semaphore-id

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

 semaphore-name

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