yii\mutex\Mutex::acquireLock PHP Method

This method should be extended by a concrete Mutex implementations. Acquires lock by name.

abstract protected acquireLock ( string $name, integer $timeout ) : boolean
$name	string	of the lock to be acquired.
$timeout	integer	time to wait for the lock to be released.
return	boolean	acquiring result.

    protected abstract function acquireLock($name, $timeout = 0);

Mutex