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Merge pull request #604 from Subv/arc_ssd

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Archives: Properly implemented the SystemSaveData archive.
This commit is contained in:
Yuri Kunde Schlesner 2015-02-25 22:35:55 -03:00
commit 1b5ee96797
4 changed files with 70 additions and 45 deletions
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33
src/core/file_sys/archive_systemsavedata.cpp
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@ -6,9 +6,9 @@
#include "common/common_types.h"
#include "common/file_util.h"
#include "common/make_unique.h"
#include "core/file_sys/archive_systemsavedata.h"
#include "core/file_sys/disk_archive.h"
#include "core/hle/service/fs/archive.h"
#include "core/settings.h"
@ -17,9 +17,11 @@
namespace FileSys {
static std::string GetSystemSaveDataPath(const std::string& mount_point, u64 save_id) {
u32 save_high = static_cast<u32>((save_id >> 32) & 0xFFFFFFFF);
u32 save_low = static_cast<u32>(save_id & 0xFFFFFFFF);
static std::string GetSystemSaveDataPath(const std::string& mount_point, const Path& path) {
std::vector<u8> vec_data = path.AsBinary();
const u32* data = reinterpret_cast<const u32*>(vec_data.data());
u32 save_low = data[1];
u32 save_high = data[0];
return Common::StringFromFormat("%s%08X/%08X/", mount_point.c_str(), save_low, save_high);
}
@ -27,18 +29,25 @@ static std::string GetSystemSaveDataContainerPath(const std::string& mount_point
return Common::StringFromFormat("%sdata/%s/sysdata/", mount_point.c_str(), SYSTEM_ID.c_str());
}
Archive_SystemSaveData::Archive_SystemSaveData(const std::string& mount_point, u64 save_id)
: DiskArchive(GetSystemSaveDataPath(GetSystemSaveDataContainerPath(mount_point), save_id)) {
LOG_INFO(Service_FS, "Directory %s set as SystemSaveData.", this->mount_point.c_str());
ArchiveFactory_SystemSaveData::ArchiveFactory_SystemSaveData(const std::string& nand_path)
: base_path(GetSystemSaveDataContainerPath(nand_path)) {
}
bool Archive_SystemSaveData::Initialize() {
if (!FileUtil::CreateFullPath(mount_point)) {
LOG_ERROR(Service_FS, "Unable to create SystemSaveData path.");
return false;
ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_SystemSaveData::Open(const Path& path) {
std::string fullpath = GetSystemSaveDataPath(base_path, path);
if (!FileUtil::Exists(fullpath)) {
// TODO(Subv): Check error code, this one is probably wrong
return ResultCode(ErrorDescription::FS_NotFormatted, ErrorModule::FS,
ErrorSummary::InvalidState, ErrorLevel::Status);
}
auto archive = Common::make_unique<DiskArchive>(fullpath);
return MakeResult<std::unique_ptr<ArchiveBackend>>(std::move(archive));
}
return true;
ResultCode ArchiveFactory_SystemSaveData::Format(const Path& path) {
std::string fullpath = GetSystemSaveDataPath(base_path, path);
FileUtil::CreateFullPath(fullpath);
return RESULT_SUCCESS;
}
} // namespace FileSys

14
src/core/file_sys/archive_systemsavedata.h
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@ -15,17 +15,17 @@
namespace FileSys {
/// File system interface to the SystemSaveData archive
class Archive_SystemSaveData final : public DiskArchive {
class ArchiveFactory_SystemSaveData final : public ArchiveFactory {
public:
Archive_SystemSaveData(const std::string& mount_point, u64 save_id);
ArchiveFactory_SystemSaveData(const std::string& mount_point);
/**
* Initialize the archive.
* @return true if it initialized successfully
*/
bool Initialize();
ResultVal<std::unique_ptr<ArchiveBackend>> Open(const Path& path) override;
ResultCode Format(const Path& path) override;
std::string GetName() const override { return "SystemSaveData"; }
private:
std::string base_path;
};
} // namespace FileSys

