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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\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);
- }
- }
- }
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