raklib\server\RakLibServer::readMainToThreadPacket PHP Method

    public function readMainToThreadPacket()
    {
        return $this->internalQueue->shift();
    }

 public function receiveStream()
 {
     if (\strlen($packet = $this->server->readMainToThreadPacket()) > 0) {
         $id = \ord($packet[0]);
         $offset = 1;
         if ($id === RakLib::PACKET_ENCAPSULATED) {
             $len = \ord($packet[$offset++]);
             $identifier = \substr($packet, $offset, $len);
             $offset += $len;
             if (isset($this->sessions[$identifier])) {
                 $flags = \ord($packet[$offset++]);
                 $buffer = \substr($packet, $offset);
                 $this->sessions[$identifier]->addEncapsulatedToQueue(EncapsulatedPacket::fromBinary($buffer, \true), $flags);
             } else {
                 $this->streamInvalid($identifier);
             }
         } elseif ($id === RakLib::PACKET_RAW) {
             $len = \ord($packet[$offset++]);
             $address = \substr($packet, $offset, $len);
             $offset += $len;
             $port = \unpack("n", \substr($packet, $offset, 2))[1];
             $offset += 2;
             $payload = \substr($packet, $offset);
             $this->socket->writePacket($payload, $address, $port);
         } elseif ($id === RakLib::PACKET_CLOSE_SESSION) {
             $len = \ord($packet[$offset++]);
             $identifier = \substr($packet, $offset, $len);
             if (isset($this->sessions[$identifier])) {
                 $this->removeSession($this->sessions[$identifier]);
             } else {
                 $this->streamInvalid($identifier);
             }
         } elseif ($id === RakLib::PACKET_INVALID_SESSION) {
             $len = \ord($packet[$offset++]);
             $identifier = \substr($packet, $offset, $len);
             if (isset($this->sessions[$identifier])) {
                 $this->removeSession($this->sessions[$identifier]);
             }
         } elseif ($id === RakLib::PACKET_SET_OPTION) {
             $len = \ord($packet[$offset++]);
             $name = \substr($packet, $offset, $len);
             $offset += $len;
             $value = \substr($packet, $offset);
             switch ($name) {
                 case "name":
                     $this->name = $value;
                     break;
                 case "portChecking":
                     $this->portChecking = (bool) $value;
                     break;
                 case "packetLimit":
                     $this->packetLimit = (int) $value;
                     break;
             }
         } elseif ($id === RakLib::PACKET_BLOCK_ADDRESS) {
             $len = \ord($packet[$offset++]);
             $address = \substr($packet, $offset, $len);
             $offset += $len;
             $timeout = \PHP_INT_SIZE === 8 ? \unpack("N", \substr($packet, $offset, 4))[1] << 32 >> 32 : \unpack("N", \substr($packet, $offset, 4))[1];
             $this->blockAddress($address, $timeout);
         } elseif ($id === RakLib::PACKET_SHUTDOWN) {
             foreach ($this->sessions as $session) {
                 $this->removeSession($session);
             }
             $this->socket->close();
             $this->shutdown = \true;
         } elseif ($id === RakLib::PACKET_EMERGENCY_SHUTDOWN) {
             $this->shutdown = \true;
         } else {
             return \false;
         }
         return \true;
     }
     return \false;
 }