forked from qt-creator/qt-creator
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Qt Software Information (qt-info@nokia.com)
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**
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**
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** Non-Open Source Usage
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**
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** Licensees may use this file in accordance with the Qt Beta Version
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** License Agreement, Agreement version 2.2 provided with the Software or,
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** alternatively, in accordance with the terms contained in a written
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** agreement between you and Nokia.
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**
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** GNU General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the packaging
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** of this file. Please review the following information to ensure GNU
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** General Public Licensing requirements will be met:
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**
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** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt GPL Exception
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** version 1.3, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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#ifndef QTLOCKEDFILE_H
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#define QTLOCKEDFILE_H
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#include <QtCore/QFile>
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#if defined(Q_WS_WIN)
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# if !defined(QT_QTLOCKEDFILE_EXPORT) && !defined(QT_QTLOCKEDFILE_IMPORT)
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# define QT_QTLOCKEDFILE_EXPORT
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# elif defined(QT_QTLOCKEDFILE_IMPORT)
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# if defined(QT_QTLOCKEDFILE_EXPORT)
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# undef QT_QTLOCKEDFILE_EXPORT
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# endif
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# define QT_QTLOCKEDFILE_EXPORT __declspec(dllimport)
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# elif defined(QT_QTLOCKEDFILE_EXPORT)
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# undef QT_QTLOCKEDFILE_EXPORT
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# define QT_QTLOCKEDFILE_EXPORT __declspec(dllexport)
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# endif
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#else
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# define QT_QTLOCKEDFILE_EXPORT
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#endif
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namespace SharedTools {
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class QT_QTLOCKEDFILE_EXPORT QtLockedFile : public QFile
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{
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public:
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enum LockMode { NoLock = 0, ReadLock, WriteLock };
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QtLockedFile();
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QtLockedFile(const QString &name);
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~QtLockedFile();
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bool lock(LockMode mode, bool block = true);
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bool unlock();
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bool isLocked() const;
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LockMode lockMode() const;
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private:
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#ifdef Q_OS_WIN
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Qt::HANDLE m_semaphore_hnd;
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Qt::HANDLE m_mutex_hnd;
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#endif
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LockMode m_lock_mode;
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};
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} // namespace SharedTools
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#endif // QTLOCKEDFILE_H
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