private function handleReceive($data)
    {
        if (!$this->isConnected && !$this->isConnecting) {
            return;
        }

        $flowCount = count($this->receivingFlows);

        $packets = $this->parser->push($data);
        foreach ($packets as $packet) {
            $this->handlePacket($packet);
        }

        if ($flowCount > count($this->receivingFlows)) {
            $this->receivingFlows = array_values($this->receivingFlows);
        }

        $this->handleSend();
    }