0e754875d1
Open should not be an interface exposed by Directory because it is the Archive thats implement the methed to open the directory. The service API of 3DS also implies this - Open is not a function of directory service, but is of FS main service
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2014 Citra Emulator Project
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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 <cstddef>
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#include <memory>
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#include <string>
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#include <vector>
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#include "common/common_types.h"
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#include "common/file_util.h"
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#include "core/file_sys/archive_backend.h"
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#include "core/file_sys/directory_backend.h"
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#include "core/file_sys/file_backend.h"
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#include "core/hle/result.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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/**
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* Helper which implements an interface to deal with IVFC images used in some archives
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* This should be subclassed by concrete archive types, which will provide the
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* input data (load the raw IVFC archive) and override any required methods
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*/
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class IVFCArchive : public ArchiveBackend {
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public:
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IVFCArchive(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
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: romfs_file(file), data_offset(offset), data_size(size) {}
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std::string GetName() const override;
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ResultVal<std::unique_ptr<FileBackend>> OpenFile(const Path& path,
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const Mode& mode) const override;
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ResultCode DeleteFile(const Path& path) const override;
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ResultCode RenameFile(const Path& src_path, const Path& dest_path) const override;
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ResultCode DeleteDirectory(const Path& path) const override;
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ResultCode DeleteDirectoryRecursively(const Path& path) const override;
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ResultCode CreateFile(const Path& path, u64 size) const override;
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ResultCode CreateDirectory(const Path& path) const override;
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ResultCode RenameDirectory(const Path& src_path, const Path& dest_path) const override;
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ResultVal<std::unique_ptr<DirectoryBackend>> OpenDirectory(const Path& path) const override;
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u64 GetFreeBytes() const override;
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protected:
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std::shared_ptr<FileUtil::IOFile> romfs_file;
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u64 data_offset;
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u64 data_size;
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};
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class IVFCFile : public FileBackend {
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public:
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IVFCFile(std::shared_ptr<FileUtil::IOFile> file, u64 offset, u64 size)
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: romfs_file(file), data_offset(offset), data_size(size) {}
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ResultCode Open() override {
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return RESULT_SUCCESS;
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}
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ResultVal<size_t> Read(u64 offset, size_t length, u8* buffer) const override;
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ResultVal<size_t> Write(u64 offset, size_t length, bool flush, const u8* buffer) const override;
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u64 GetSize() const override;
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bool SetSize(u64 size) const override;
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bool Close() const override {
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return false;
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}
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void Flush() const override {}
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private:
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std::shared_ptr<FileUtil::IOFile> romfs_file;
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u64 data_offset;
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u64 data_size;
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};
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class IVFCDirectory : public DirectoryBackend {
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public:
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u32 Read(const u32 count, Entry* entries) override {
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return 0;
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}
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bool Close() const override {
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return false;
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}
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};
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} // namespace FileSys
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