[Info-vax] [OpenVMS Alpha V8.3] SET TERM hang

[Michael Moroney]

"Richard Maher" <maher_rj at hotspamnotmail.com> writes:

>Hi Michael,

>"Michael Moroney" <moroney at world.std.spaamtrap.com> wrote in message
>news:hejjus$rkp$1 at pcls4.std.com...

>> QIO stands for Queued Input/Output.  Many I/Os have to wait until other
>> ones complete.  I believe that any SETMODE (SET TERM) on a terminal (any
>> terminal, not jist OPA0:) has to wait for any READs to complete.  There is
>> a READ at the DCL prompt where DCL is waiting for a commend.  I bet the
>> SET TERM request completes immediately if someone walks up to OPA0: and
>> presses RETURN.

>If that's the case would a $SET TERM followed by broadcast to that terminal
>(which should interrupt the read and give it ss$_opincompl) achieve the
>desired results? Perhaps io$_setmode has a breakthru modifier for that
>matter?

I can't tell you for sure.  I do know the breakthru modifier (used by
REPLY writes, I'm sure) is kind of funky.  Who knows, perhaps it does
work on setmodes, maybe someone can try it!  I'm quite sure it's not
documented as applying to setmodes...