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

[Dave Froble]

On 11/10/2020 1:33 PM, Simon Clubley wrote:
> On 2020-11-10, Stephen Hoffman <seaohveh at hoffmanlabs.invalid> wrote:
>> On 2020-11-10 13:25:30 +0000, Simon Clubley said:
>>
>>> On 2020-11-09, Dave Froble <davef 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 ?
>>
>> C has access to RRL, too.
>> But RRL doesn't help with a locked file.
>> RRL is applicable when a file is already open and already accessed, and
>> a record lock is to be overridden.
>>
>
> I thought David was talking about some option to get access to the
> file contents while the file is being created, especially given that
> he came from RSTS/E, so I assume he remembers what mode 4096 did on RSTS/E.
>
> Thanks for explaining.
>
> Simon.
>

RMS definitely has provision for "open regardless" and "read 
regardless".  Whether or not they are used is another matter.  The 
capability exists.

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David Froble                       Tel: 724-529-0450
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