[Info-vax] Multiple File Readers/Writers

[hb]

On Nov 25, 10:18 am, Matt <matt-nos... at 9track.net> wrote:
> Yes, it's like it's reading from some buffer somewhere. I've passed the
> GBC option so it should be using a single global buffer shared between
> the two processes.
>
> The Guide to OpenVMS File Applications manual
> (http://h71000.www7.hp.com/doc/731final/4506/4506pro.html) says that
> sharing is supported for all file organisations although I think with
> multiple writers on stream files you have to provide your own locking
> mechanism. It also hints that you may need to maintain the EOF pointer
> manually.
>
> Thanks for the bug fixes - good old copy/paste. The C-RTL manual doesn't
> show a mode parameter for open() when using the 'HP C extension' format.
> I'll have to check the headers to see if this is a typo in the manual or
> if the file protection needs to be passed as one of the RMS parameters.
>
> Matt

There is an old DECUS presentation on this:
http://www.decus.de/slides/sy2000/vortraege_3003/3n02.pdf. Just ask
Google to translate it.