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52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Common/StringStore.h"
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#include "Misc/ScopeLock.h"
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namespace TraceServices
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{
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FStringStore::FStringStore(FSlabAllocator& InAllocator)
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: Allocator(InAllocator)
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{
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}
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const TCHAR* FStringStore::Store(const TCHAR* String)
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{
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return Store(FStringView(String));
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}
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const TCHAR* FStringStore::Store(const FStringView& String)
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{
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FScopeLock _(&Cs);
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uint32 Hash = GetTypeHash(String);
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const TCHAR** AlreadyStored = StoredStrings.Find(Hash);
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if (AlreadyStored && !String.Compare(FStringView(*AlreadyStored)))
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{
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return *AlreadyStored;
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}
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int32 StringLength = String.Len() + 1;
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if (BufferLeft < StringLength)
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{
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BufferPtr = reinterpret_cast<TCHAR*>(Allocator.Allocate(BlockSize * sizeof(TCHAR)));
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++BlockCount;
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BufferLeft = BlockSize;
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}
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const TCHAR* Stored = BufferPtr;
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memcpy(BufferPtr, String.GetData(), (StringLength - 1) * sizeof(TCHAR));
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BufferPtr[StringLength - 1] = TEXT('\0');
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BufferLeft -= StringLength;
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BufferPtr += StringLength;
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if (!AlreadyStored)
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{
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StoredStrings.Add(Hash, Stored);
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}
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return Stored;
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}
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} // namespace TraceServices
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