X-Authentication-Warning:	delorie.com: mail set sender to djgpp-bounces using -f
From:	kantsel AT mail DOT ru (Anthony)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How can I monitor the amount of free RAM?
Date:	20 Mar 2004 07:38:50 -0800
Organization:	http://groups.google.com
Lines:	20
Message-ID:	<16f148d8.0403200738.6034bc04@posting.google.com>
References:	<c3f2m1$217i$1 AT alpha2 DOT radio-msu DOT net> <200403191751 DOT i2JHp99L022683 AT envy DOT delorie DOT com>
NNTP-Posting-Host:	62.118.130.30
X-Trace:	posting.google.com 1079797131 21400 127.0.0.1 (20 Mar 2004 15:38:51 GMT)
X-Complaints-To:	groups-abuse AT google DOT com
NNTP-Posting-Date:	Sat, 20 Mar 2004 15:38:51 +0000 (UTC)
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

DJ Delorie <dj AT delorie DOT com> wrote in message news:<200403191751 DOT i2JHp99L022683 AT envy DOT delorie DOT com>...
> > 1. What memory should I monitor (DOS (below 1MB), upper,...)
> 
> Virtual.
> 
> > 2. How can do that?
> 
> You don't want to monitor free memory, you want to monitor *used*
> memory (other things on the computer might use memory too).  Most
> programs can use the sbrk(0) call to ask libc where the top of your
> memory is.  If it doesn't change, you're not asking for more memory.
> 
> The exception is if you choose the "non-moving sbrk" option (nearptr,
> DMA, etc need this) in which case your memory range is discontiguous
> and sbrk() moves all over the place during allocation.  But at least
> you can tell if it changes *at all*.

Thanks, I'll use it. But sill, if I want to know how much memory do I
have left, how can I?
Anthony

- Raw text -