timeVal.h

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/* Copyright 2015 - 2016 Anastasiia Kornilova.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. */

#pragma once
#include <QtCore/qmetatype.h>
namespace trikKernel {

class TimeVal
{
public:

    TimeVal(int sec, int mcsec);

    uint32_t packedUInt32() const;

    static TimeVal fromPackedUInt32(uint32_t packedTime);

    static int timeInterval(int packedTimeLeft, int packedTimeRight);
#if QT_VERSION < 0x050000
    friend void *qMetaTypeConstructHelper<TimeVal>(const TimeVal *t);
#else
    friend struct QtMetaTypePrivate::QMetaTypeFunctionHelper<TimeVal>;
#endif

    friend int operator-(const TimeVal &left, const TimeVal &right);

private:
    TimeVal() = default;

    explicit TimeVal(int packedTime);

    uint32_t mTime = 0;

    static const uint32_t mSecConst = 15625;
    static const uint32_t mShift = 8;
};

inline int operator-(const TimeVal &left, const TimeVal &right)
{
    return (left.mTime - right.mTime) << TimeVal::mShift;
}

}

Q_DECLARE_METATYPE(trikKernel::TimeVal)