* perform actual validation of IP addresses, see the {@link InetAddresses#forString(String)}
   * method.
   *
   * @return {@code this}, to enable chaining of calls.
   * @throws IllegalArgumentException if bracketless IPv6 is detected.
   */
  @CanIgnoreReturnValue
  public HostAndPort requireBracketsForIPv6() {
    checkArgument(!hasBracketlessColons, "Possible bracketless IPv6 literal: %s", host);
    return this;
  }

  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
 *     inserting the element at `insertionPoint` will retain sorted order.
 */

	t.mu.RLock()
	defer t.mu.RUnlock()

	if t.requestsPool == nil {
		return nil
	}

	return t.requestsPool
}

// maxClients throttles the S3 API calls
func maxClients(f http.HandlerFunc) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		globalHTTPStats.incS3RequestsIncoming()

		if r.Header.Get(globalObjectPerfUserMetadata) == "" {

     *
     * - If the stack overflowed before set()/setValue() could even store the result in the output
     * Future, then a call setException() would likely also overflow.
     *
     * - If the stack overflowed after set()/setValue() stored its result, then a call to
     * setException() will be a no-op because the Future is already done.
     *

type LockContext struct {
	ctx    context.Context
	cancel context.CancelFunc
}

// Context returns lock context
func (l LockContext) Context() context.Context {
	return l.ctx
}

// Cancel function calls cancel() function
func (l LockContext) Cancel() {
	if l.cancel != nil {
		l.cancel()
	}
}

// newNSLock - return a new name space lock map.
func newNSLock(isDistErasure bool) *nsLockMap {
	nsMutex := nsLockMap{

   * the {@link ByteSource} returned by {@link #asByteSource} is garbage collected. Prefer to {@link
   * #reset} the stream explicitly, rather than rely on garbage collection: If you call {@link
   * #reset} explicitly, you can call it more promptly, and you can appropriately handle any
   * exception that results.
   *
   * @param fileThreshold the number of bytes before the stream should switch to buffering to a file

     * the current thread is interrupted before or during the call, even if the value is already
     * available.
     *
     * @throws InterruptedException if the current thread was interrupted before or during the call
     *     (optional but recommended).
     * @throws CancellationException {@inheritDoc}
     */
    @CanIgnoreReturnValue

      @Nullable Object value;
      @Nullable ValueHolder next;
    }

    /**
     * Holder object for values that cannot be null or empty (will be printed unconditionally). This
     * helps to shortcut most calls to isEmpty(), which is important because the check for emptiness
     * is relatively expensive. Use a subtype so this also doesn't need any extra storage.
     */

     */
    ContiguousSet<Integer> enormous = ContiguousSet.create(Range.<Integer>all(), integers());
    assertTrue(enormous instanceof RegularContiguousSet);
    // We can't use reserializeAndAssert because it calls hashCode, which is enormously slow.
    ContiguousSet<Integer> enormousReserialized = reserialize(enormous);
    assertEquals(enormous, enormousReserialized);
  }

     * [replying to the stream][Http2Stream.writeHeaders] or [closing it][Http2Stream.close]. This
     * response does not need to be synchronous.
     *
     * Multiple calls to this method may be made concurrently.
     */
    @Throws(IOException::class)
    abstract fun onStream(stream: Http2Stream)

    /**