CControllerAgent::_Lock

static function _Lock($uniq)
{
	global $DB;

	$db_lock = $DB->Query("SELECT GET_LOCK('".$DB->ForSQL($uniq)."', 0) as L", false, "File: ".__FILE__."
Line: ".__LINE__);
	$ar_lock = $db_lock->Fetch();

	if ($ar_lock["L"] == "1")
		return true;
	else
		return false;
}