File indexing completed on 2025-04-27 03:58:06

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2012-01-29
  * Description : Intra-process file i/o lock
  *
  * SPDX-FileCopyrightText: 2012 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #ifndef DIGIKAM_FILE_READ_WRITE_LOCK_H
 #define DIGIKAM_FILE_READ_WRITE_LOCK_H
 
 // Qt includes
 
 #include <QString>
 #include <QTemporaryFile>
 
 // Local includes
 
 #include "digikam_export.h"
 
 namespace Digikam
 {
 
 class FileReadWriteLockPriv;
 
 class DIGIKAM_EXPORT FileReadWriteLockKey
 {
 public:
 
     explicit FileReadWriteLockKey(const QString& filePath);
     ~FileReadWriteLockKey();
 
     void lockForRead();
     void lockForWrite();
     bool tryLockForRead();
     bool tryLockForRead(int timeout);
     bool tryLockForWrite();
     bool tryLockForWrite(int timeout);
     void unlock();
 
 private:
 
     FileReadWriteLockPriv* d;
 };
 
 // ----------------------------------------------------------------------
 
 class DIGIKAM_EXPORT FileReadLocker
 {
 public:
 
     explicit FileReadLocker(const QString& filePath);
     ~FileReadLocker();
 
 private:
 
     FileReadWriteLockPriv* d;
 };
 
 // ----------------------------------------------------------------------
 
 class DIGIKAM_EXPORT FileWriteLocker
 {
 public:
 
     explicit FileWriteLocker(const QString& filePath);
     ~FileWriteLocker();
 
 private:
 
     FileReadWriteLockPriv* d;
 };
 
 // ----------------------------------------------------------------------
 
 class DIGIKAM_EXPORT SafeTemporaryFile : public QTemporaryFile
 {
     Q_OBJECT
 
 public:
 
     explicit SafeTemporaryFile(const QString& templ);
     SafeTemporaryFile();
 
     bool open();
 
     QString safeFilePath() const;
 
 protected:
 
     bool open(QIODevice::OpenMode) override;
 
 private:
 
     // Disable
     SafeTemporaryFile(QObject*) = delete;
 
     QString m_templ;
 };
 
 } // namespace Digikam
 
 #endif // DIGIKAM_FILE_READ_WRITE_LOCK_H