rssguard/src/services/abstract/cacheforserviceroot.h
2017-09-09 14:14:25 +02:00

55 lines
1.8 KiB
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Executable file

// This file is part of RSS Guard.
//
// Copyright (C) 2011-2017 by Martin Rotter <rotter.martinos@gmail.com>
//
// RSS Guard is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// RSS Guard is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with RSS Guard. If not, see <http://www.gnu.org/licenses/>.
#ifndef CACHEFORSERVICEROOT_H
#define CACHEFORSERVICEROOT_H
#include "services/abstract/serviceroot.h"
#include <QStringList>
#include <QPair>
#include <QMap>
class Mutex;
class CacheForServiceRoot {
public:
explicit CacheForServiceRoot();
virtual ~CacheForServiceRoot();
void addMessageStatesToCache(const QList<Message>& ids_of_messages, RootItem::Importance importance);
void addMessageStatesToCache(const QStringList& ids_of_messages, RootItem::ReadStatus read);
// Persistently saves/loads cached changes to/from file.
// NOTE: The whole cache is cleared after save is done and before load is done.
void saveCacheToFile(int accId);
void loadCacheFromFile(int accId);
protected:
QPair<QMap<RootItem::ReadStatus, QStringList>, QMap<RootItem::Importance, QList<Message>>> takeMessageCache();
Mutex* m_cacheSaveMutex;
QMap<RootItem::ReadStatus, QStringList> m_cachedStatesRead;
QMap<RootItem::Importance, QList<Message>> m_cachedStatesImportant;
private:
bool isEmpty() const;
void clearCache();
};
#endif // CACHEFORSERVICEROOT_H