Re: supdup protocol and local editing


kent@decwrl.dec.com
Tue, 13 Oct 87 14:09:17 -0700


Ah. I was off-base -- the work was done at Rutgers, not Arizona. The
full reference is DCS-TR-110, "Software Design Issues in the Architecture and
Implementation of Distributed Text Editors", Robert N. Goldberg, Dept.
of Computer Science, Hill Center for the Mathematical Sciences, Busch
Campus, Rutgers University, New Brunswick, NJ 08903.

I don't have a copy, so I can't tell you more, but I'll repeat what I
recall of the basic premise: the display/user interface portion ran on
a PC and accessed the file through a line editor interface, across a
1200 baud line. The PC viewed the whole file in a manner reminiscent of
virtual memory. The author developed a concept he called "optimal
pre-fetch", based on keystroke analysis of various editors, to allow
the PC half to minimize the time the user spent waiting for lines to be
fetched across the link.

Seems like a good place to start looking, for someone looking to
implement this sort of system. I believe that a simple editor makes a
better interface for this sort of work than a full-blown remote file
system, but it means that youre implementing a fairly special-purpose
interface. In this day of faster communication, it may no longer be
worth the effort.

chris



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