mirror of
https://github.com/keepassxreboot/keepassxc.git
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7ac292e09b
* Add saving mutex to database class to prevent re-entrant saving * Prevent saving multiple times to the same file if the database is not marked as modified * Prevent locking the database while saving. This also prevents closing the application and database tab while saving. * FileWatcher: only perform async checksum calculations when triggered by timer (prevents random GUI freezes) * Re-attempt database lock when requested during save operation * Prevent database tabs from closing before all databases are locked on quit
112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
/*
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* Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 or (at your option)
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* version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KEEPASSXC_FILEWATCHER_H
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#define KEEPASSXC_FILEWATCHER_H
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#include <QFileSystemWatcher>
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#include <QSet>
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#include <QTimer>
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#include <QVariant>
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class FileWatcher : public QObject
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{
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Q_OBJECT
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public:
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explicit FileWatcher(QObject* parent = nullptr);
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~FileWatcher() override;
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void start(const QString& path, int checksumIntervalSeconds = 0, int checksumSizeKibibytes = -1);
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void stop();
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bool hasSameFileChecksum();
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signals:
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void fileChanged();
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public slots:
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void pause();
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void resume();
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private slots:
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void checkFileChanged();
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private:
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QByteArray calculateChecksum();
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bool shouldIgnoreChanges();
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QString m_filePath;
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QFileSystemWatcher m_fileWatcher;
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QByteArray m_fileChecksum;
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QTimer m_fileChangeDelayTimer;
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QTimer m_fileIgnoreDelayTimer;
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QTimer m_fileChecksumTimer;
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int m_fileChecksumSizeBytes = -1;
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bool m_ignoreFileChange = false;
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};
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class BulkFileWatcher : public QObject
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{
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Q_OBJECT
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enum Signal
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{
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Created,
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Updated,
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Removed
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};
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public:
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explicit BulkFileWatcher(QObject* parent = nullptr);
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void clear();
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void removePath(const QString& path);
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void addPath(const QString& path);
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void ignoreFileChanges(const QString& path);
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signals:
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void fileCreated(QString);
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void fileChanged(QString);
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void fileRemoved(QString);
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public slots:
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void observeFileChanges(bool delayed = false);
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private slots:
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void handleFileChanged(const QString& path);
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void handleDirectoryChanged(const QString& path);
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void emitSignals();
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private:
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void scheduleSignal(Signal event, const QString& path);
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private:
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QMap<QString, bool> m_watchedPaths;
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QMap<QString, QDateTime> m_watchedFilesIgnored;
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QFileSystemWatcher m_fileWatcher;
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QMap<QString, QMap<QString, qint64>> m_watchedFilesInDirectory;
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// needed for Import/Export-References to prevent update after self-write
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QTimer m_watchedFilesIgnoreTimer;
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// needed to tolerate multiple signals for same event
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QTimer m_pendingSignalsTimer;
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QMap<QString, QList<Signal>> m_pendingSignals;
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};
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#endif // KEEPASSXC_FILEWATCHER_H
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