/***
    Copyright (C) 2023 J Reece Wilson (a/k/a "Reece"). All rights reserved.

    File: AuCpuLoadSampler.hpp
    Date: 2023-10-28
    Author: Reece
***/
#pragma once

namespace Aurora::HWInfo
{
    struct CoreLoadSamplerState
    {
        double GetLoad(AuUInt32 uMinSamplePeriod,
                       AuUInt8 uThread,
                       bool bCountKernelUsage);

        AuUInt64 uPrevSteadyTime {};
        AuUInt64 uPrevTimes[256] {};
        double dPrevLoad[256] {};
        double dCurrentLoad[256] {};
        double dCurrentLoadAll {};
        AuUInt64 uCount {};
        bool bSet {};
    };

    struct CoreLoadSamplerImpl : ICoreLoadSampler
    {
        CoreLoadSamplerImpl(AuUInt32 uMinSamplePeriodMS,
                           bool bCountKernelUsage);

        ~CoreLoadSamplerImpl();

        double GetCoreLoad(AuUInt8 uCore) override;
        double GetTotalLoad() override;
        double GetTotalLoadCached() override;
        double GetCoreLoadCached(AuUInt8 uCore) override;
        double *GetCoreLoadsCached(AuUInt32 *pOut) override;

        AuUInt32 uMinSamplePeriod {};
        bool bCountKernelUsage {};
        CoreLoadSamplerState state;
    };
}