Kraken\Stream\StreamSeeker::seek PHP Метод

    public function seek($offset, $whence = SEEK_SET)
    {
        if (!$this->isSeekable()) {
            throw new WriteException('Cannt seek on this kind of stream.');
        }
        $pointer = fseek($this->resource, $offset, $whence);
        if ($pointer === false) {
            throw new WriteException('Cannot seek on stream.');
        }
        $this->emit('seek', [$this, $pointer]);
    }