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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include <zencore/iobuffer.h>
#include <zencore/thread.h>
#include <unordered_map>
namespace zen {
class ZipFs
{
public:
explicit ZipFs(IoBuffer&& Buffer);
IoBuffer GetFile(const std::string_view& FileName) const;
private:
struct FileItem
{
MemoryView View; // Initially points to LFH (size=0); resolved to file data on first access
uint32_t CompressedSize = 0;
uint32_t UncompressedSize = 0;
uint16_t CompressionMethod = 0;
IoBuffer DecompressedData; // Owns decompressed buffer for deflate entries
};
using FileMap = std::unordered_map<std::string_view, FileItem>;
mutable RwLock m_FilesLock;
FileMap mutable m_Files;
IoBuffer m_Buffer;
};
} // namespace zen
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