File Content: SignalRegistry.php <?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\SignalRegistry; final class SignalRegistry { private array $signalHandlers = []; public function __construct() { if (\function_exists('pcntl_async_signals')) { pcntl_async_signals(true); } } public function register(int $signal, callable $signalHandler): void { if (!isset($this->signalHandlers[$signal])) { $previousCallback = pcntl_signal_get_handler($signal); if (\is_callable($previousCallback)) { $this->signalHandlers[$signal][] = $previousCallback; } } $this->signalHandlers[$signal][] = $signalHandler; pcntl_signal($signal, $this->handle(...)); } public static function isSupported(): bool { return \function_exists('pcntl_signal'); } /** * @internal */ public function handle(int $signal): void { $count = \count($this->signalHandlers[$signal]); foreach ($this->signalHandlers[$signal] as $i => $signalHandler) { $hasNext = $i !== $count - 1; $signalHandler($signal, $hasNext); } } /** * @internal */ public function scheduleAlarm(int $seconds): void { pcntl_alarm($seconds); } } Submit