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To: "M. Warner Losh" <imp@bsdimp.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 13 Jul 2004 15:15:49 MDT."
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Date: Tue, 13 Jul 2004 23:22:36 +0200
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Subject: Re: cvs commit: src/sbin/kldunload kldunload.8 kldunload.c 
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In message <20040713.151549.66796909.imp@bsdimp.com>, "M. Warner Losh" writes:

>: I'm pretty sure i mean "multiple inheritance":
>: 
>: 	objects A, B, X, Y;
>: 	A is a child of X and Y;
>: 	B is a child of Y and Z;
>: 
>: that was called multiple inheritance last I read about OO.
>
>If you are talking types, that's multiple inheritance.  If you are
>talking instances in the object tree, that's multi pathing.
>
>newbus definitely supports multiple inheritance like you describe.
>Just use DEFINE_CLASS_2 for objects A and B and list X and Y for the
>first one and Y and Z for the second.

That was another thing I ran into with newbus: I had to define
things at compile time which I only knew at (auto-)configure time.


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.