[Info-vax] CRTL and RMS vs SSIO

[David Jones]

On Saturday, October 9, 2021 at 6:19:44 AM UTC-4, tink... at gmail.com wrote 
> So the other choice, 3), fix CRTL to use RMS correctly, and the problems will go away. Engineering effort would not be great. I don't have access to the code base, but assuming that stdio uses unixio then it is fixing 5 routines. This would also allow all the other ports to work with minimal changes in the file access area. If you what to know more contact me directly. 
> 
> Longer term the SSIO may be useful to RMS, which is where it belongs. 

I don't think the CRTL can do it with just the capabilities RMS gives it currently(or they would have fixed it already). Maintaining coherence of where end-of-file is for multiple writers is a difficult problem.

The crtl does not layer stdio file access on top of unixio primitives.