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✏️ Edit File: /home/rsukartini.com/rs/vendor/react/dns/src/Query/RetryExecutor.php

<?php

namespace React\Dns\Query;

use React\Promise\Deferred;
use React\Promise\PromiseInterface;

final class RetryExecutor implements ExecutorInterface
{
    private $executor;
    private $retries;

public function __construct(ExecutorInterface $executor, $retries = 2)
    {
        $this->executor = $executor;
        $this->retries = $retries;
    }

public function query(Query $query)
    {
        return $this->tryQuery($query, $this->retries);
    }

public function tryQuery(Query $query, $retries)
    {
        $deferred = new Deferred(function () use (&$promise) {
            if ($promise instanceof PromiseInterface && \method_exists($promise, 'cancel')) {
                $promise->cancel();
            }
        });

$success = function ($value) use ($deferred, &$errorback) {
            $errorback = null;
            $deferred->resolve($value);
        };

$executor = $this->executor;
        $errorback = function ($e) use ($deferred, &$promise, $query, $success, &$errorback, &$retries, $executor) {
            if (!$e instanceof TimeoutException) {
                $errorback = null;
                $deferred->reject($e);
            } elseif ($retries <= 0) {
                $errorback = null;
                $deferred->reject($e = new \RuntimeException(
                    'DNS query for ' . $query->describe() . ' failed: too many retries',
                    0,
                    $e
                ));

// avoid garbage references by replacing all closures in call stack.
                // what a lovely piece of code!
                $r = new \ReflectionProperty('Exception', 'trace');
                $r->setAccessible(true);
                $trace = $r->getValue($e);

// Exception trace arguments are not available on some PHP 7.4 installs
                // @codeCoverageIgnoreStart
                foreach ($trace as $ti => $one) {
                    if (isset($one['args'])) {
                        foreach ($one['args'] as $ai => $arg) {
                            if ($arg instanceof \Closure) {
                                $trace[$ti]['args'][$ai] = 'Object(' . \get_class($arg) . ')';
                            }
                        }
                    }
                }
                // @codeCoverageIgnoreEnd
                $r->setValue($e, $trace);
            } else {
                --$retries;
                $promise = $executor->query($query)->then(
                    $success,
                    $errorback
                );
            }
        };

$promise = $this->executor->query($query)->then(
            $success,
            $errorback
        );

return $deferred->promise();
    }
}

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