serverPID

    OpenVMS usage:process_ID
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Address of a longword containing the extended process
    identification (PID) of the server process to which $PERSONA_
    DELEGATE grants the current persona.

 persona

    OpenVMS usage:persona
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Address of a longword containing the identification that the
    $PERSONA_RESERVE service reserved in the server's process for
    this client's persona.

 input

    OpenVMS usage:persona
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Address of a longword containing the persona identification that
    describes which persona is delegated to the server. If the input
    argument is zero (0) or null, or if the input value is zero (0),
    the current persona is delegated. If the input value is -1, then
    the natural persona of the process is delegated.