l.UpdatedAt = t // update to the latest time index

	if since >= 24 {
		l.Bins = [24]tierStats{}
		return
	}

	for lastIdx != idx {
		lastIdx = (lastIdx + 1) % 24
		l.Bins[lastIdx] = tierStats{}
	}
}

func (l *lastDayTierStats) clone() lastDayTierStats {
	clone := lastDayTierStats{
		UpdatedAt: l.UpdatedAt,
	}
	copy(clone.Bins[:], l.Bins[:])
	return clone
}

// errDiskAccessDenied - we don't have write permissions on disk.
var errDiskAccessDenied = StorageErr("drive access denied")

// errFileNotFound - cannot find the file.
var errFileNotFound = StorageErr("file not found")

// errFileNotFound - cannot find requested file version.
var errFileVersionNotFound = StorageErr("file version not found")

// errTooManyOpenFiles - too many open files.

		lifeCycle:  &lc,
	}

	modTime := time.Now()
	uuids := make([]uuid.UUID, 5)
	for i := range uuids {
		uuids[i] = uuid.UUID([16]byte{15: uint8(i + 1)})
	}
	fivs := make([]FileInfo, 5)
	for i := 0; i < 5; i++ {
		fivs[i] = FileInfo{
			Volume:      bucket,
			Name:        obj,
			VersionID:   uuids[i].String(),
			IsLatest:    i == 0,
			ModTime:     modTime.Add(-1 * time.Duration(i) * time.Minute),

			isNil: true,
		},
		{
			path:  "/nonexistying",
			isNil: true,
		},
	}

	for _, w := range want {
		p := path.Join(bucket, w.path)
		t.Run(p, func(t *testing.T) {
			e := got.find(p)
			if w.isNil {
				if e != nil {
					t.Error("want nil, got", e)
				}
				return
			}
			if e == nil {
				t.Fatal("got nil result")
			}
			if w.flatten {
				*e = got.flatten(*e)

	},
	ErrParseExpectedDatePart: {
		Code:           "ParseExpectedDatePart",
		Description:    "Did not find the expected date part in the SQL expression.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseExpectedKeyword: {
		Code:           "ParseExpectedKeyword",
		Description:    "Did not find the expected keyword in the SQL expression.",
		HTTPStatusCode: http.StatusBadRequest,
	},

					}
				}
				continue
			}
			fivs, err := entry.fileInfoVersions(bucket)
			if err != nil {
				return
			}

			// Note: entry.fileInfoVersions returns versions sorted in reverse chronological order based on ModTime
			if opts.VersionsSort == WalkVersionsSortAsc {
				versionsSorter(fivs.Versions).reverse()
			}

			for _, version := range fivs.Versions {
				if opts.Filter != nil {

	}
	// Avoid bugs in long file names
	// https://github.com/golang/tools/commit/5f9a5413737ba4b4f692214aebee582b47c8be74
	nameLen := bytes.IndexByte(nameBuf[:limit], 0)
	if nameLen < 0 {
		return 0, fmt.Errorf("failed to find terminating 0 byte in dirent")
	}
	return uint64(nameLen), nil

			if z.checkIfRebalanceDone(poolIdx) {
				return
			}

			fivs, err := entry.fileInfoVersions(bucket)
			if err != nil {
				return
			}

			// We need a reversed order for rebalance,
			// to create the appropriate stack.
			versionsSorter(fivs.Versions).reverse()

			var rebalanced, expired int
			for _, version := range fivs.Versions {
				// Skip transitioned objects for now. TBD

				files = append(files, pattern)
				continue
			}
			found, err := filepathx.Glob(pattern)
			if err != nil {
				return err
			}
			if len(found) == 0 {
				return fmt.Errorf("unable to find file %v", pattern)
			}
			files = append(files, found...)
		}
		if len(files) == 0 {
			return fmt.Errorf("no files found")
		}
		if len(files) > 1 || strings.HasSuffix(files[0], ".zip") {
			ndjson = true

		defaultSha256Cksum = emptySHA256
		v, ok = r.Header[xhttp.AmzContentSha256]
	}

	// We found 'X-Amz-Content-Sha256' return the captured value.
	if ok {
		return v[0]
	}

	// We couldn't find 'X-Amz-Content-Sha256'.
	return defaultSha256Cksum
}

// isValidRegion - verify if incoming region value is valid with configured Region.
func isValidRegion(reqRegion string, confRegion string) bool {