handle-address

    OpenVMS usage:address
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference

    Block of storage containing the value returned by a previous call
    to LIB$INIT_TIMER. The handle-address argument is the address of
    an unsigned longword integer containing that value.

    o  If specified, the pointer must be the same value returned by a
       previous call to LIB$INIT_TIMER.

    o  If omitted, LIB$SHOW_TIMER will use a block of memory
       allocated by LIB$INIT_TIMER.

    o  If handle-address is omitted and LIB$INIT_TIMER has not
       been called previously, the error LIB$_INVARG is returned.
       LIB$INIT_TIMER must be called prior to a call to LIB$SHOW_
       TIMER. Note that the handle-address argument is the same as
       the context argument used in the LIB$INIT_TIMER call.

    LIB$SHOW_TIMER assumes that LIB$INIT_TIMER has been previously
    called, and that the results of that call are stored either in a
    block pointed to by handle-address, or in the memory allocated by
    LIB$INIT_TIMER.

 code

    OpenVMS usage:longword_signed
    type:         longword (signed)
    access:       read only
    mechanism:    by reference

    Integer specifying the statistic you want; if it is omitted or
    zero, all five statistics are returned on one line. The code
    argument is the address of a signed longword integer containing
    the statistic code.

    The following values are allowed for the code argument:

    Value Description

    1     Elapsed time
    2     CPU time
    3     Buffered I/O
    4     Direct I/O
    5     Page faults

 user-action-procedure

    OpenVMS usage:procedure
    type:         procedure value
    access:       function call (before return)
    mechanism:    by value

    User-supplied action routine called by LIB$SHOW_TIMER. The
    default action of LIB$SHOW_TIMER is to write the results to
    SYS$OUTPUT. An action routine is useful if you want to write the
    results to a file or, in general, anywhere other than SYS$OUTPUT.

    The action routine returns either a success or failure condition
    value; this status is returned to the calling program as the
    value of LIB$SHOW_TIMER.

 user-argument-value

    OpenVMS usage:user-arg
    type:         longword (unsigned) (on VAX systems)
                              quadword (unsigned) (on Alpha and I64
                  systems)
    access:       read only
    mechanism:    by value

    A value to be passed to the action routine without
    interpretation. If omitted, LIB$SHOW_TIMER passes a zero by value
    to the user routine.