(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)
dbplus_xlockrel — Request exclusive lock on relation
$relation
) : int
Request an exclusive lock on relation preventing
even read access from other clients.
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.