d26c6b3212
Format information is currently only implemented for the ExtSaveData, SharedExtSaveData and SaveData archives, the information is stored in a file alongside the root folder of the archive.
91 lines
3.8 KiB
C++
91 lines
3.8 KiB
C++
// Copyright 2014 Citra Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <algorithm>
|
|
|
|
#include "common/common_types.h"
|
|
#include "common/file_util.h"
|
|
#include "common/logging/log.h"
|
|
#include "common/make_unique.h"
|
|
#include "common/string_util.h"
|
|
|
|
#include "core/file_sys/archive_savedata.h"
|
|
#include "core/file_sys/disk_archive.h"
|
|
#include "core/hle/kernel/process.h"
|
|
#include "core/hle/service/fs/archive.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// FileSys namespace
|
|
|
|
namespace FileSys {
|
|
|
|
static std::string GetSaveDataContainerPath(const std::string& sdmc_directory) {
|
|
return Common::StringFromFormat("%sNintendo 3DS/%s/%s/title/", sdmc_directory.c_str(),
|
|
SYSTEM_ID.c_str(), SDCARD_ID.c_str());
|
|
}
|
|
|
|
static std::string GetSaveDataPath(const std::string& mount_location, u64 program_id) {
|
|
u32 high = program_id >> 32;
|
|
u32 low = program_id & 0xFFFFFFFF;
|
|
return Common::StringFromFormat("%s%08x/%08x/data/00000001/", mount_location.c_str(), high, low);
|
|
}
|
|
|
|
static std::string GetSaveDataMetadataPath(const std::string& mount_location, u64 program_id) {
|
|
u32 high = program_id >> 32;
|
|
u32 low = program_id & 0xFFFFFFFF;
|
|
return Common::StringFromFormat("%s%08x/%08x/data/00000001.metadata", mount_location.c_str(), high, low);
|
|
}
|
|
|
|
ArchiveFactory_SaveData::ArchiveFactory_SaveData(const std::string& sdmc_directory)
|
|
: mount_point(GetSaveDataContainerPath(sdmc_directory)) {
|
|
LOG_INFO(Service_FS, "Directory %s set as SaveData.", this->mount_point.c_str());
|
|
}
|
|
|
|
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SaveData::Open(const Path& path) {
|
|
std::string concrete_mount_point = GetSaveDataPath(mount_point, Kernel::g_current_process->codeset->program_id);
|
|
if (!FileUtil::Exists(concrete_mount_point)) {
|
|
// When a SaveData archive is created for the first time, it is not yet formatted
|
|
// and the save file/directory structure expected by the game has not yet been initialized.
|
|
// Returning the NotFormatted error code will signal the game to provision the SaveData archive
|
|
// with the files and folders that it expects.
|
|
return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
|
|
ErrorSummary::InvalidState, ErrorLevel::Status);
|
|
}
|
|
|
|
auto archive = Common::make_unique<DiskArchive>(std::move(concrete_mount_point));
|
|
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
|
|
}
|
|
|
|
ResultCode ArchiveFactory_SaveData::Format(const Path& path, const FileSys::ArchiveFormatInfo& format_info) {
|
|
std::string concrete_mount_point = GetSaveDataPath(mount_point, Kernel::g_current_process->codeset->program_id);
|
|
FileUtil::DeleteDirRecursively(concrete_mount_point);
|
|
FileUtil::CreateFullPath(concrete_mount_point);
|
|
|
|
// Write the format metadata
|
|
std::string metadata_path = GetSaveDataMetadataPath(mount_point, Kernel::g_current_process->codeset->program_id);
|
|
FileUtil::IOFile file(metadata_path, "wb");
|
|
|
|
if (file.IsOpen()) {
|
|
file.WriteBytes(&format_info, sizeof(format_info));
|
|
return RESULT_SUCCESS;
|
|
}
|
|
return RESULT_SUCCESS;
|
|
}
|
|
|
|
ResultVal<ArchiveFormatInfo> ArchiveFactory_SaveData::GetFormatInfo(const Path& path) const {
|
|
std::string metadata_path = GetSaveDataMetadataPath(mount_point, Kernel::g_current_process->codeset->program_id);
|
|
FileUtil::IOFile file(metadata_path, "rb");
|
|
|
|
if (file.IsOpen()) {
|
|
ArchiveFormatInfo info;
|
|
file.ReadBytes(&info, sizeof(info));
|
|
return MakeResult<ArchiveFormatInfo>(info);
|
|
}
|
|
|
|
LOG_ERROR(Service_FS, "Could not open metadata information for archive");
|
|
// TODO(Subv): Verify error code
|
|
return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS, ErrorSummary::InvalidState, ErrorLevel::Status);
|
|
}
|
|
|
|
} // namespace FileSys
|