Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!claris!UUCP!peirce
From: peirce@outpost.UUCP (Michael Peirce)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Questions about multitasking on the mac
Message-ID: <0B01FFFB.fh2kbp@outpost.UUCP>
Date: 13 May 91 15:31:13 GMT
Reply-To: peirce@outpost.UUCP (Michael Peirce)
Organization: Peirce Software
Lines: 18
X-Mailer: uAccess - Mac Release: 1.1.b3


In article <1991May12.194909.18585@schaefer.math.wisc.edu>, dickie@schaefer.math.wisc.edu (Garth Dickie) writes:
>
> Of course, MPW tools seem to solve it, but I think they use the first model,
> calling out to a timeslicer.  Anybody who's designed an MPW compiler tool care
> to comment?


Yes, that's how it's done.  MPW tools call a library routine called
SpinCursor (there are a couple of variations of this).  This allows
them to yield time and also to indicate to the user that work is being
done.

-- michael

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