C++ Path::DebugStr方法代码示例

ResultCode SaveDataArchive::RenameDirectory(const Path& src_path, const Path& dest_path) const {
    const PathParser path_parser_src(src_path);

    // TODO: Verify these return codes with HW
    if (!path_parser_src.IsValid()) {
        LOG_ERROR(Service_FS, "Invalid src path {}", src_path.DebugStr());
        return ERROR_INVALID_PATH;
    }

    const PathParser path_parser_dest(dest_path);

    if (!path_parser_dest.IsValid()) {
        LOG_ERROR(Service_FS, "Invalid dest path {}", dest_path.DebugStr());
        return ERROR_INVALID_PATH;
    }

    const auto src_path_full = path_parser_src.BuildHostPath(mount_point);
    const auto dest_path_full = path_parser_dest.BuildHostPath(mount_point);

    if (FileUtil::Rename(src_path_full, dest_path_full)) {
        return RESULT_SUCCESS;
    }

    // TODO(yuriks): This code probably isn't right, it'll return a Status even if the file didn't
    // exist or similar. Verify.
    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, // TODO: verify description
                      ErrorSummary::NothingHappened, ErrorLevel::Status);
}

ResultVal<std::unique_ptr<FileBackend>> SaveDataArchive::OpenFile(const Path& path,
                                                                  const Mode& mode) const {
    LOG_DEBUG(Service_FS, "called path={} mode={:01X}", path.DebugStr(), mode.hex);

    const PathParser path_parser(path);

    if (!path_parser.IsValid()) {
        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
        return ERROR_INVALID_PATH;
    }

    if (mode.hex == 0) {
        LOG_ERROR(Service_FS, "Empty open mode");
        return ERROR_UNSUPPORTED_OPEN_FLAGS;
    }

    if (mode.create_flag && !mode.write_flag) {
        LOG_ERROR(Service_FS, "Create flag set but write flag not set");
        return ERROR_UNSUPPORTED_OPEN_FLAGS;
    }

    const auto full_path = path_parser.BuildHostPath(mount_point);

    switch (path_parser.GetHostStatus(mount_point)) {
    case PathParser::InvalidMountPoint:
        LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
        return ERROR_FILE_NOT_FOUND;
    case PathParser::PathNotFound:
        LOG_ERROR(Service_FS, "Path not found {}", full_path);
        return ERROR_PATH_NOT_FOUND;
    case PathParser::FileInPath:
    case PathParser::DirectoryFound:
        LOG_ERROR(Service_FS, "Unexpected file or directory in {}", full_path);
        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
    case PathParser::NotFound:
        if (!mode.create_flag) {
            LOG_ERROR(Service_FS, "Non-existing file {} can't be open without mode create.",
                      full_path);
            return ERROR_FILE_NOT_FOUND;
        } else {
            // Create the file
            FileUtil::CreateEmptyFile(full_path);
        }
        break;
    case PathParser::FileFound:
        break; // Expected 'success' case
    }

    FileUtil::IOFile file(full_path, mode.write_flag ? "r+b" : "rb");
    if (!file.IsOpen()) {
        LOG_CRITICAL(Service_FS, "(unreachable) Unknown error opening {}", full_path);
        return ERROR_FILE_NOT_FOUND;
    }

    std::unique_ptr<DelayGenerator> delay_generator = std::make_unique<SaveDataDelayGenerator>();
    auto disk_file = std::make_unique<DiskFile>(std::move(file), mode, std::move(delay_generator));
    return MakeResult<std::unique_ptr<FileBackend>>(std::move(disk_file));
}

/**
 * Open a file specified by its path, using the specified mode
 * @param path Path relative to the archive
 * @param mode Mode to open the file with
 * @return Opened file, or nullptr
 */
std::unique_ptr<File> Archive_SDMC::OpenFile(const Path& path, const Mode mode) const {
    DEBUG_LOG(FILESYS, "called path=%s mode=%u", path.DebugStr().c_str(), mode.hex);
    File_SDMC* file = new File_SDMC(this, path, mode);
    if (!file->Open())
        return nullptr;
    return std::unique_ptr<File>(file);
}

