File indexing completed on 2024-05-19 05:11:42
0001 /* 0002 SPDX-FileCopyrightText: 2007 Till Adam <adam@kde.org> 0003 0004 SPDX-License-Identifier: LGPL-2.0-or-later 0005 */ 0006 0007 #pragma once 0008 0009 #include <QMutex> 0010 #include <QObject> 0011 0012 #include <Akonadi/GidExtractorInterface> 0013 #include <Akonadi/ItemSerializerPlugin> 0014 0015 namespace Akonadi 0016 { 0017 /** 0018 * Levare QString implicit sharing to decrease memory consumption. 0019 * 0020 * This class is thread safe. Apparently required for usage in 0021 * legacy KRes compat bridges. 0022 */ 0023 class StringPool 0024 { 0025 public: 0026 /** 0027 * Lookup @p value in the pool and return the known value 0028 * to reuse it and leverage the implicit sharing. Otherwise 0029 * add the value to the pool and return it again. 0030 */ 0031 QString sharedValue(const QString &value); 0032 0033 private: 0034 QMutex m_mutex; 0035 QSet<QString> m_pool; 0036 }; 0037 0038 class SerializerPluginMail : public QObject, public ItemSerializerPlugin, public GidExtractorInterface 0039 { 0040 Q_OBJECT 0041 Q_INTERFACES(Akonadi::ItemSerializerPlugin Akonadi::GidExtractorInterface) 0042 Q_PLUGIN_METADATA(IID "org.kde.akonadi.SerializerPluginMail") 0043 public: 0044 bool deserialize(Item &item, const QByteArray &label, QIODevice &data, int version) override; 0045 void serialize(const Item &item, const QByteArray &label, QIODevice &data, int &version) override; 0046 QSet<QByteArray> parts(const Item &item) const override; 0047 QString extractGid(const Item &item) const override; 0048 0049 private: 0050 StringPool m_stringPool; 0051 }; 0052 }