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FileSys: abstract SD save data archive source
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parent
3174bfd50c
commit
5af117e00c
@ -22,6 +22,7 @@ set(SRCS
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file_sys/archive_savedata.cpp
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file_sys/archive_sdmc.cpp
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file_sys/archive_sdmcwriteonly.cpp
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file_sys/archive_source_sd_savedata.cpp
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file_sys/archive_systemsavedata.cpp
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file_sys/disk_archive.cpp
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file_sys/ivfc_archive.cpp
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@ -167,6 +168,7 @@ set(HEADERS
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file_sys/archive_savedata.h
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file_sys/archive_sdmc.h
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file_sys/archive_sdmcwriteonly.h
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file_sys/archive_source_sd_savedata.h
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file_sys/archive_systemsavedata.h
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file_sys/directory_backend.h
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file_sys/disk_archive.h
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@ -2,96 +2,29 @@
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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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#include <algorithm>
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#include <memory>
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#include "common/common_types.h"
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#include "common/file_util.h"
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#include "common/logging/log.h"
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#include "common/string_util.h"
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#include "core/file_sys/archive_savedata.h"
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#include "core/file_sys/savedata_archive.h"
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#include "core/hle/kernel/process.h"
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#include "core/hle/service/fs/archive.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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static std::string GetSaveDataContainerPath(const std::string& sdmc_directory) {
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return Common::StringFromFormat("%sNintendo 3DS/%s/%s/title/", sdmc_directory.c_str(),
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SYSTEM_ID.c_str(), SDCARD_ID.c_str());
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}
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static std::string GetSaveDataPath(const std::string& mount_location, u64 program_id) {
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u32 high = (u32)(program_id >> 32);
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u32 low = (u32)(program_id & 0xFFFFFFFF);
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return Common::StringFromFormat("%s%08x/%08x/data/00000001/", mount_location.c_str(), high,
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low);
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}
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static std::string GetSaveDataMetadataPath(const std::string& mount_location, u64 program_id) {
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u32 high = (u32)(program_id >> 32);
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u32 low = (u32)(program_id & 0xFFFFFFFF);
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return Common::StringFromFormat("%s%08x/%08x/data/00000001.metadata", mount_location.c_str(),
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high, low);
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}
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ArchiveFactory_SaveData::ArchiveFactory_SaveData(const std::string& sdmc_directory)
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: mount_point(GetSaveDataContainerPath(sdmc_directory)) {
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LOG_INFO(Service_FS, "Directory %s set as SaveData.", this->mount_point.c_str());
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}
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ArchiveFactory_SaveData::ArchiveFactory_SaveData(
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std::shared_ptr<ArchiveSource_SDSaveData> sd_savedata)
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: sd_savedata_source(sd_savedata) {}
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ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveData::Open(const Path& path) {
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std::string concrete_mount_point =
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GetSaveDataPath(mount_point, Kernel::g_current_process->codeset->program_id);
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if (!FileUtil::Exists(concrete_mount_point)) {
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// When a SaveData archive is created for the first time, it is not yet formatted and the
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// save file/directory structure expected by the game has not yet been initialized.
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// Returning the NotFormatted error code will signal the game to provision the SaveData
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// archive with the files and folders that it expects.
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return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
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ErrorSummary::InvalidState, ErrorLevel::Status);
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}
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auto archive = std::make_unique<SaveDataArchive>(std::move(concrete_mount_point));
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return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
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return sd_savedata_source->Open(Kernel::g_current_process->codeset->program_id);
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}
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ResultCode ArchiveFactory_SaveData::Format(const Path& path,
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const FileSys::ArchiveFormatInfo& format_info) {
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std::string concrete_mount_point =
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GetSaveDataPath(mount_point, Kernel::g_current_process->codeset->program_id);
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FileUtil::DeleteDirRecursively(concrete_mount_point);
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FileUtil::CreateFullPath(concrete_mount_point);
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// Write the format metadata
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std::string metadata_path =
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GetSaveDataMetadataPath(mount_point, Kernel::g_current_process->codeset->program_id);
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FileUtil::IOFile file(metadata_path, "wb");
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if (file.IsOpen()) {
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file.WriteBytes(&format_info, sizeof(format_info));
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return RESULT_SUCCESS;
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}
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return RESULT_SUCCESS;
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return sd_savedata_source->Format(Kernel::g_current_process->codeset->program_id, format_info);
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}
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ResultVal<ArchiveFormatInfo> ArchiveFactory_SaveData::GetFormatInfo(const Path& path) const {
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std::string metadata_path =
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GetSaveDataMetadataPath(mount_point, Kernel::g_current_process->codeset->program_id);
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FileUtil::IOFile file(metadata_path, "rb");
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if (!file.IsOpen()) {
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LOG_ERROR(Service_FS, "Could not open metadata information for archive");
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// TODO(Subv): Verify error code
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return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
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ErrorSummary::InvalidState, ErrorLevel::Status);
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}
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ArchiveFormatInfo info = {};
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file.ReadBytes(&info, sizeof(info));
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return MakeResult<ArchiveFormatInfo>(info);
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return sd_savedata_source->GetFormatInfo(Kernel::g_current_process->codeset->program_id);
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}
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} // namespace FileSys
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@ -4,10 +4,7 @@
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#pragma once
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#include <memory>
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#include <string>
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#include "core/file_sys/archive_backend.h"
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#include "core/hle/result.h"
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#include "core/file_sys/archive_source_sd_savedata.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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@ -17,7 +14,7 @@ namespace FileSys {
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/// File system interface to the SaveData archive
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class ArchiveFactory_SaveData final : public ArchiveFactory {
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public:
