtLockedFile();
QtLockedFile(const QString &name);
~QtLockedFile();
bool lock(LockMode mode, bool block = true);
bool unlock();
bool isLocked() const;
LockMode lockMode() const;
private:
#ifdef Q_OS_WIN
Qt::HANDLE m_semaphore_hnd;
Qt::HANDLE m_mutex_hnd;
#endif
LockMode m_lock_mode;
};
} // namespace SharedTools
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