mpyw\Co\Internal\ManualScheduler::addImmediate PHP Метод

    private function addImmediate($ch, Deferred $deferred = null)
    {
        $errno = curl_multi_add_handle($this->mh, $ch);
        if ($errno !== CURLM_OK) {
            // @codeCoverageIgnoreStart
            $msg = curl_multi_strerror($errno) . ": {$ch}";
            $deferred && $deferred->reject(new \RuntimeException($msg));
            return;
            // @codeCoverageIgnoreEnd
        }
        $this->added[(string) $ch] = $ch;
        $deferred && ($this->deferreds[(string) $ch] = $deferred);
    }