[Info-vax] RMS and SSIO (again)

[Arne Vajhøj]

On 1/9/2022 6:49 PM, Greg Tinkler wrote:
> Arne Yup it 'pretends' that the file is UDF, but does not change the
> file itself.  This allow the access to change on the fly to UDF and
> back, which then allows all the other RMS functions to work as
> expected.
> 
> Does it work, yes it does, been there, got the tee-shirt.  Re the
> code, since I am talking about replacing CRTL components it should be
> done within the auspices of CRTL, so FD/FCB etc all correctly
> managed.  If VSI want to send me all the CRTL relating the files then
> maybe... But I don't think that is practical, do you?

There is no need for all of that. It can be done other ways.
Most simple would be an acc callback in open to change it
and a revert routine using saved info.

But I am amazed that someone believe that such 20 lines would
solve a problem VMS engineering has spent a decade or more
on.

Arne