ZeroLoad.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "HAL/ThreadSafeCounter.h"
#include "ProfilingDebugging/Histogram.h"
#include "HAL/Runnable.h"
 
class FZeroLoad : public FRunnable
{
    FThreadSafeCounter ExitRequest;
 
    double TickRate;
 
    FHistogram TickTimeHistogram;
 
    FCriticalSection HitchMessagesLock;
 
    TArray<FString> HitchMessagesToBeLogged;
 
    void AddHitchMessage(double HitchDurationInMs);
 
public:
 
    // FRunnable interface
    virtual bool Init() override;
    virtual uint32 Run() override;
    virtual void Stop() override;
    virtual void Exit() override;
    // end of FRunnable interface
 
    bool GetHitchMessages(TArray<FString>& OutArray);
 
    bool GetFrameTimeHistogram(FHistogram& OutHistogram);
 
    FZeroLoad(double InTickRate);
    FZeroLoad(double InTickRate, const TArray<double>& FrameTimeHistogramBucketsMs);
    virtual ~FZeroLoad() { }
};