Kraken\Channel\Model\Socket\Socket::recvHeartbeat PHP Method

    private function recvHeartbeat(Connection $conn)
    {
        if ($this->flags['enableHeartbeat'] !== true) {
            return;
        }
        if ($this->connectionPool->setConnection($conn)) {
            $this->emit('connect', [$conn->id]);
        }
        if ($this->type === Channel::BINDER) {
            $this->heartbeat($conn->id);
        }
        foreach ($messages = $this->onlineBuffer->pull($conn->id) as $message) {
            $this->unicast($message[0], $message[1]);
        }
    }