Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!batcomputer!cornell!rochester!kodak!uupsi!lupine!jcb
From: jcb@NCD.COM (Jim Becker)
Newsgroups: comp.windows.x
Subject: Re: Help Requested with Xview's TTY Subwindows
Message-ID: <jcb.674862630@lupine>
Date: 21 May 91 21:50:30 GMT
References: <76368@brunix.UUCP>
Lines: 31

demillo@porter.geo.brown.edu (Rob DeMillo) writes:

    I am in the middle of authoring and X Application that I
    had intended to use multiple TTY Subwindows on, but I have
    ran into difficulty:

    When I open up a single TTY subwindow, my program behaves
    normally. With more then one TTY window open, Xview seems
    to confuse stdin and stdout. (output intended for one window
    winds up in another, etc etc etc.) I have checked my code
    about, oh, a billion times, and I don't believe the problem is
    with me. I know that SunView had a restriction on the number of
    TTY subwindows to 1, because it couldn't keep track of
    all of the stdio. Is the same limitation imposed on XView?

     - Rob DeMillo


the XView ttysw and textsw code was not designed to be reentrant,  and
you  will  have  mysterious problems when trying to have more than one
ttysw or textsw active at one time.

(this is not heresay, i was responsible for the code at Sun.)

-Jim Becker	(eX-XView Group Member)

-- 

--
 -Jim Becker / jcb@ncd.com   /   Network Computing Devices, Inc. (NCD)