[Info-vax] DCL "READ/TIME_OUT=n" from terminal; timer resets if message written to screen

Dave Froble davef at tsoft-inc.com
Mon May 24 10:05:29 EDT 2021


On 5/24/2021 8:45 AM, Simon Clubley wrote:
> On 2021-05-22, gah4 <gah4 at u.washington.edu> wrote:
>>
>> Seems to make some sense to me.
>>
>> If you are supposed to type something, and get interrupted, you should get
>> extra time.  Especially if you have to read and process the message that
>> came out.
>>
>
> Why ?
>
> You are just typing what you have already decided to type.
>
> To implement it in the way VMS does just leads to the problems the
> OP is currently experiencing.
>
> Simon.
>

There is the speculation that the timer AST was queued to allow time for 
user entry.  That might not always be the case.  Likely on a read from 
terminal in DCL.

My "normal" usage of timer ASTs is that I want to allow some time for 
something to happen, and if it doesn't, move on.  No speculation on 
anything, just stop waiting and move on.

-- 
David Froble                       Tel: 724-529-0450
Dave Froble Enterprises, Inc.      E-Mail: davef at tsoft-inc.com
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