DispatchPcntlSignalListener example

use Symfony\Component\Serializer\Normalizer\ArrayDenormalizer;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;

$serializer = new Serializer(
    new SerializerComponent\Serializer([new ObjectNormalizer(), new ArrayDenormalizer()], ['json' => new JsonEncoder()])
);

$connection = Connection::fromDsn(getenv('DSN'));
$receiver = new AmqpReceiver($connection, $serializer);
$eventDispatcher = new EventDispatcher();
$eventDispatcher->addSubscriber(new StopWorkerOnSignalsListener());
$eventDispatcher->addSubscriber(new DispatchPcntlSignalListener());

$worker = new Worker(['the_receiver' => $receiver], new class() implements MessageBusInterface {
    public function dispatch($envelope, array $stamps = []): Envelope
    {
        echo 'Get envelope with message: '.$envelope->getMessage()::class."\n";
        echo sprintf("with stamps: %s\n", json_encode(array_keys($envelope->all()), \JSON_PRETTY_PRINT));

        sleep(30);
        echo "Done.\n";

        return $envelope;
    }