Aerys\Server::onReadable PHP Method

    private function onReadable(string $watcherId, $socket, $client)
    {
        $data = @\fread($socket, $this->options->ioGranularity);
        if ($data == "") {
            if (!\is_resource($socket) || @\feof($socket)) {
                if ($client->isDead == Client::CLOSED_WR || $client->pendingResponses == 0) {
                    $this->close($client);
                } else {
                    $client->isDead = Client::CLOSED_RD;
                    \Amp\cancel($watcherId);
                    $client->readWatcher = null;
                    if ($client->bodyPromisors) {
                        $ex = new ClientException();
                        foreach ($client->bodyPromisors as $promisor) {
                            $promisor->fail($ex);
                        }
                        $client->bodyPromisors = [];
                    }
                }
            }
            return;
        }
        $this->renewKeepAliveTimeout($client);
        $client->requestParser->send($data);
    }