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Date:      Thu, 15 Feb 2001 09:22:01 -0500 (EST)
From:      Daniel Eischen <eischen@vigrid.com>
To:        Bruce Evans <bde@zeta.org.au>
Cc:        Warner Losh <imp@harmony.village.org>, arch@FreeBSD.ORG
Subject:   Re: The whole libc thing.
Message-ID:  <Pine.SUN.3.91.1010215091945.2023B-100000@pcnet1.pcnet.com>
In-Reply-To: <Pine.BSF.4.21.0102152135350.9729-100000@besplex.bde.org>

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On Thu, 15 Feb 2001, Bruce Evans wrote:
> On Thu, 15 Feb 2001, Warner Losh wrote:
> 
> > Green's solution of stealing a pointer and using that to "grow" FILE.
> > This would allow old binaris to keep working at the cost of binary
> > compatibility.  There's a few extra indirections in this case, you'll
> > likely not be able to measure that performance loss.  But it will work
> > with the case above and most of the others we threw at it.
> 
> Pointers to FILEs can be converted to pointers extensions of FILEs using
> a hash lookup.  This takes slightly more than a few indirections, but
> it doesn't cost binary compatibilty.

And introduces another place where locks would be needed.

-- 
Dan Eischen


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