val b0 = this[index].code
  val b1 = this[index + 1].code
  return (b0 shl 7) + b1
}

/**
 * An extremely generic binary search that doesn't know what data it's searching over. The caller
 * provides indexes and a comparison function, and this calls that function iteratively.
 *
 * @return the index of the match. If no match is found this is `(-1 - insertionPoint)`, where the

// client did not calculate sha256 of the payload and there is a trailer.
const unsignedPayloadTrailer = "STREAMING-UNSIGNED-PAYLOAD-TRAILER"

// skipContentSha256Cksum returns true if caller needs to skip
// payload checksum, false if not.
func skipContentSha256Cksum(r *http.Request) bool {
	var (
		v  []string
		ok bool
	)

	if isRequestPresignedSignatureV4(r) {

   * most-significant bytes.
   *
   * @since 14.0 (since 11.0 as {@code Hashing.padToLong(HashCode)})
   */
  public abstract long padToLong();

  /**
   * Returns the value of this hash code as a byte array. The caller may modify the byte array;
   * changes to it will <i>not</i> be reflected in this {@code HashCode} object or any other arrays
   * returned by this method.
   */
  // TODO(user): consider ByteString here, when that is available

    return warmUp(cache, WARMUP_MIN, WARMUP_MAX);
  }

  /**
   * Returns the entries that were added to the map, so they won't fall out of a map with weak or
   * soft references until the caller drops the reference to the returned entries.
   */
  private List<Entry<Object, Object>> warmUp(
      LoadingCache<Object, Object> cache, int minimum, int maximum) {

		if !ok {
			// No more resources for UID, but we did update at least one.
			return true, nil
		}
	}
}

// Similar to removeEntry but only removes an entry only if the lock entry exists in map.
// Caller must hold 'l.mutex' lock.
func (l *localLocker) expireOldLocks(interval time.Duration) {
	defer l.getMutex()()

	var readers, writers int32
	for k, lris := range l.lockMap {
		modified := false

    }
  }

  /**
   * Views the array as an immutable list. The array must have only {@code E} elements.
   *
   * <p>The array must be internally created.
   */
  @SuppressWarnings("unchecked") // caller is reponsible for getting this right
  static <E> ImmutableList<E> asImmutableList(Object[] elements) {
    return unsafeDelegateList((List) Arrays.asList(elements));
  }

	"github.com/valyala/bytebufferpool"
)

//go:generate msgp -file $GOFILE

// WalkDirOptions provides options for WalkDir operations.
type WalkDirOptions struct {
	// Bucket to scanner
	Bucket string

	// Directory inside the bucket.
	BaseDir string

	// Do a full recursive scan.
	Recursive bool

	// ReportNotFound will return errFileNotFound if all disks reports the BaseDir cannot be found.

   * auth param in the challenge at key null. Invalid headers and challenges are ignored.
   * No semantic validation is done, for example that `Basic` auth must have a `realm`
   * auth param, this is up to the caller that interprets these challenges.
   */
  fun challenges(): List<Challenge> {
    return headers.parseChallenges(
      when (code) {
        HTTP_UNAUTHORIZED -> "WWW-Authenticate"

	}

	// Collect disks we can use.
	disks, healing := er.getOnlineDisksWithHealing(false)
	if len(disks) == 0 {
		scannerLogIf(ctx, errors.New("data-scanner: all drives are offline or being healed, skipping scanner cycle"))
		return nil
	}

	// Load bucket totals
	oldCache := dataUsageCache{}
	if err := oldCache.load(ctx, er, dataUsageCacheName); err != nil {
		return err
	}

	// New cache..

   *
   * If the response body is closed before the response body is exhausted, this is invoked at the
   * time it is closed. In such calls [byteCount] is the number of bytes returned to the
   * application. This may be smaller than the resource's byte count if were read to completion.
   *
   * This method is always invoked after [responseBodyStart].
   */
  open fun responseBodyEnd(
    call: Call,
    byteCount: Long,
  ) {