[TUHS] dmr streams & networking [was: Re: If not Linux, then what?]

Rudi Blom rudi.j.blom at gmail.com
Sun Sep 1 12:16:39 AEST 2019

I don't remember from where I got the scheme, so it might be general,
DigitalUnix, or HP-UX related. Checking the "HP 9000 networking XTI
programmer's guide" from 1995 there's no diagram.

The application which was initially developed on a SystemV derived
UNIX the Computer division of Philips Electronics had bought, used
TLI. Taken over by DEC we moved to SCO UNIX still using TLI, moving to
XLI on Alpha/Digital Unix.

The nice thing of TLI/XLI is the poll(). A multi-client server can
check a list of file descriptors AND indicate a timeout value for the
poll(). Like in
   	ret_cd = poll(tep->CEPlist, tep->CEPnumb, timeout);

BTW putting in a bit of OSI, on SCO UNIX I use a DEC package which
offers a TLI interface to an OSI TP4/IP stack. Even worked using X.25
as WAN. OSI TP4 and NetBIOS originally bought from Retix.

>Date: Sat, 31 Aug 2019 11:41:40 -0400
>From: Clem Cole <clemc at ccc.com>
>To: Rudi Blom <rudi.j.blom at gmail.com>
>Cc: tuhs <tuhs at minnie.tuhs.org>
>Subject: Re: [TUHS] dmr streams & networking [was: Re: If not Linux,then what?]
>        <CAC20D2MJPFoU6r73U9GDaqG+Q7vpH3T7CiDNjgN3D2uyuAJgLQ at mail.gmail.com>
>Content-Type: text/plain; charset="utf-8"
>It's the Mentant implementation that HP originally bought.  At LCC we had
>to hacked on it a bit when we put Transparent Network Computing (TNC) stuff
>in HP-UX  [we had full process migration working BTW -- A real shame that
>never shipped].

>On Sat, Aug 31, 2019 at 5:44 AM Rudi Blom <rudi.j.blom at gmail.com> wrote:

>> Whenever I hear UNIX, networking and streams I have to think about this
>> scheme.
>> Still using this, even on HP-UX 11.31 on Itanium rx-servers
>> Cheers,
>> uncle rubl

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