Method isClosing

lib/host-connection-pool.js:383–385

* Gets a boolean indicating if the pool is being closed / shutting down or has been shutdown.

()

   * Gets a boolean indicating if the pool is being closed / shutting down or has been shutdown.
   */
  isClosing() {
    return this._state !== state.initial;
  }

  /**
   * Gracefully waits for all in-flight requests to finish and closes the pool.