[Info-vax] VMS enhancement suggestion: Add a "read regardless" file open option.

[Jim]

On Tuesday, November 10, 2020 at 10:06:29 AM UTC-5, Craig A. Berry wrote:
> On 11/10/20 7:25 AM, Simon Clubley wrote: 
> > On 2020-11-09, Dave Froble <da... at tsoft-inc.com> wrote: 
> 
> >> Seems like VAX Basic has a "read regardless" lock qualifier ... 
> >> 
> > 
> > I wasn't aware of that. Does it allow you to open a sequential file for 
> > reading while the file is also in the process of being created by another 
> > program ? You can clearly do it for batch log files but what about programs 
> > that don't specify that writing mode when creating a sequential file ? 
> > 
> >> Might that be helpful? 
> >> 
> >> And of course RMS would have the capability. 
> >> 
> > 
> > Interesting. One of the issues that was raised when I moved from RSTS/E 
> > to VMS in the early 1990s was that a VMS version of mode 4096 didn't 
> > exist and I wasn't aware it had been added in the meantime.
> Search for "OpenVMS RMS RAB$V_RRL" and see how it works. That's 
> record-level, though, not file-level.

For file level access - search for fib$v_nolock or fib$m_nolock