/****************************************************************************
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit.
**
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****************************************************************************/

#ifndef JSONDB_STAT_H
#define JSONDB_STAT_H

#include "jsondbpartitionglobal.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE_JSONDB_PARTITION

class Q_JSONDB_PARTITION_EXPORT JsonDbStat
{
public:
    qint32 reads;
    qint32 hits;
    qint32 writes;
    JsonDbStat() : reads(0), hits(0), writes(0) {};
    JsonDbStat(qint32 reads, qint32 hits, qint32 writes) : reads(reads), hits(hits), writes(writes) {};
    JsonDbStat &operator += (const JsonDbStat &o)
    {
        reads += o.reads;
        hits += o.hits;
        writes += o.writes;
        return *this;
    };
    JsonDbStat &operator -= (const JsonDbStat &o)
    {
        reads = qMax((qint32)0, reads - o.reads);
        hits = qMax((qint32)0, hits - o.hits);
        writes = qMax((qint32)0, writes - o.writes);
        return *this;
    };
};

QT_END_NAMESPACE_JSONDB_PARTITION

QT_END_HEADER

#endif // JSONDB_STAT_H