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From: collinge@uvicctr.UUCP (Doug Collinge)
Newsgroups: net.lang.forth
Subject: Re: Multi-user and files
Message-ID: <124@uvicctr.UUCP>
Date: Wed, 15-May-85 14:19:22 EDT
Article-I.D.: uvicctr.124
Posted: Wed May 15 14:19:22 1985
Date-Received: Fri, 17-May-85 05:03:45 EDT
References: <161@vger.UUCP> <614@cadovax.UUCP>
Organization: University of Victoria, Victoria B.C. Canada
Lines: 23

How about this:

You have N buffers.  You have tasks A and B, among others.
When you switch from task A to task B you save the buffer
mapping table along with the other stuff.  Then when you
switch back to A you check to make sure that the buffers
have the same blocks in them.  If they don't you write 
out the changed ones and read back in the ones that A is
expecting. 

This is horrible if both A and B are making heavy use of
the buffers but if A is using them heavily and B not very
much then it isn't too bad.  And it is compatible.

Anyone see problems?
-- 
		Doug Collinge
		School of Music, University of Victoria,
		PO Box 1700, Victoria, B.C.,
		Canada,  V8W 2Y2  
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