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The cache stores can individually control their "legacy mode" now, which offers a choice of ValueOnly, ValueWithLegacyFallback, LegacyOnly. - Using ValueOnly will forward every legacy request through the Value API, which compresses values by default and supports values larger than 2 GiB. - Using ValueWithLegacyFallback behaves like ValueOnly, but misses from GetValue are forwarded to GetCachedData, and stored with PutValue if found. - Using LegacyOnly will forward every legacy request through the Legacy API. FLegacyCacheValue uses shared state to ensure that each value is compressed or decompressed at most once. #jira UE-134381 #preflight 62054b430c64e1822f41231b #lockdown Mark.Lintott #rb Zousar.Shaker #rnx #ROBOMERGE-AUTHOR: devin.doucette #ROBOMERGE-SOURCE: CL 18940270 in //UE5/Release-5.0/... via CL 18941016 via CL 18941392 #ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v917-18934589) [CL 18941401 by devin doucette in ue5-main branch]
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreTypes.h"
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#include "Containers/StringFwd.h"
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#include "Misc/AsciiSet.h"
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class FDerivedDataCacheInterface;
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class FQueuedThreadPool;
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template <typename FuncType> class TUniqueFunction;
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namespace UE::DerivedData { class FCacheRecord; }
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namespace UE::DerivedData { class ICache; }
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namespace UE::DerivedData { class IRequestOwner; }
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namespace UE::DerivedData { struct FCacheKey; }
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namespace UE::DerivedData::Private
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{
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// Created by CreateCache
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extern FQueuedThreadPool* GCacheThreadPool;
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// Implemented in DerivedDataCache.cpp
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ICache* CreateCache(FDerivedDataCacheInterface** OutLegacyCache);
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// Implemented in DerivedDataCacheRecord.cpp
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uint64 GetCacheRecordCompressedSize(const FCacheRecord& Record);
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uint64 GetCacheRecordTotalRawSize(const FCacheRecord& Record);
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uint64 GetCacheRecordRawSize(const FCacheRecord& Record);
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// Implemented in DerivedDataCacheStoreAsync.cpp
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void ExecuteInCacheThreadPool(
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IRequestOwner& Owner,
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TUniqueFunction<void (IRequestOwner& Owner, bool bCancel)>&& Function);
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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template <typename CharType>
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inline bool IsValidCacheBucketName(TStringView<CharType> Name)
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{
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constexpr FAsciiSet Valid("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
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return !Name.IsEmpty() && Name.Len() < 256 && FAsciiSet::HasOnly(Name, Valid);
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}
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} // UE::DerivedData::Private
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