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From:	themouse <usul DOT the DOT mouse AT gmail DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: demand loaded?
Date:	Tue, 17 Mar 2009 13:12:07 -0700 (PDT)
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To:	djgpp AT delorie DOT com
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On Mar 17, 2:25=A0pm, DJ Delorie <d DOT  DOT  DOT  AT delorie DOT com> wrote:
> > but when you create a new object malloc or whatever. would that be
> > considered on demand? Or are you talking about something completely
> > different.?
>
> There are two things to consider here:
>
> 1. when the program is first loaded off disk, it can be loaded all at
> =A0 =A0once or demand loaded.
>
> 2. when you ask the DPMI server for memory, the server can demand page
> =A0 =A0it or not.
>
> I'm not sure, but djgpp might zero out allocated memory (at least, the
> first time) to make sure it's not "dirty" from the OS. =A0If it does
> that, then it won't be demand paged in (although the os might still
> demand page it *out*).
>
> Once memory is paged in, the os can still swap it out if it needs to.
> That's up to the DPMI provider, not djgpp itself.

Are you saying that if I have a collection of objects that I would
HAVE to put a max number to the number that I want?

Say I have a grid of columns and rows.
when I program do I have to say only 10 loaded at a time and write
paging functionality.
Instead of adding one to the list programaticallty?

what about something like this?
http://www.geekpedia.com/tutorial7_Creating-a-collection-class-in-Cplusplus=
.html

Perhaps I have been spoiled by dot net :P or is this a limitation I
need to learn to live with?

~theMouse

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