64
src/core/hle/service/cfg/cfg.cpp
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@ -4,8 +4,8 @@
#include <algorithm>
#include "common/make_unique.h"
#include "core/file_sys/archive_systemsavedata.h"
#include "core/hle/service/cfg/cfg.h"
#include "core/hle/service/fs/archive.h"
namespace Service {
namespace CFG {
@ -36,7 +36,8 @@ const std::array<float, 8> STEREO_CAMERA_SETTINGS = {
static const u32 CONFIG_SAVEFILE_SIZE = 0x8000;
static std::array<u8, CONFIG_SAVEFILE_SIZE> cfg_config_file_buffer;
static std::unique_ptr<FileSys::Archive_SystemSaveData> cfg_system_save_data;
static Service::FS::ArchiveHandle cfg_system_save_data_archive;
static const std::vector<u8> cfg_system_savedata_id = { 0x00, 0x00, 0x00, 0x00, 0x17, 0x00, 0x01, 0x00 };
ResultCode GetConfigInfoBlock(u32 block_id, u32 size, u32 flag, u8* output) {
// Read the header
@ -97,19 +98,22 @@ ResultCode CreateConfigInfoBlk(u32 block_id, u16 size, u16 flags, const u8* data
ResultCode DeleteConfigNANDSaveFile() {
FileSys::Path path("config");
if (cfg_system_save_data->DeleteFile(path))
return RESULT_SUCCESS;
return ResultCode(-1); // TODO(Subv): Find the right error code
return Service::FS::DeleteFileFromArchive(cfg_system_save_data_archive, path);
}
ResultCode UpdateConfigNANDSavegame() {
FileSys::Mode mode = {};
mode.write_flag = 1;
mode.create_flag = 1;
FileSys::Path path("config");
auto file = cfg_system_save_data->OpenFile(path, mode);
ASSERT_MSG(file != nullptr, "could not open file");
file->Write(0, CONFIG_SAVEFILE_SIZE, 1, cfg_config_file_buffer.data());
auto config_result = Service::FS::OpenFileFromArchive(cfg_system_save_data_archive, path, mode);
ASSERT_MSG(config_result.Succeeded(), "could not open file");
auto config = config_result.MoveFrom();
config->backend->Write(0, CONFIG_SAVEFILE_SIZE, 1, cfg_config_file_buffer.data());
return RESULT_SUCCESS;
}
@ -158,27 +162,33 @@ ResultCode FormatConfig() {
}
void CFGInit() {
// TODO(Subv): In the future we should use the FS service to query this archive,
// currently it is not possible because you can only have one open archive of the same type at any time
std::string nand_directory = FileUtil::GetUserPath(D_NAND_IDX);
cfg_system_save_data = Common::make_unique<FileSys::Archive_SystemSaveData>(
nand_directory, CFG_SAVE_ID);
if (!cfg_system_save_data->Initialize()) {
LOG_CRITICAL(Service_CFG, "Could not initialize SystemSaveData archive for the CFG:U service");
return;
// Open the SystemSaveData archive 0x00010017
FileSys::Path archive_path(cfg_system_savedata_id);
auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::SystemSaveData, archive_path);
// If the archive didn't exist, create the files inside
if (archive_result.Code().description == ErrorDescription::FS_NotFormatted) {
// Format the archive to create the directories
Service::FS::FormatArchive(Service::FS::ArchiveIdCode::SystemSaveData, archive_path);
// Open it again to get a valid archive now that the folder exists
archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::SystemSaveData, archive_path);
}
// TODO(Subv): All this code should be moved to cfg:i,
// it's only here because we do not currently emulate the lower level code that uses that service
// Try to open the file in read-only mode to check its existence
FileSys::Mode mode = {};
mode.read_flag = 1;
FileSys::Path path("config");
auto file = cfg_system_save_data->OpenFile(path, mode);
ASSERT_MSG(archive_result.Succeeded(), "Could not open the CFG SystemSaveData archive!");
// Load the config if it already exists
if (file != nullptr) {
file->Read(0, CONFIG_SAVEFILE_SIZE, cfg_config_file_buffer.data());
cfg_system_save_data_archive = *archive_result;
FileSys::Path config_path("config");
FileSys::Mode open_mode = {};
open_mode.read_flag = 1;
auto config_result = Service::FS::OpenFileFromArchive(*archive_result, config_path, open_mode);
// Read the file if it already exists
if (config_result.Succeeded()) {
auto config = config_result.MoveFrom();
config->backend->Read(0, CONFIG_SAVEFILE_SIZE, cfg_config_file_buffer.data());
return;
}
@ -186,10 +196,12 @@ void CFGInit() {
// TODO(Subv): Initialize this directly in the variable when MSVC supports char16_t string literals
CONSOLE_USERNAME_BLOCK.ng_word = 0;
CONSOLE_USERNAME_BLOCK.zero = 0;
// Copy string to buffer and pad with zeros at the end
auto size = Common::UTF8ToUTF16(CONSOLE_USERNAME).copy(CONSOLE_USERNAME_BLOCK.username, 0x14);
std::fill(std::begin(CONSOLE_USERNAME_BLOCK.username) + size,
std::end(CONSOLE_USERNAME_BLOCK.username), 0);
FormatConfig();
}

4
src/core/hle/service/fs/archive.cpp
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@ -18,6 +18,7 @@
#include "core/file_sys/archive_savedata.h"
#include "core/file_sys/archive_savedatacheck.h"
#include "core/file_sys/archive_sdmc.h"
#include "core/file_sys/archive_systemsavedata.h"
#include "core/file_sys/directory_backend.h"
#include "core/hle/service/fs/archive.h"
#include "core/hle/result.h"
@ -449,6 +450,9 @@ void ArchiveInit() {
// Create the SaveDataCheck archive, basically a small variation of the RomFS archive
auto savedatacheck_factory = Common::make_unique<FileSys::ArchiveFactory_SaveDataCheck>(nand_directory);
RegisterArchiveType(std::move(savedatacheck_factory), ArchiveIdCode::SaveDataCheck);
auto systemsavedata_factory = Common::make_unique<FileSys::ArchiveFactory_SystemSaveData>(nand_directory);
RegisterArchiveType(std::move(systemsavedata_factory), ArchiveIdCode::SystemSaveData);
}
/// Shutdown archives