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Filename :
LockableTrait.php
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<?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 PerformanceBooster\Symfony\Component\Console\Command; use PerformanceBooster\Symfony\Component\Console\Exception\LogicException; use PerformanceBooster\Symfony\Component\Lock\LockFactory; use PerformanceBooster\Symfony\Component\Lock\LockInterface; use PerformanceBooster\Symfony\Component\Lock\Store\FlockStore; use PerformanceBooster\Symfony\Component\Lock\Store\SemaphoreStore; /** * Basic lock feature for commands. * * @author Geoffrey Brier <geoffrey.brier@gmail.com> */ trait LockableTrait { private ?LockInterface $lock = null; /** * Locks a command. */ private function lock(?string $name = null, bool $blocking = \false) : bool { if (!\class_exists(SemaphoreStore::class)) { throw new LogicException('To enable the locking feature you must install the symfony/lock component. Try running "composer require symfony/lock".'); } if (null !== $this->lock) { throw new LogicException('A lock is already in place.'); } if (SemaphoreStore::isSupported()) { $store = new SemaphoreStore(); } else { $store = new FlockStore(); } $this->lock = (new LockFactory($store))->createLock($name ?: $this->getName()); if (!$this->lock->acquire($blocking)) { $this->lock = null; return \false; } return \true; } /** * Releases the command lock if there is one. */ private function release() : void { if ($this->lock) { $this->lock->release(); $this->lock = null; } } }