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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 Symfony\Component\HttpClient\Internal; /** * @author Nicolas Grekas <p@tchwork.com> * * @internal */ final class Canary { private \Closure $canceller; public function __construct(\Closure $canceller) { $this->canceller = $canceller; } public function cancel() { if (isset($this->canceller)) { $canceller = $this->canceller; unset($this->canceller); $canceller(); } } public function __destruct() { $this->cancel(); } }