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// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <boost/serialization/base_object.hpp>
#include "core/file_sys/archive_backend.h"
#include "core/global.h"
#include "core/hle/service/service.h"
namespace Core {
class System;
}
namespace Service::FS {
struct FileSessionSlot : public Kernel::SessionRequestHandler::SessionDataBase {
u32 priority; ///< Priority of the file. TODO(Subv): Find out what this means
u64 offset; ///< Offset that this session will start reading from.
u64 size; ///< Max size of the file that this session is allowed to access
bool subfile; ///< Whether this file was opened via OpenSubFile or not.
private:
template <class Archive>
void serialize(Archive& ar, const unsigned int) {
ar& boost::serialization::base_object<Kernel::SessionRequestHandler::SessionDataBase>(
*this);
ar& priority;
ar& offset;
ar& size;
ar& subfile;
}
friend class boost::serialization::access;
};
// TODO: File is not a real service, but it can still utilize ServiceFramework::RegisterHandlers.
// Consider splitting ServiceFramework interface.
class File final : public ServiceFramework<File, FileSessionSlot> {
public:
File(Kernel::KernelSystem& kernel, std::unique_ptr<FileSys::FileBackend>&& backend,
const FileSys::Path& path);
~File() = default;
std::string GetName() const {
return "Path: " + path.DebugStr();
}
FileSys::Path path; ///< Path of the file
std::unique_ptr<FileSys::FileBackend> backend; ///< File backend interface
/// Creates a new session to this File and returns the ClientSession part of the connection.
std::shared_ptr<Kernel::ClientSession> Connect();
// Returns the start offset of an open file represented by the input session, opened with
// OpenSubFile.
std::size_t GetSessionFileOffset(std::shared_ptr<Kernel::ServerSession> session);
// Returns the size of an open file represented by the input session, opened with
// OpenSubFile.
std::size_t GetSessionFileSize(std::shared_ptr<Kernel::ServerSession> session);
private:
void Read(Kernel::HLERequestContext& ctx);
void Write(Kernel::HLERequestContext& ctx);
void GetSize(Kernel::HLERequestContext& ctx);
void SetSize(Kernel::HLERequestContext& ctx);
void Close(Kernel::HLERequestContext& ctx);
void Flush(Kernel::HLERequestContext& ctx);
void SetPriority(Kernel::HLERequestContext& ctx);
void GetPriority(Kernel::HLERequestContext& ctx);
void OpenLinkFile(Kernel::HLERequestContext& ctx);
void OpenSubFile(Kernel::HLERequestContext& ctx);
Kernel::KernelSystem& kernel;
File(Kernel::KernelSystem& kernel);
File();
template <class Archive>
void serialize(Archive& ar, const unsigned int);
friend class boost::serialization::access;
};
} // namespace Service::FS
BOOST_CLASS_EXPORT_KEY(Service::FS::FileSessionSlot)
BOOST_CLASS_EXPORT_KEY(Service::FS::File)
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