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Conference bulova::decw_jan-89_to_nov-90

Title:DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:STAR::VATNE
Created:Mon Oct 30 1989
Last Modified:Mon Dec 31 1990
Last Successful Update:Fri Jun 06 1997
Number of topics:3726
Total number of notes:19516

2670.0. "X and DECwindows over a Real-time network?" by HILLST::KHALL (Wait till they get a load of me!) Thu Apr 26 1990 15:15

Hello Folks,

I have a customer visit in a few days with some Westinghouse technical
executives at which I'm supposed to present on DECwindows.  I'm told these
folks use some kind of real-time networking protocol internally.  Anticipating
the question, I'm trying to get some info on what kind of effort would be
required to get X and DECwindows to run over this protocol.  I'm afraid I have
not been able to get any details on the protocol, so I guess we'll just 
have to talk in general terms.  If anyone can help I'ld really appreciate it.

Kyle Hall

PS:  This is cross post in the ULTRIX, X, and DECwindows Notes Conferences.
T.RTitleUserPersonal
Name		DateLines
2670.1VMS or Ultrix?STAR::VATNEPeter Vatne, VMS DevelopmentThu Apr 26 1990 15:337
If you are talking VMS, then the VMS DECwindows Transport Manual describes
how to write a DECwindows interface to a third-party transport.  I can't
really give an abosolute estimate for how long it would take to write an
interface to an arbitrary protocol.  The example transport in the manual
is TCP/IP, so the closer their protocol is to TCP/IP, the faster they could
code up an interface.  Also, the example is written in BLISS, so they would
also need to know something about BLISS.
2670.2DECWIN::JMSYNGEJames M Synge, VMS DevelopmentThu Apr 26 1990 17:3012
    >so the closer their protocol is to TCP/IP, the faster they could code
    >up an interface.
    
    Let me clarify that.  The example transport interface is layered on UCX
    (Ultrix Connection, our TCP/IP for VMS), which uses the VMS $QIO system
    service as its programming interface.  If Westinghouse is using a
    transport whose programming interface is like that of either DECnet-VAX
    or UCX, then it should not be a lot of work to modify the example
    interface to work with their transport.  Customers have done this in a
    few weeks.
    
    James