Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!valid!feynman!kim
From: kim@feynman.valid.com (Kim Helliwell)
Newsgroups: comp.sys.mac.programmer
Subject: System 7.0, VM, & apps questions
Summary: What does VM aware mean?
Keywords: System 7.0 VM ThinkC MacDraw
Message-ID: <445@valid.valid.com>
Date: 15 May 91 15:42:29 GMT
Sender: news@valid.com
Lines: 39


First, the general question:
From a programming point of view, what does a `VM aware' application do
that a `normal' (at least, a pre-7.0 normal) application doesn't do?

Now, some specific questions:
In particular, I'm interested in what happens with some specific apps:
MacDraw and Think C.  The 7.0 compatibility checker says that MacDraw and
Think C won't work with VM, and recommends that VM be turned off when using
those applications.  But a call to Claris produces the following statement
from a tech support person:  MacDraw will work fine with VM, but use at
your own risk, since the SQA group ran into a (possibly obscure) problem with
it.  That's why it is flagged "don't use with VM."

Now, what about Think C?  Does it really run with VM, but might cause problems?
Or does it die horribly and with certainty?  I haven't been able to try it
yet, since I still have 4.0.1 and need to get 4.0.5 before I can run it at
all.

I did briefly bring up MacDraw with VM on, and saw no overt problems.  But
I didn't stress test it by bringing up all the rest of my applications at the
same time :-).

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Disclaimer: Last time I posted a question, our newsreader posted multiple
copies of my post.  I've been assured that there is no current problem with
the newsreader or with posting.  But, in case the same thing happens again,
I apologize in advance for wasting bandwidth.  I would like to know if it
happens, however, so I can provide evidence to our sysadmin that there IS
in fact a problem.

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"Never let work interfere with your reasons for working."

Kim Helliwell