UnixSignalHeartBeat.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "CoreGlobals.h"
#include "CoreTypes.h"
 
#include <time.h> // IWYU pragma: export
 
class FUnixSignalGameHitchHeartBeat
{
public:
    static CORE_API FUnixSignalGameHitchHeartBeat* Singleton;
 
    static CORE_API FUnixSignalGameHitchHeartBeat& Get();
    static CORE_API FUnixSignalGameHitchHeartBeat* GetNoInit();
 
    CORE_API void FrameStart(bool bSkipThisFrame = false);
 
    CORE_API double GetFrameStartTime();
    CORE_API double GetCurrentTime();
 
    CORE_API void SuspendHeartBeat();
 
    CORE_API void ResumeHeartBeat();
 
    CORE_API bool IsStartedSuspended();
 
    CORE_API void Restart();
    CORE_API void Stop();
 
    CORE_API void PostFork();
 
    CORE_API void InitSettings();
 
private:
    FUnixSignalGameHitchHeartBeat();
    ~FUnixSignalGameHitchHeartBeat();
 
    void Init();
 
    double HitchThresholdS = -1.0;
    double StartTime = 0.0;
    bool bHasCmdLine = false;
    bool bDisabled = false;
    int32 SuspendCount = 0;
    bool bTimerCreated = false;
    bool bStartSuspended = false;
    timer_t TimerId = 0;
};