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#rnx #rb none #ROBOMERGE-OWNER: ryan.durand #ROBOMERGE-AUTHOR: ryan.durand #ROBOMERGE-SOURCE: CL 10869210 via CL 10869511 via CL 10869900 #ROBOMERGE-BOT: (v613-10869866) [CL 10870549 by ryan durand in Main branch]
49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "HAL/ThreadSafeCounter.h"
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#include "ProfilingDebugging/Histogram.h"
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#include "HAL/Runnable.h"
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class FZeroLoad : public FRunnable
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{
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/** signal request to stop and exit thread */
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FThreadSafeCounter ExitRequest;
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/** Tick frequency, HZ */
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double TickRate;
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/** Histogram of thread loop times, not accessed outside of the thread */
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FHistogram TickTimeHistogram;
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/** Guards access to hitch messages */
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FCriticalSection HitchMessagesLock;
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/** Hitches that have not yet been logged */
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TArray<FString> HitchMessagesToBeLogged;
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/** Adds a message to log. We avoid calling UE_LOG directly since this can add locks at unpredictable times. */
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void AddHitchMessage(double HitchDurationInMs);
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public:
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// FRunnable interface
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virtual bool Init() override;
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virtual uint32 Run() override;
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virtual void Stop() override;
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virtual void Exit() override;
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// end of FRunnable interface
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/** Gets messages to log - can block. */
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bool GetHitchMessages(TArray<FString>& OutArray);
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/** Gets frame time histogram - not guarded, should only be accessed after thread has stopped! */
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bool GetFrameTimeHistogram(FHistogram& OutHistogram);
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FZeroLoad(double InTickRate);
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FZeroLoad(double InTickRate, const TArray<double>& FrameTimeHistogramBucketsMs);
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virtual ~FZeroLoad() { }
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};
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