statisticSampler.h

/* Copyright (c) 2009-2016, Stefan Eilemann <eile@equalizergraphics.com>
 *                          Daniel Nachbaur <danielnachbaur@gmail.com>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 2.1 as published
 * by the Free Software Foundation.
 *
 * 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef EQ_STATISTICSAMPLER_H
#define EQ_STATISTICSAMPLER_H

#include <eq/fabric/statistic.h> // member
#include <eq/types.h>

namespace eq
{
template <typename Owner>
class StatisticSampler
{
public:
    StatisticSampler(const Statistic::Type type, Owner* owner,
                     const uint32_t frameNumber = LB_UNDEFINED_UINT32)
        : _owner(owner)
    {
        LBASSERT(owner);
        LBASSERT(owner->getID() != 0);
        LBASSERT(owner->getSerial() != CO_INSTANCE_INVALID);
        statistic.type = type;
        statistic.frameNumber = frameNumber;
        statistic.resourceName[0] = '\0';
        statistic.startTime = 0;
        statistic.endTime = 0;

        if (statistic.frameNumber == LB_UNDEFINED_UINT32)
            statistic.frameNumber = owner->getCurrentFrame();
    }

    virtual ~StatisticSampler()
    {
        LBASSERTINFO(statistic.startTime <= statistic.endTime, statistic);
    }

    Statistic statistic; 

protected:
    Owner* const _owner;
};
}

#endif // EQ_STATISTICSAMPLER_H