Mercurial > hg > isophonics-drupal-site
view vendor/symfony/console/Command/LockableTrait.php @ 13:5fb285c0d0e3
Update Drupal core to 8.4.7 via Composer. Security update; I *think* we've
been lucky to get away with this so far, as we don't support self-registration
which seems to be used by the so-called "drupalgeddon 2" attack that 8.4.5
was vulnerable to.
author | Chris Cannam |
---|---|
date | Mon, 23 Apr 2018 09:33:26 +0100 |
parents | 4c8ae668cc8c |
children | 1fec387a4317 |
line wrap: on
line source
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Console\Command; use Symfony\Component\Console\Exception\LogicException; use Symfony\Component\Console\Exception\RuntimeException; use Symfony\Component\Filesystem\LockHandler; /** * Basic lock feature for commands. * * @author Geoffrey Brier <geoffrey.brier@gmail.com> */ trait LockableTrait { private $lockHandler; /** * Locks a command. * * @return bool */ private function lock($name = null, $blocking = false) { if (!class_exists(LockHandler::class)) { throw new RuntimeException('To enable the locking feature you must install the symfony/filesystem component.'); } if (null !== $this->lockHandler) { throw new LogicException('A lock is already in place.'); } $this->lockHandler = new LockHandler($name ?: $this->getName()); if (!$this->lockHandler->lock($blocking)) { $this->lockHandler = null; return false; } return true; } /** * Releases the command lock if there is one. */ private function release() { if ($this->lockHandler) { $this->lockHandler->release(); $this->lockHandler = null; } } }