61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
// Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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// SPDX-License-Identifier: BSD-3-Clause
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#ifndef QTLOCKEDFILE_H
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#define QTLOCKEDFILE_H
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#include <QFile>
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#ifdef Q_OS_WIN
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#include <QVector>
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#endif
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#if defined(Q_OS_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 QtLP_Private {
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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 open(OpenMode mode);
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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 wmutex;
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Qt::HANDLE rmutex;
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QVector<Qt::HANDLE> rmutexes;
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QString mutexname;
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Qt::HANDLE getMutexHandle(int idx, bool doCreate);
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bool waitMutex(Qt::HANDLE mutex, bool doBlock);
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#endif
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LockMode m_lock_mode;
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};
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}
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#endif
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