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Date: Wed, 11 Jul 2001 18:02:04 -0700 (PDT)
From: Rajeev Bector <rajeev_bector@yahoo.com>
Subject: Re: new IPC mechanism ideas
To: "H. Peter Anvin" <hpa@transmeta.com>
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com
In-Reply-To: <3B4CF5E8.F9F9C429@transmeta.com>
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The point is that you can do IPC using
this scheme which is
1) protected (as compared to a shared
   memory (shm) scheme in which any process
   can write anywhere and corrupt
   everything)

2) involves only 1 copy.

Thanks,
Rajeev

--- "H. Peter Anvin" <hpa@transmeta.com> wrote:
> Rajeev Bector wrote:
> > 
> > If your driver is in the kernel,
> > then you dont need that. All processes
> > use system-calls (or ioctls) to send
> > messages and when they do recv(),
> > they get a pointer to a location
> > (where they are mapped to via mmap)
> > and they can read directly. In this
> > scheme, you dont need any traditional
> > UNIX IPC mechanism to work.
> > 
> 
> And the point of this is?
> 
> 	-hpa
> -
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