File indexing completed on 2024-05-05 16:13:55

 /*
     This file is part of the KDE project
     SPDX-FileCopyrightText: 2009 Tobias Koenig <tokoe@kde.org>
     SPDX-FileCopyrightText: 2014 David Faure <faure@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef TRASHSIZECACHE_H
 #define TRASHSIZECACHE_H
 
 #include <QString>
 
 #include <KConfig>
 
 class QFileInfo;
 
 /**
  * @short A class that encapsulates the directory size cache.
  *
  * The directory size cache is used to speed up the determination of the trash size.
  *
  * Since version 1.0, https://specifications.freedesktop.org/trash-spec/trashspec-latest.html specifies this cache
  * as a standard way to cache this information.
  *
  */
 class TrashSizeCache
 {
 public:
     struct SizeAndModTime {
         qint64 size;
         qint64 mtime;
     };
 
     /**
      * Creates a new trash size cache object for the given trash @p path.
      */
     explicit TrashSizeCache(const QString &path);
 
     /**
      * Adds a directory to the cache.
      * @param directoryName fileId of the directory
      * @param directorySize size in bytes
      */
     void add(const QString &directoryName, qint64 directorySize);
 
     /**
      * Removes a directory from the cache.
      */
     void remove(const QString &directoryName);
 
     /**
      * Renames a directory in the cache.
      */
     void rename(const QString &oldDirectoryName, const QString &newDirectoryName);
 
     /**
      * Sets the trash size to 0 bytes.
      */
     void clear();
 
     /**
      * Calculates and returns the current trash size.
      */
     qint64 calculateSize();
 
     /**
      * Calculates and returns the current trash size and its last modification date
      */
     SizeAndModTime calculateSizeAndLatestModDate();
 
     /**
      * Returns the space occupied by directories in trash and their latest modification dates
      */
     QHash<QByteArray, TrashSizeCache::SizeAndModTime> readDirCache();
 
 private:
     enum ScanFilesInTrashOption { CheckModificationTime, DonTcheckModificationTime };
     TrashSizeCache::SizeAndModTime scanFilesInTrash(ScanFilesInTrashOption checkDateTime = CheckModificationTime);
 
     QString mTrashSizeCachePath;
     QString mTrashPath;
     QFileInfo getTrashFileInfo(const QString &fileName);
 };
 
 #endif