[Info-vax] Still no DIR/SORT_BY_TIME

Simon Clubley clubley at remove_me.eisner.decus.org-Earth.UFP
Mon Aug 17 10:40:38 EDT 2015


On 2015-08-17, Johnny Billquist <bqt at softjar.se> wrote:
> On 2015-08-17 14:50, Simon Clubley wrote:
>>
>> With RSTS/E, when opening a file, you could specify various options
>> using a mode field which was a bitfield encoded integer. Opening a file
>> with mode 4096 allowed you to open and read a file when you normally be
>> blocked due to an incompatible open mode from another currently running
>> program.
>
> Hmm. Essentially bypassing file locking?
>

Basically, yes.

I found it useful enough that after a couple of decades since I last
used RSTS/E in production use, I still remember which value to use
in the mode field. :-)

What I can't remember however is if mode 4096 was available to
everyone or only privileged users/programs.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world



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