function _unlock()
    {
        $ret = $this->_lock(LOCK_UN);
        if (is_resource($this->_lockFp)) {
            fclose($this->_lockFp);
        }
        $this->_lockFp = null;
        return $ret;
    }
function _unlock()
    {
        $ret = $this->_lock(LOCK_UN);
        if (is_resource($this->_lockFp)) {
            fclose($this->_lockFp);
        }
        $this->_lockFp = null;
        return $ret;
    }
function _unlock ( ) { $ ret = $ this -> _lock ( LOCK_UN ) ; if ( is_resource ( $ this -> _lockFp ) ) { fclose ( $ this -> _lockFp ) ; } $ this -> _lockFp = null ; return $ ret ; }
Release usage of dependency DB
@return true|PEAR_Error
@access private
Release usage of dependency DB