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ArchiveFactory_SaveData(const std::string& mount_point);
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explicit ArchiveFactory_SaveData(std::shared_ptr<ArchiveSource_SDSaveData> sd_savedata_source);
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std::string GetName() const override {
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return "SaveData";
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@ -30,6 +27,7 @@ public:
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private:
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std::string mount_point;
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std::shared_ptr<ArchiveSource_SDSaveData> sd_savedata_source;
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};
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} // namespace FileSys
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93
src/core/file_sys/archive_source_sd_savedata.cpp
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93
src/core/file_sys/archive_source_sd_savedata.cpp
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@ -0,0 +1,93 @@
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// Copyright 2016 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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#include "common/file_util.h"
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#include "common/logging/log.h"
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#include "common/string_util.h"
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#include "core/file_sys/archive_source_sd_savedata.h"
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#include "core/file_sys/savedata_archive.h"
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#include "core/hle/service/fs/archive.h"
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// FileSys namespace
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namespace FileSys {
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namespace {
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std::string GetSaveDataContainerPath(const std::string& sdmc_directory) {
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return Common::StringFromFormat("%sNintendo 3DS/%s/%s/title/", sdmc_directory.c_str(),
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SYSTEM_ID.c_str(), SDCARD_ID.c_str());
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}
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std::string GetSaveDataPath(const std::string& mount_location, u64 program_id) {
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u32 high = static_cast<u32>(program_id >> 32);
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u32 low = static_cast<u32>(program_id & 0xFFFFFFFF);
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return Common::StringFromFormat("%s%08x/%08x/data/00000001/", mount_location.c_str(), high,
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low);
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}
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std::string GetSaveDataMetadataPath(const std::string& mount_location, u64 program_id) {
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u32 high = static_cast<u32>(program_id >> 32);
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u32 low = static_cast<u32>(program_id & 0xFFFFFFFF);
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return Common::StringFromFormat("%s%08x/%08x/data/00000001.metadata", mount_location.c_str(),
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high, low);
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}
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} // namespace
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ArchiveSource_SDSaveData::ArchiveSource_SDSaveData(const std::string& sdmc_directory)
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: mount_point(GetSaveDataContainerPath(sdmc_directory)) {
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LOG_INFO(Service_FS, "Directory %s set as SaveData.", mount_point.c_str());
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}
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ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveSource_SDSaveData::Open(u64 program_id) {
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std::string concrete_mount_point = GetSaveDataPath(mount_point, program_id);
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if (!FileUtil::Exists(concrete_mount_point)) {
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// When a SaveData archive is created for the first time, it is not yet formatted and the
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// save file/directory structure expected by the game has not yet been initialized.
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// Returning the NotFormatted error code will signal the game to provision the SaveData
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// archive with the files and folders that it expects.
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return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
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ErrorSummary::InvalidState, ErrorLevel::Status);
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}
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auto archive = std::make_unique<SaveDataArchive>(std::move(concrete_mount_point));
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return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
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}
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ResultCode ArchiveSource_SDSaveData::Format(u64 program_id,
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const FileSys::ArchiveFormatInfo& format_info) {
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std::string concrete_mount_point = GetSaveDataPath(mount_point, program_id);
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FileUtil::DeleteDirRecursively(concrete_mount_point);
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FileUtil::CreateFullPath(concrete_mount_point);
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// Write the format metadata
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std::string metadata_path = GetSaveDataMetadataPath(mount_point, program_id);
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FileUtil::IOFile file(metadata_path, "wb");
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if (file.IsOpen()) {
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file.WriteBytes(&format_info, sizeof(format_info));
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return RESULT_SUCCESS;
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}
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return RESULT_SUCCESS;
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}
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ResultVal<ArchiveFormatInfo> ArchiveSource_SDSaveData::GetFormatInfo(u64 program_id) const {
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std::string metadata_path = GetSaveDataMetadataPath(mount_point, program_id);
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FileUtil::IOFile file(metadata_path, "rb");
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if (!file.IsOpen()) {
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LOG_ERROR(Service_FS, "Could not open metadata information for archive");
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// TODO(Subv): Verify error code
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return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
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ErrorSummary::InvalidState, ErrorLevel::Status);
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}
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ArchiveFormatInfo info = {};
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file.ReadBytes(&info, sizeof(info));
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return MakeResult<ArchiveFormatInfo>(info);
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}
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} // namespace FileSys
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src/core/file_sys/archive_source_sd_savedata.h
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30
src/core/file_sys/archive_source_sd_savedata.h
Normal file
@ -0,0 +1,30 @@
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// Copyright 2016 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 <memory>
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#include <string>
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#include "core/file_sys/archive_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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/// A common source of SD save data archive
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class ArchiveSource_SDSaveData {
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public:
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explicit ArchiveSource_SDSaveData(const std::string& mount_point);
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ResultVal<std::unique_ptr<ArchiveBackend>> Open(u64 program_id);
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ResultCode Format(u64 program_id, const FileSys::ArchiveFormatInfo& format_info);
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ResultVal<ArchiveFormatInfo> GetFormatInfo(u64 program_id) const;
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private:
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std::string mount_point;
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};
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} // namespace FileSys
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@ -535,7 +535,8 @@ void RegisterArchiveTypes() {
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sdmc_directory.c_str());
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// Create the SaveData archive
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auto savedata_factory = std::make_unique<FileSys::ArchiveFactory_SaveData>(sdmc_directory);
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auto sd_savedata_source = std::make_shared<FileSys::ArchiveSource_SDSaveData>(sdmc_directory);
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auto savedata_factory = std::make_unique<FileSys::ArchiveFactory_SaveData>(sd_savedata_source);
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RegisterArchiveType(std::move(savedata_factory), ArchiveIdCode::SaveData);
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auto extsavedata_factory =
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