How to use Async and dataPacket together?

Guys, i wanna load images in maps Asynchronously
but core only dumped

PHP:

class AsyncUpdate extends AsyncTask{
    private $player;
    private $mapId;
    private $color;
    private $pk;
    
    function __construct(Player $player, int $mapId, $color){
        $this->player = $player;
        $this->mapId = $mapId;
        $this->color = $color;
    }

    function onRun( ){
        $this->pk = new ClientboundMapItemDataPacket();
        $this->pk->mapId = $this->mapId;
        $this->pk->scale = 0;
        $this->pk->width = 128;
        $this->pk->height = 128;
        $this->pk->colors = $this->color;
    }
    
    function onCompletion(Server $server){
        //$this->player->dataPacket($this->pk); - Segmentation fault (core dumped)
        //$server->broadcastPacket([$this->player],$this->pk); - Segmentation fault (core dumped)
        unset($this->pk);
        unset($this->player);
        unset($this->mapId);
        unset($this->color);
    }
}

//func in main
 public function sendMap(Player $player, int $mapId, $color) {
        $this->getServer()->getScheduler()->scheduleAsyncTask(new AsyncUpdate($player, $mapId, $color));
    }



 

PHP:

/**
 * @param $player string
 */
function __construct(string $player, int $mapId, $color){
        $this->player = $player;
        $this->mapId = $mapId;
        $this->color = $color;
}

public function onRun( ) {
        $pk = new ClientboundMapItemDataPacket();
        $pk->mapId = $this->mapId;
        $pk->scale = 0;
        $pk->width = 128;
        $pk->height = 128;
        $pk->colors = $this->color;
        $this->setResult($pk);
}

public function onCompletion(Server $server) {
       if(($player = $server->getPlayer($this->player))) {
              $player->dataPacket($this->getResult());
       }
}


Don't pass objects through threads. Except ones that can be serialized

 

Code:

Error: pthreads detected an attempt to connect to an object which has already been destroyed
File: /src/pocketmine/scheduler/AsyncTask
Line: 85
Type: notice

Code:
[76]
[77]     public function isCrashed(){
[78]         return $this->crashed;
[79]     }
[80]
[81]     /**
[82]      * @return mixed
[83]      */
[84]     public function getResult(){
[85]         return $this->serialized ? unserialize($this->result) : $this->result;
[86]     }

 

Oh yeah, didn't notice. By doing Player::dataPacket($this->getResult()) the packet (object) is passed through threads. Easiest way to resolve this is to, break packet data into primitives and build the packet back together in the main thread.

 

Tell me more about this, please.

 

Pass all object properties individually to main thread

PHP:

$server->getPluginManager()->getPlugin("MyPlugin")->constructAndSendMapPacket(
    $pk->scale, $pk->width, $pk->height, $pk->colors, $pk->mapId, $this->playerName
);