for($a=0;$a<=$counter;$a++){ 
if($choice==1){ 
$thr[$a] = threads->create({'exit'=> 'thread_only'},sub {&ext1::submit($file)}); 
} 
else 
{ 
$thr[$a] = threads->create({'exit'=> 'thread_only'},sub {&ext1::reset($file)}); 
} 
$result[$a]=$thr[$a]->is_running(); 
}