concrete/src/File/Image/Thumbnail/AtomicThumbnailStream.php
private function getLockID()
    {
        if ($this->lockID) {
            return $this->lockID;
        }

        $id = uniqid('thumbnail_thread_', true);

        $this->lockID = $id;
        return $id;
    }
private function getLockID()
    {
        if ($this->lockID) {
            return $this->lockID;
        }

        $id = uniqid('thumbnail_thread_', true);

        $this->lockID = $id;
        return $id;
    }
private function getLockID ( ) { if ( $ this -> lockID ) { return $ this -> lockID ; } $ id = uniqid ( 'thumbnail_thread_' , true ) ; $ this -> lockID = $ id ; return $ id ; }
Get and memoize the current lock ID
@return string
Get and memoize the current lock ID