class MTDaemon{
    var $threads = 4;
    var $idlesleeptime = 3;

    var $run=true;
    var $slot=0;
    function  __construct($threads = null, $idlesleeptime = null){
        if ($threads) {
            $this->threads=$threads;
        }
        if ($idlesleeptime) {
            $this->idlesleeptime=$idlesleeptime;
        }
    }

    function handle(){
        while($this->run){

            if ($this->slot>=$this->threads) {
                pcntl_wait(&$status);
                $this->slot--;
            }
            $next=$this->getNext($this->slot);
            if ($next==null) {
                continue;
            }
            if ($this->run==false) {
                break;
            }
            if(pcntl_fork()==0){
                $this->run($next,$this->slot);
                exit;
            }
            $this->slot++;
        }
    }

    function run($next,$slot){

    }
    function getNext($slot){

    }

}