Stopwatch.h

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// Stopwatch.h
//
// Copyright (c) 2013, 2015 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// 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 "Clock.h"
#include "Duration.h"
#include "OS.h"

#if defined(_WIN32) && defined(HR_ENGINE_SHARED)
#   ifdef MR_ENGINE
#       define MR_DllDeclare   __declspec( dllexport )
#   else
#       define MR_DllDeclare   __declspec( dllimport )
#   endif
#else
#   define MR_DllDeclare
#endif

namespace HoverRace {
namespace Util {

class MR_DllDeclare Stopwatch
{
public:
    struct Lap
    {
        Lap(const std::string &name, const Duration &elapsed) :
            name(name), elapsed(elapsed) { }
        Lap(const Lap &o) = default;
        Lap(Lap &&o) noexcept = default;

        Lap &operator=(const Lap &o) = default;
        Lap &operator=(Lap &&lap) = default;

        std::string name;
        Duration elapsed;
    };

public:
    Stopwatch(std::shared_ptr<Clock> clock);
    Stopwatch(std::shared_ptr<Clock> clock, const Duration &start);

public:
    template<typename Fn>
    void ForEachLap(Fn fn)
    {
        std::for_each(laps.cbegin(), laps.cend(), fn);
    }

public:
    Duration NextLap(const std::string &name);

private:
    std::shared_ptr<Clock> clock;
    Duration lastLap;
    std::vector<Lap> laps;
};

}  // namespace Util
}  // namespace HoverRace

#undef MR_DllDeclare