/****************************************************************************

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#ifndef QTLOCKEDFILE_H

#define QTLOCKEDFILE_H



#include <QtCore/QFile>

#ifdef Q_OS_WIN

#include <QtCore/QVector>

#endif



#if defined(Q_WS_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



class QT_QTLOCKEDFILE_EXPORT QtLockedFile : public QFile

{

public:

    enum LockMode { NoLock = 0, ReadLock, WriteLock };



    QtLockedFile();

    QtLockedFile(const QString &name);

    ~QtLockedFile();



    bool open(OpenMode mode);



    bool lock(LockMode mode, bool block = true);

    bool unlock();

    bool isLocked() const;

    LockMode lockMode() const;



private:

#ifdef Q_OS_WIN

    Qt::HANDLE wmutex;

    Qt::HANDLE rmutex;

    QVector<Qt::HANDLE> rmutexes;

    QString mutexname;



    Qt::HANDLE getMutexHandle(int idx, bool doCreate);

    bool waitMutex(Qt::HANDLE mutex, bool doBlock);



#endif

    LockMode m_lock_mode;

};



#endif