56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
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#pragma once
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#if !defined(MIJIN_SOURCE_MIJIN_VIRTUAL_FILESYSTEM_MEMORY_HPP_INCLUDED)
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#define MIJIN_SOURCE_MIJIN_VIRTUAL_FILESYSTEM_MEMORY_HPP_INCLUDED 1
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#include <variant>
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#include <vector>
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#include "../container/vector_map.hpp"
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#include "../util/flag.hpp"
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#include "../virtual_filesystem/filesystem.hpp"
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namespace mijin
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{
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namespace detail
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{
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struct MemoryFile
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{
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std::span<const std::uint8_t> data;
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};
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struct MemoryFolder
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{
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VectorMap<std::string, MemoryFile, std::allocator<std::string>, std::allocator<MemoryFile>> files; // TODO: make the FS library allocator aware
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VectorMap<std::string, MemoryFolder, std::allocator<std::string>, std::allocator<MemoryFolder>> folders;
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};
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}
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class MemoryFileSystemAdapter : public FileSystemAdapter
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{
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public:
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MIJIN_DEFINE_FLAG(Overwrite);
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MIJIN_DEFINE_FLAG(CopyData);
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private:
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detail::MemoryFolder root_;
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std::vector<std::vector<std::uint8_t>> fileData_;
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public:
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[[nodiscard]] std::vector<FileInfo> listFiles(const fs::path& folder) override;
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[[nodiscard]] FileInfo getFileInfo(const fs::path& file) override;
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[[nodiscard]] StreamError open(const fs::path& path, FileOpenMode mode, std::unique_ptr<Stream>& outStream) override;
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bool addFile(const fs::path& path, std::span<const std::uint8_t> data, Overwrite overwrite = Overwrite::NO, CopyData copyData = CopyData::NO);
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bool addFile(const fs::path& path, std::span<const std::uint8_t> data, CopyData copyData)
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{
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return addFile(path, data, Overwrite::NO, copyData);
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}
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void addFolder(const fs::path& path);
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private:
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detail::MemoryFolder* findFolder(const fs::path& path, bool create = false) MIJIN_NOEXCEPT;
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FileInfo folderInfo(const fs::path& path, const detail::MemoryFolder& folder) const MIJIN_NOEXCEPT;
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FileInfo fileInfo(const fs::path& path, const detail::MemoryFile& file) const MIJIN_NOEXCEPT;
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};
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} // namespace mijin
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#endif // !defined(MIJIN_SOURCE_MIJIN_VIRTUAL_FILESYSTEM_MEMORY_HPP_INCLUDED)
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