Do you want to use a PHP library that requires Symfony's Lock Component in your Drupal site? This library maps Drupal's LockBackendInterface to a Symfony StoreInterface.
Require this library in your Drupal module:
$ composer require lullabot/drupal-symfony-lock
Inject lock service from the Drupal container, and use it when constructing this class:
<?php
$backend = \Drupal::lock();
$store = new \Lullabot\DrupalSymfonyLock\DrupalStore($backend);
$factory = new \Symfony\Component\Lock\Factory($store);
$lock = $factory->createLock('lock-identifier', 10);
// Blocking means this will throw an exception on failure.
$lock->acquire(true);