CVoxImplantHistory::getLock

static function getLock($callId)
{
	$sqlHelper = Application::getConnection()->getSqlHelper();
	$lockName = $sqlHelper->forSql(self::CALL_LOCK_PREFIX . "_" . $callId);
	$lockRow = Application::getConnection()->query("SELECT GET_LOCK('{$lockName}', 0) as L")->fetch();
	return $lockRow["L"] == "1";
}