ThrottleManager.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "CoreTypes.h"
#include "HAL/IConsoleManager.h"
 
class FThrottleRequest
{
    // Only the manager is allowed to change values
    friend class FSlateThrottleManager;
 
public:
 
    FThrottleRequest()
        : Index(INDEX_NONE)
    { }
 
public:
 
    bool IsValid() const
    {
        return Index != INDEX_NONE;
    }
 
private:
 
    int32 Index;
};
 
 
class FSlateThrottleManager
{
public:
 
    SLATECORE_API FSlateThrottleManager();
 
public:
 
    SLATECORE_API FThrottleRequest EnterResponsiveMode();
 
    SLATECORE_API void LeaveResponsiveMode( FThrottleRequest& InHandle );
 
    SLATECORE_API bool IsAllowingExpensiveTasks() const;
 
    SLATECORE_API void DisableThrottle(bool bState);
 
public:
 
    static SLATECORE_API FSlateThrottleManager& Get( );
 
private:
    int32 bShouldThrottle;
 
    FAutoConsoleVariableRef CVarAllowThrottle;
 
    uint32 ThrottleCount;
 
    int32 DisableThrottleCount;
};