Re: Thoughts in Random Order

["Jason M. Felice" <jasonf@xxxxxxxxxxxxxxxx>]

On Wed, Nov 17, 1999 at 05:57:29PM -0000, wsuetholz@centonline.com wrote:
> Speaking of thoughts...  It's been a while since I examined the
> tn5250 source code in some depth, but, how hard would it be to 
> extend the lib5250 to be a generic lib3270/5250 that could handle 
> (based on terminal type) the differences between 5250 and 3270 
> datastreams.  My code still uses a front end datastream processor
> and one or more back end I/O processors.  This is because I am
> emulating multiple LU's from one control program.  Screen Scraping.

That would be cool.  I haven't got the hardware to test 3270 emulation, but if
you care to donate a small 390, have it shipped to:

Jason M. Felice
3905 West 32nd Street
Cleveland, Oh 44109

Hahahee (couldn't resist).

(Yes, I know the AS/400 can do 3270, but that's not as funny.)

In any case, with the way I'm reorganizing it, the Stream 'class' just handles
chopping the stream up into blocks (separated by End-Of-Record markers), the
Display, DBuffer, Field, and Table 'classes' are very generic and don't care
about the stream format, and the Session 'class' is the only thing that
parses the stream and composes replies (well, a little of the reply composition
is still in the stream, but not a big deal).

Doable, and maybe useful (less duplication of effort for things like Gnome
support).

> 
> The basic functions that the terminals use are very similar, it's 
> just that they use different opcodes to accomplish those functions.
> 

I've often wondered what the reasoning behind this was, did they just design
5250 to handle more processing on the client end, or what?

> Maybe Release 0.91 ?
> 

-Jay 'Eraserhead' Felice
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