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akonadi_serializer_mail.h
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/*
Copyright (c) 2007 Till Adam <adam@kde.org>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library 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 Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#ifndef __AKONADI_SERIALIZER_MAIL_H__
#define __AKONADI_SERIALIZER_MAIL_H__
#include <QtCore/QObject>
#include <QtCore/QMutex>
#include <akonadi/itemserializerplugin.h>
namespace Akonadi {
/**
* Levare QString implicit sharing to decrease memory consumption.
*
* This class is thread safe. Apparenlty required for usage in
* legacy KRes compat bridges.
*/
class StringPool
{
public:
/**
* Lookup @p value in the pool and return the known value
* to reuse it and leverage the implicit sharing. Otherwise
* add the value to the pool and return it again.
*/
QString sharedValue(const QString& value);
private:
QMutex m_mutex;
QSet<QString> m_pool;
};
class SerializerPluginMail : public QObject, public ItemSerializerPlugin
{
Q_OBJECT
Q_INTERFACES( Akonadi::ItemSerializerPlugin )
public:
bool deserialize( Item& item, const QByteArray& label, QIODevice& data, int version );
void serialize( const Item& item, const QByteArray& label, QIODevice& data, int &version );
QSet<QByteArray> parts( const Item &item ) const;
private:
StringPool m_stringPool;
};
}
#endif

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