Firewall/FirewallHandler.php
public function onKernelTerminate(PostResponseEvent $event)
	{
		if (!$this->incremented) {
			return;
		}
		
		$this->incremented = false;
		$this->memcache->decrement($this->key);
	}
public function onKernelTerminate(PostResponseEvent $event)
	{
		if (!$this->incremented) {
			return;
		}
		
		$this->incremented = false;
		$this->memcache->decrement($this->key);
	}
public function onKernelTerminate ( PostResponseEvent $ event ) { if ( ! $ this -> incremented ) { return ; } $ this -> incremented = false ; $ this -> memcache -> decrement ( $ this -> key ) ; }
If the current request has ended, decrement concurrency counter

@param \Symfony\Component\HttpKernel\Event\PostResponseEvent $event Event
If the current request has ended decrement concurrency counter