LargeMemoryWriter.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/UnrealString.h"
#include "CoreTypes.h"
#include "Memory/MemoryFwd.h"
#include "Memory/MemoryView.h"
#include "Serialization/LargeMemoryData.h"
#include "Serialization/MemoryArchive.h"
#include "UObject/NameTypes.h"
 
class FLargeMemoryWriter : public FMemoryArchive
{
public:
    
    CORE_API FLargeMemoryWriter(const int64 PreAllocateBytes = 0, bool bIsPersistent = false, const TCHAR* InFilename = nullptr);
    CORE_API virtual ~FLargeMemoryWriter();
 
    CORE_API virtual void Serialize(void* InData, int64 Num) override;
 
    CORE_API virtual FString GetArchiveName() const override;
 
    virtual int64 TotalSize() override
    {
        return Data.GetSize();
    }
    
    CORE_API uint8* GetData() const;
 
    inline FMemoryView GetView() const { return MakeMemoryView(GetData(), Data.GetSize()); }
 
    UE_FORCEINLINE_HINT uint8* ReleaseOwnership()
    {
        return Data.ReleaseOwnership();
    }
 
    void Reserve(int64 Size)
    {
        Data.Reserve(Size);
    }
 
private:
 
    FLargeMemoryData Data;
 
    FLargeMemoryWriter(const FLargeMemoryWriter&) = delete;
    FLargeMemoryWriter& operator=(const FLargeMemoryWriter&) = delete;
 
 
    const FString ArchiveName;
};