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83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
//
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// OctreePersistThread.h
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// libraries/octree/src
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//
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// Created by Brad Hefta-Gaub on 8/21/13.
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// Copyright 2013 High Fidelity, Inc.
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//
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// Threaded or non-threaded Octree persistence
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#ifndef hifi_OctreePersistThread_h
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#define hifi_OctreePersistThread_h
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#include <QString>
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#include <GenericThread.h>
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#include "Octree.h"
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/// Generalized threaded processor for handling received inbound packets.
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class OctreePersistThread : public GenericThread {
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Q_OBJECT
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public:
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class BackupRule {
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public:
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QString name;
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int interval;
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QString extensionFormat;
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int maxBackupVersions;
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quint64 lastBackup;
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};
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static const int DEFAULT_PERSIST_INTERVAL;
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OctreePersistThread(OctreePointer tree, const QString& filename, int persistInterval = DEFAULT_PERSIST_INTERVAL,
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bool wantBackup = false, const QJsonObject& settings = QJsonObject(),
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bool debugTimestampNow = false, QString persistAsFileType="svo");
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bool isInitialLoadComplete() const { return _initialLoadComplete; }
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quint64 getLoadElapsedTime() const { return _loadTimeUSecs; }
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void aboutToFinish(); /// call this to inform the persist thread that the owner is about to finish to support final persist
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QString getPersistFilename() const { return _filename; }
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QString getPersistFileMimeType() const;
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QByteArray getPersistFileContents() const;
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signals:
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void loadCompleted();
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protected:
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/// Implements generic processing behavior for this thread.
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virtual bool process();
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void persist();
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void backup();
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void rollOldBackupVersions(const BackupRule& rule);
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void restoreFromMostRecentBackup();
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bool getMostRecentBackup(const QString& format, QString& mostRecentBackupFileName, QDateTime& mostRecentBackupTime);
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quint64 getMostRecentBackupTimeInUsecs(const QString& format);
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void parseSettings(const QJsonObject& settings);
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private:
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OctreePointer _tree;
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QString _filename;
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int _persistInterval;
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bool _initialLoadComplete;
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quint64 _loadTimeUSecs;
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time_t _lastPersistTime;
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quint64 _lastCheck;
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bool _wantBackup;
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QVector<BackupRule> _backupRules;
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bool _debugTimestampNow;
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quint64 _lastTimeDebug;
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QString _persistAsFileType;
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};
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#endif // hifi_OctreePersistThread_h
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