}

// Returns the part file name which matches the partNumber and etag.
func getPartFile(entriesTrie *trie.Trie, partNumber int, etag string) (partFile string) {
	for _, match := range entriesTrie.PrefixMatch(fmt.Sprintf("%.5d.%s.", partNumber, etag)) {
		partFile = match
		break
	}
	return partFile
}

func partNumberToRangeSpec(oi ObjectInfo, partNumber int) *HTTPRangeSpec {
	if oi.Size == 0 || len(oi.Parts) == 0 {

}

// InvalidPart One or more of the specified parts could not be found
type InvalidPart struct {
	PartNumber int
	ExpETag    string
	GotETag    string
}

func (e InvalidPart) Error() string {
	return fmt.Sprintf("Specified part could not be found. PartNumber %d, Expected %s, got %s",
		e.PartNumber, e.ExpETag, e.GotETag)
}

// PartTooSmall - error if part size is less than 5MB.
type PartTooSmall struct {

	}

	cachedResult := globalCacheConfig.Enabled() && opts.VersionID == ""

	var update bool
	if cachedResult {
		rc := &cache.CondCheck{}
		h := r.Header.Clone()
		if opts.PartNumber > 0 {
			h.Set(xhttp.PartNumber, strconv.Itoa(opts.PartNumber))
		}
		rc.Init(bucket, object, h)

		ci, err := globalCacheConfig.Get(rc)
		if ci != nil {
			tgs, ok := ci.Metadata[xhttp.AmzObjectTagging]
			if ok {

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "PartNumber":
			z.PartNumber, err = dc.ReadInt()
			if err != nil {
				err = msgp.WrapError(err, "PartNumber")
				return
			}
		case "Algorithm":
			{
				var zb0002 uint
				zb0002, err = dc.ReadUint()
				if err != nil {

	Checksums  map[string]string `json:"crc,omitempty" msg:"crc,omitempty"` // Content Checksums
}

// ChecksumInfo - carries checksums of individual scattered parts per disk.
type ChecksumInfo struct {
	PartNumber int
	Algorithm  BitrotAlgorithm
	Hash       []byte
}

type checksumInfoJSON struct {
	Name      string `json:"name"`
	Algorithm string `json:"algorithm"`
	Hash      string `json:"hash,omitempty"`
}

func getPutObjectPartURL(endPoint, bucketName, objectName, uploadID, partNumber string) string {
	queryValues := url.Values{}
	queryValues.Set("uploadId", uploadID)
	queryValues.Set("partNumber", partNumber)
	return makeTestTargetURL(endPoint, bucketName, objectName, queryValues)
}

func getCopyObjectPartURL(endPoint, bucketName, objectName, uploadID, partNumber string) string {
	queryValues := url.Values{}

		if err1 != nil {
			t.Fatalf("Failed to upload a part - %v", err1)
		}
		uploadedParts = append(uploadedParts, CompletePart{
			PartNumber: pInfo.PartNumber,
			ETag:       pInfo.ETag,
		})
	}

	_, err = objLayer.CompleteMultipartUpload(ctx, bucket, object, res.UploadID, uploadedParts, ObjectOptions{})
	if err != nil {

			HandlerFunc(s3APIMiddleware(api.CopyObjectPartHandler)).
			Queries("partNumber", "{partNumber:.*}", "uploadId", "{uploadId:.*}")
		// PutObjectPart
		router.Methods(http.MethodPut).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.PutObjectPartHandler, traceHdrsS3HFlag)).
			Queries("partNumber", "{partNumber:.*}", "uploadId", "{uploadId:.*}")
		// ListObjectParts

	etag, err := hex.DecodeString(prefix)
	if err != nil {
		return nil, err
	}
	partNumber, err := strconv.Atoi(suffix[1:]) // suffix[0] == '-' Therefore, we start parsing at suffix[1]
	if err != nil {
		return nil, err
	}
	if strict && (partNumber == 0 || partNumber > 10000) {
		return nil, fmt.Errorf("etag: invalid part number %d", partNumber)
	}
	return ETag(append(etag, suffix...)), nil

			prefer := make([]bool, len(latestDisks))
			checksumAlgo := erasureInfo.GetChecksumInfo(partNumber).Algorithm
			for i, disk := range latestDisks {
				if disk == OfflineDisk {
					continue
				}
				checksumInfo := copyPartsMetadata[i].Erasure.GetChecksumInfo(partNumber)
				partPath := pathJoin(object, srcDataDir, fmt.Sprintf("part.%d", partNumber))