X-Authentication-Warning: delorie.com: mailnull set sender to djgpp-workers-bounces using -f
Date: Fri, 01 Mar 2002 10:09:01 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: djgpp-workers AT delorie DOT com
Message-Id: <2110-Fri01Mar2002100901+0200-eliz@is.elta.co.il>
X-Mailer: emacs 21.2.50 (via feedmail 8 I) and Blat ver 1.8.9
In-reply-to: <3C7E6500.AFE5FEF7@yahoo.com> (message from CBFalconer on Thu, 28
	Feb 2002 12:12:32 -0500)
Subject: Re: Malloc/free DJGPP code
References: <10202281548 DOT AA27673 AT clio DOT rice DOT edu> <3C7E6500 DOT AFE5FEF7 AT yahoo DOT com>
Reply-To: djgpp-workers AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp-workers AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk

> Date: Thu, 28 Feb 2002 12:12:32 -0500
> From: CBFalconer <cbfalconer AT yahoo DOT com>
> 
> I am working on the realloc mechanism now, and it looks as if it
> is going to be able to avoid most of the copying in the most
> common user sequences, such as while more input double (or
> otherwise extend) the buffer size.

I assume you did look at the modified realloc in the CVS sources.  I
think it also avoids copying in many cases, more then the version
shipped with djdev203.zip.

> When realloc is done I will be able to run some comparisons
> against the old version with the software that exposed the free
> problem in the first place.

It would be interesting to add to that comparison the original code of
free with a change suggested by Charles: stop trying to merge if no
good place to merge was found in N attempts, for some value of N.
That is, break out of the loop in `merge' after a certain number of
attempts.

> What do you think about the debuggery system linkage, in my 4:50
> am today message?

Did you look at the malldbg.c module in the CVS version of the
library?  Perhaps you could make your facilities compatible with the
functionality offered by that module.