ResultCode SaveDataArchive::DeleteFile(const Path& path) const {
    const PathParser path_parser(path);

    if (!path_parser.IsValid()) {
        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
        return ERROR_INVALID_PATH;
    }

    const auto full_path = path_parser.BuildHostPath(mount_point);

    switch (path_parser.GetHostStatus(mount_point)) {
    case PathParser::InvalidMountPoint:
        LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
        return ERROR_FILE_NOT_FOUND;
    case PathParser::PathNotFound:
        LOG_ERROR(Service_FS, "Path not found {}", full_path);
        return ERROR_PATH_NOT_FOUND;
    case PathParser::FileInPath:
    case PathParser::DirectoryFound:
    case PathParser::NotFound:
        LOG_ERROR(Service_FS, "File not found {}", full_path);
        return ERROR_FILE_NOT_FOUND;
    case PathParser::FileFound:
        break; // Expected 'success' case
    }

    if (FileUtil::Delete(full_path)) {
        return RESULT_SUCCESS;
    }

    LOG_CRITICAL(Service_FS, "(unreachable) Unknown error deleting {}", full_path);
    return ERROR_FILE_NOT_FOUND;
}

std::unique_ptr<DirectoryBackend> DiskArchive::OpenDirectory(const Path& path) const {
    LOG_DEBUG(Service_FS, "called path=%s", path.DebugStr().c_str());
    auto directory = Common::make_unique<DiskDirectory>(*this, path);
    if (!directory->Open())
        return nullptr;
    return std::move(directory);
}

/**
 * Open a directory specified by its path
 * @param path Path relative to the archive
 * @return Opened directory, or nullptr
 */
std::unique_ptr<Directory> Archive_SDMC::OpenDirectory(const Path& path) const {
    LOG_DEBUG(Service_FS, "called path=%s", path.DebugStr().c_str());
    Directory_SDMC* directory = new Directory_SDMC(this, path);
    if (!directory->Open())
        return nullptr;
    return std::unique_ptr<Directory>(directory);
}

static ResultCode DeleteDirectoryHelper(const Path& path, const std::string& mount_point,
                                        T deleter) {
    const PathParser path_parser(path);

    if (!path_parser.IsValid()) {
        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
        return ERROR_INVALID_PATH;
    }

    if (path_parser.IsRootDirectory())
        return ERROR_DIRECTORY_NOT_EMPTY;

    const auto full_path = path_parser.BuildHostPath(mount_point);

    switch (path_parser.GetHostStatus(mount_point)) {
    case PathParser::InvalidMountPoint:
        LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
        return ERROR_PATH_NOT_FOUND;
    case PathParser::PathNotFound:
    case PathParser::NotFound:
        LOG_ERROR(Service_FS, "Path not found {}", full_path);
        return ERROR_PATH_NOT_FOUND;
    case PathParser::FileInPath:
    case PathParser::FileFound:
        LOG_ERROR(Service_FS, "Unexpected file or directory {}", full_path);
        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
    case PathParser::DirectoryFound:
        break; // Expected 'success' case
    }

    if (deleter(full_path)) {
        return RESULT_SUCCESS;
    }

    LOG_ERROR(Service_FS, "Directory not empty {}", full_path);
    return ERROR_DIRECTORY_NOT_EMPTY;
}

ResultCode SaveDataArchive::CreateDirectory(const Path& path) const {
    const PathParser path_parser(path);

    if (!path_parser.IsValid()) {
        LOG_ERROR(Service_FS, "Invalid path {}", path.DebugStr());
        return ERROR_INVALID_PATH;
    }

    const auto full_path = path_parser.BuildHostPath(mount_point);

    switch (path_parser.GetHostStatus(mount_point)) {
    case PathParser::InvalidMountPoint:
        LOG_CRITICAL(Service_FS, "(unreachable) Invalid mount point {}", mount_point);
        return ERROR_FILE_NOT_FOUND;
    case PathParser::PathNotFound:
        LOG_ERROR(Service_FS, "Path not found {}", full_path);
        return ERROR_PATH_NOT_FOUND;
    case PathParser::FileInPath:
        LOG_ERROR(Service_FS, "Unexpected file in path {}", full_path);
        return ERROR_UNEXPECTED_FILE_OR_DIRECTORY;
    case PathParser::DirectoryFound:
    case PathParser::FileFound:
        LOG_ERROR(Service_FS, "{} already exists", full_path);
        return ERROR_DIRECTORY_ALREADY_EXISTS;
    case PathParser::NotFound:
        break; // Expected 'success' case
    }

    if (FileUtil::CreateDir(mount_point + path.AsString())) {
        return RESULT_SUCCESS;
    }

    LOG_CRITICAL(Service_FS, "(unreachable) Unknown error creating {}", mount_point);
    return ResultCode(ErrorDescription::NoData, ErrorModule::FS, ErrorSummary::Canceled,
                      ErrorLevel::Status);
}