// These properties are guarded by [lock].

  /**
   * If true, no new exchanges can be created on this connection. It is necessary to set this to
   * true when removing a connection from the pool; otherwise a racing caller might get it from the
   * pool when it shouldn't. Symmetrically, this must always be checked before returning a
   * connection from the pool.
   *
   * Once true this is always true. Guarded by this.
   */

    this.futures = checkNotNull(futures);
    this.allMustSucceed = allMustSucceed;
    this.collectsValues = collectsValues;
  }

  @Override
  @SuppressWarnings("Interruption") // We are propagating an interrupt from a caller.
  protected final void afterDone() {
    super.afterDone();

    @RetainedLocalRef ImmutableCollection<? extends Future<?>> localFutures = futures;
    releaseResources(OUTPUT_FUTURE_DONE); // nulls out `futures`

pkg math/rand, type Source64 interface, Seed(int64)
pkg math/rand, type Source64 interface, Uint64() uint64
pkg net/http, const TrailerPrefix ideal-string
pkg net/http, const TrailerPrefix = "Trailer:"
pkg net/http/httptrace, type ClientTrace struct, TLSHandshakeDone func(tls.ConnectionState, error)
pkg net/http/httptrace, type ClientTrace struct, TLSHandshakeStart func()

	return valid
}

// isTierNameInUse returns tier type and true if there exists a remote tier by
// name tierName, otherwise returns madmin.Unsupported and false. N B this
// function is meant for internal use, where the caller is expected to take
// appropriate locks.
func (config *TierConfigMgr) isTierNameInUse(tierName string) (madmin.TierType, bool) {
	if t, ok := config.Tiers[tierName]; ok {
		return t.Type, true
	}

			return
		}
		return
	}
}

// listObjectsV2InArchive generates S3 listing result ListObjectsV2Info from zip file, all parameters are already validated by the caller.
func listObjectsV2InArchive(ctx context.Context, objectAPI ObjectLayer, bucket, prefix, token, delimiter string, maxKeys int, startAfter string, h http.Header) (ListObjectsV2Info, error) {

func (h *metrics) setConnFailure(reqStartTime time.Time) {
	h.Lock()
	defer h.Unlock()
	h.LastCheckFailure = reqStartTime
}

func (h *metrics) updateLastFullMinute(currReqMinute time.Time) {
	// Assumes the caller has h.Lock()'ed
	h.lastFullMinute = h.currentMinute
	h.currentMinute = serviceRTTMinuteStats{
		statsTime: currReqMinute,
	}
}

   * 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 disconnect(hard, true);
    }


    /**
     * Disconnect the transport
     * 
     * @param hard
     * @param inUse
     *            whether the caller is holding a usage reference on the transport
     * @return whether conenction was in use
     * @throws IOException
     */
    public synchronized boolean disconnect ( boolean hard, boolean inUse ) throws IOException {

	PreserveETag                        string    // preserves this etag during a PUT call.
	NoLock                              bool      // indicates to lower layers if the caller is expecting to hold locks.
	ProxyRequest                        bool      // only set for GET/HEAD in active-active replication scenario

		// side-channel check has failed, we shall take
		// the client offline in such situations.
		// generally all implementations should simply return
		// 403, but in situations where there is a dependency
		// with the caller to take the client offline purpose
		// fully it should make sure to respond with '412'
		// instead, see cmd/storage-rest-server.go for ideas.
		if c.HealthCheckFn != nil && resp.StatusCode == http.StatusPreconditionFailed {