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From: resnick@cogsci.uiuc.edu (Pete Resnick)
Newsgroups: comp.sys.mac.programmer
Subject: Re: init and system heap question
Message-ID: <1991Feb14.201510.26105@ux1.cso.uiuc.edu>
Date: 14 Feb 91 20:15:10 GMT
References: <1991Feb14.140439.4452@jarvis.csri.toronto.edu>
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tracyn@dgp.toronto.edu (Tracy Narine) writes:

>I have written an init that installs a device driver.  A problem that
>sometimes occurs at startup time is the device driver will not execute since
>there is insufficient memory in the system heap. How can I expand the
>system heap to that I will have enough memory for my driver to work?  

>I have noticed in technotes that there is a size resource for setting
>program sizes.  Will this also work for a init starting a driver?

Inside Mac V, p. 352 says that for an INIT, create a 'sysz' resource,
which should contain the number of bytes needed in the system heap
as it's first long word. You get 16K by default. This includes the
heap space for the INIT code and resources as well as the driver and
its resources.

pr
--
Pete Resnick             (...so what is a mojo, and why would one be rising?)
Graduate assistant - Philosophy Department, Gregory Hall, UIUC
System manager - Cognitive Science Group, Beckman Institute, UIUC
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