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

Stephen Hoffman seaohveh at hoffmanlabs.invalid
Tue Nov 10 12:19:05 EST 2020


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.



-- 
Pure Personal Opinion | HoffmanLabs LLC 




More information about the Info-vax mailing list