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 /****************************************************************************
 **
 ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/legal
 **
 ** This file is part of the Qt Solutions component.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
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 ** modification, are permitted provided that the following conditions are
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 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
 **     of its contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
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 #ifndef QTLOCKEDFILE_H
 #define QTLOCKEDFILE_H
 
 #include <QFile>
 #ifdef Q_OS_WIN
 #include <QVector>
 #endif
 
 #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 QtLP_Private {
 
 class QT_QTLOCKEDFILE_EXPORT QtLockedFile : public QFile
 {
 public:
     enum LockMode { NoLock = 0, ReadLock, WriteLock };
 
     QtLockedFile();
     QtLockedFile(const QString &name);
     ~QtLockedFile() override;
 
     bool open(OpenMode mode) override;
 
     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