lock-id

    OpenVMS usage identifier
    type          longword (unsigned)
    access        read only
    mechanism     by reference
    Identifier of the lock. The optional lock-id argument is the
    address of an unsigned longword containing the lock identifier.

 lock-name

    OpenVMS usage char_string
    type          character string
    access        read only
    mechanism     by descriptor
    Name of the lock. The optional lock-name argument is the address
    of a descriptor pointing to a character string containing the
    lock name.