86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 David Faure <faure+bluesystems@kde.org>
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QLOCKFILE_H
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#define QLOCKFILE_H
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#include <QtCore/qstring.h>
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#include <QtCore/qscopedpointer.h>
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QT_BEGIN_NAMESPACE
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class QLockFilePrivate;
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class Q_CORE_EXPORT QLockFile
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{
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public:
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QLockFile(const QString &fileName);
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~QLockFile();
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bool lock();
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bool tryLock(int timeout = 0);
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void unlock();
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void setStaleLockTime(int);
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int staleLockTime() const;
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bool isLocked() const;
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bool getLockInfo(qint64 *pid, QString *hostname, QString *appname) const;
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bool removeStaleLockFile();
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enum LockError {
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NoError = 0,
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LockFailedError = 1,
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PermissionError = 2,
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UnknownError = 3
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};
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LockError error() const;
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protected:
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QScopedPointer<QLockFilePrivate> d_ptr;
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private:
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Q_DECLARE_PRIVATE(QLockFile)
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Q_DISABLE_COPY(QLockFile)
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};
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QT_END_NAMESPACE
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#endif // QLOCKFILE_H
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