while (true) {
      when (source.select(options)) {
        in 0..2 -> {
          completeEvent(id, type, data)
          return true
        }

        in 3..4 -> {
          source.readData(data)
        }

        in 5..7 -> {
          data.writeByte('\n'.code) // 'data' on a line of its own.
        }

        in 8..9 -> {
          id = source.readUtf8LineStrict().takeIf { it.isNotEmpty() }

	disk := er.getDisks()[0]
	fileInfoPreHeal1, err := disk.ReadVersion(context.Background(), "", bucket, object, oi1.VersionID, ReadOptions{ReadData: false, Healing: true})
	if err != nil {
		t.Fatal(err)
	}
	fileInfoPreHeal2, err := disk.ReadVersion(context.Background(), "", bucket, object, oi2.VersionID, ReadOptions{ReadData: false, Healing: true})
	if err != nil {
		t.Fatal(err)
	}

	rawFileInfos, errs := readAllRawFileInfo(ctx, disks, bucket, object, readData)
	return pickLatestQuorumFilesInfo(ctx, rawFileInfos, errs, bucket, object, readData, inclFreeVers)
}

func (er erasureObjects) getObjectFileInfo(ctx context.Context, bucket, object string, opts ObjectOptions, readData bool) (FileInfo, []FileInfo, []StorageAPI, error) {

	}
	return d.disk.ReadAll(ctx, volume, path)
}

func (d *naughtyDisk) ReadXL(ctx context.Context, volume string, path string, readData bool) (rf RawFileInfo, err error) {
	if err := d.calcError(); err != nil {
		return rf, err
	}
	return d.disk.ReadXL(ctx, volume, path, readData)
}

func (d *naughtyDisk) VerifyFile(ctx context.Context, volume, path string, fi FileInfo) (*CheckPartsResp, error) {

func readAllFileInfo(ctx context.Context, disks []StorageAPI, origbucket string, bucket, object, versionID string, readData, healing bool) ([]FileInfo, []error) {
	metadataArray := make([]FileInfo, len(disks))

	opts := ReadOptions{
		ReadData: readData,
		Healing:  healing,
	}

	g := errgroup.WithNErrs(len(disks))
	// Read `xl.meta` in parallel across disks.
	for index := range disks {

func (client *storageRESTClient) ReadXL(ctx context.Context, volume string, path string, readData bool) (rf RawFileInfo, err error) {
	ctx, cancel := context.WithTimeout(ctx, globalDriveConfig.GetMaxTimeout())
	defer cancel()

	// Use websocket when not reading data.
	if !readData {
		resp, err := storageReadXLRPC.Call(ctx, client.gridConn, grid.NewMSSWith(map[string]string{

    }

    if (requireSettings && type != TYPE_SETTINGS) {
      throw IOException("Expected a SETTINGS frame but was ${formattedType(type)}")
    }

    when (type) {
      TYPE_DATA -> readData(handler, length, flags, streamId)
      TYPE_HEADERS -> readHeaders(handler, length, flags, streamId)
      TYPE_PRIORITY -> readPriority(handler, length, flags, streamId)

	ReadVersion(ctx context.Context, origvolume, volume, path, versionID string, opts ReadOptions) (FileInfo, error)
	ReadXL(ctx context.Context, volume, path string, readData bool) (RawFileInfo, error)
	RenameData(ctx context.Context, srcVolume, srcPath string, fi FileInfo, dstVolume, dstPath string, opts RenameOptions) (RenameDataResp, error)

	// File operations.

	// Validate file path length, before reading.
	filePath := pathJoin(volumeDir, path)
	if err = checkPathLength(filePath); err != nil {
		return fi, err
	}

	readData := opts.ReadData

	buf, _, err := s.readRaw(ctx, volume, volumeDir, filePath, readData)
	if err != nil {
		if err == errFileNotFound {
			if versionID != "" {
				return fi, errFileVersionNotFound
			}
		}
		return fi, err
	}

		return p.storage.ReadAll(ctx, volume, path)
	})
}

func (p *xlStorageDiskIDCheck) ReadXL(ctx context.Context, volume string, path string, readData bool) (rf RawFileInfo, err error) {
	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadXL, volume, path)
	if err != nil {
		return RawFileInfo{}, err
	}
	defer func() {
		done(int64(len(rf.Buf)), &err)