[Info-vax] Volatile, was: Re: yet another sys$qiow question

[Johnny Billquist]

On 2015-08-28 22:36, Bob Koehler wrote:
> In article <55e0994f$0$17002$b1db1813$2411a48f at news.astraweb.com>, JF Mezei <jfmezei.spamnot at vaxination.ca> writes:
>>
>> And when discussing with people who deal in real time, they are all
>> adament that it must all be an event loop, no ASTs allowed. So while I
>> never had to do this, I think it is possible that some types of apps
>> might actually do need to poll the IOSB as part of their real time event
>> loop. (if it is more efficient than checking event flags).
>
>     Did tons of ASTs in real-time.  Hard real-time.  I'd never want an
>     event loop.
>
>     But I know a few who don't understand there systems and do want an
>     event loop.

I don't think you understand what hard real time is then.
I would never dream of running hard real time on anything like VMS, or 
anything Unix-like. Just not going to happen. If I really want hard real 
time, I would start with an operating system designed for that, running 
on hardware designed for that.

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
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