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October 2021, Week 4

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Subject:
Re: FREEVT3K - Clipboard paste buffer
From:
Frank McConnell <[log in to unmask]>
Reply To:
Frank McConnell <[log in to unmask]>
Date:
Thu, 28 Oct 2021 14:22:39 -0700
Content-Type:
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On Oct 28, 2021, at 7:58, James B. Byrne wrote:
> 
> 
> On Wed, October 27, 2021 15:05, Frank McConnell wrote:
>> On Oct 27, 2021, at 7:16, James B. Byrne wrote:
>>> Does anyone know what I would need to change in freevt3k to have a larger
> copy and paste (clipboard) buffer when using freevt3k?
>>> 
> . . .
>> 
>> The pending read request length on the HP3000.
>> 
>> You might try freevt3k’s -t flag to enable type-ahead; that may induce it
> to not discard the later pasted “keyboard input” that gets processed
> after the completion of the pending read request.
>> 
>> -Frank McConnell
>> 
> 
> That seems to have worked. Thank you very much.

You're welcome.  I am a classic-3000 kind of guy, which means afterkludged type-ahead for me.

But, I had thought type-ahead was a feature on MPE XL and MPE/iX.

NS VT in the middle could complicate things a bit.  VT is basically a device for proxying MPE terminal I/O requests across the network, which means the VT client (in your case on FreeBSD) knows whether there is a read pending and can make decisions based on that about whether to buffer or discard received keyboard data.  

I used to work on the WIN/TCP for MPE/V TELNET server, which is in a similar role: it gets somewhat-pre-processed terminal I/O requests and makes decisions what to do with received keyboard data.  Being a classic-3000 kind of thing means it doesn’t know about type-ahead.

-Frank McConnell

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