60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// Georgy Treshchev 2024.
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#pragma once
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#include "CoreMinimal.h"
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#include "RuntimeArchiverBase.h"
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#include "ArchiverTar/RuntimeArchiverTar.h"
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#include "UObject/StrongObjectPtr.h"
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#include "RuntimeArchiverGZip.generated.h"
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/**
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* GZip archiver class. Works with tar.gz (tgz) archives
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* Archiving of data occurs through the Tar archiver and their subsequent compression through GZip raw archiver (the same applies for unarchiving)
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*/
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UCLASS(BlueprintType, Category = "Runtime Archiver")
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class RUNTIMEARCHIVER_API URuntimeArchiverGZip : public URuntimeArchiverBase
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{
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GENERATED_BODY()
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public:
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URuntimeArchiverGZip();
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//~ Begin URuntimeArchiverBase Interface
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virtual bool CreateArchiveInStorage(FString ArchivePath) override;
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virtual bool CreateArchiveInMemory(int32 InitialAllocationSize = 0) override;
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virtual bool OpenArchiveFromStorage(FString ArchivePath) override;
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virtual bool OpenArchiveFromMemory(const TArray64<uint8>& ArchiveData) override;
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virtual bool CloseArchive() override;
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virtual bool GetArchiveData(TArray64<uint8>& ArchiveData) override;
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virtual bool GetArchiveEntries(int32& NumOfArchiveEntries) override;
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virtual bool GetArchiveEntryInfoByName(FString EntryName, FRuntimeArchiveEntry& EntryInfo) override;
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virtual bool GetArchiveEntryInfoByIndex(int32 EntryIndex, FRuntimeArchiveEntry& EntryInfo) override;
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virtual bool AddEntryFromMemory(FString EntryName, const TArray64<uint8>& DataToBeArchived, ERuntimeArchiverCompressionLevel CompressionLevel) override;
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virtual bool ExtractEntryToMemory(const FRuntimeArchiveEntry& EntryInfo, TArray64<uint8>& UnarchivedData) override;
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virtual bool Initialize() override;
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virtual bool IsInitialized() const override;
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virtual void Reset() override;
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virtual void ReportError(ERuntimeArchiverErrorCode ErrorCode, const FString& ErrorString) const override;
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//~ End URuntimeArchiverBase Interface
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private:
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/** Tar archiver used for internal operations */
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TStrongObjectPtr<URuntimeArchiverTar> TarArchiver;
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/** Stream containing LZ4 compressed data */
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TUniquePtr<FRuntimeArchiverBaseStream> CompressedStream;
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/** Last saved compression level */
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ERuntimeArchiverCompressionLevel LastCompressionLevel;
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};
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