42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
// Copyright 2018 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <memory>
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#include <string_view>
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#include <boost/container/flat_map.hpp>
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#include "core/file_sys/vfs.h"
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namespace FileSys {
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// Wrapper function to allow for more efficient handling of files.size() == 0, 1 cases.
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VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name = "");
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// Class that wraps multiple vfs files and concatenates them, making reads seamless. Currently
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// read-only.
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class ConcatenatedVfsFile : public VfsFile {
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friend VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name);
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ConcatenatedVfsFile(std::vector<VirtualFile> files, std::string name);
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public:
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std::string GetName() const override;
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std::size_t GetSize() const override;
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bool Resize(std::size_t new_size) override;
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std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
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bool IsWritable() const override;
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bool IsReadable() const override;
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std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
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std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
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bool Rename(std::string_view name) override;
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private:
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// Maps starting offset to file -- more efficient.
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boost::container::flat_map<u64, VirtualFile> files;
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std::string name;
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};
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} // namespace FileSys
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