106 lines
3 KiB
C++
106 lines
3 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 <boost/serialization/base_object.hpp>
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#include <boost/serialization/unique_ptr.hpp>
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#include <boost/serialization/vector.hpp>
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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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class DiskFile : public FileBackend {
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public:
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DiskFile(FileUtil::IOFile&& file_, const Mode& mode_,
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std::unique_ptr<DelayGenerator> delay_generator_)
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: file(new FileUtil::IOFile(std::move(file_))) {
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delay_generator = std::move(delay_generator_);
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mode.hex = mode_.hex;
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}
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ResultVal<std::size_t> Read(u64 offset, std::size_t length, u8* buffer) const override;
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ResultVal<std::size_t> Write(u64 offset, std::size_t length, bool flush,
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const u8* buffer) 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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void Flush() const override {
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file->Flush();
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}
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protected:
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Mode mode;
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std::unique_ptr<FileUtil::IOFile> file;
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private:
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DiskFile() = default;
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template <class Archive>
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void serialize(Archive& ar, const unsigned int) {
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ar& boost::serialization::base_object<FileBackend>(*this);
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ar& mode.hex;
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ar& file;
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}
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friend class boost::serialization::access;
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};
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class DiskDirectory : public DirectoryBackend {
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public:
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explicit DiskDirectory(const std::string& path);
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~DiskDirectory() override {
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Close();
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}
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u32 Read(u32 count, Entry* entries) override;
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bool Close() const override {
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return true;
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}
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protected:
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FileUtil::FSTEntry directory{};
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// We need to remember the last entry we returned, so a subsequent call to Read will continue
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// from the next one. This iterator will always point to the next unread entry.
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std::vector<FileUtil::FSTEntry>::iterator children_iterator;
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private:
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DiskDirectory() = default;
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template <class Archive>
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void serialize(Archive& ar, const unsigned int) {
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ar& boost::serialization::base_object<DirectoryBackend>(*this);
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ar& directory;
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u64 child_index;
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if (Archive::is_saving::value) {
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child_index = children_iterator - directory.children.begin();
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}
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ar& child_index;
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if (Archive::is_loading::value) {
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children_iterator = directory.children.begin() + child_index;
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}
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}
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friend class boost::serialization::access;
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};
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} // namespace FileSys
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BOOST_CLASS_EXPORT_KEY(FileSys::DiskFile)
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BOOST_CLASS_EXPORT_KEY(FileSys::DiskDirectory)
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