Re: Message passing in user-land

[Marcus Brinkmann]

On Mon, Jul 15, 2002 at 12:21:55PM +0200, rreale@iol.it wrote:
> Why we can't implement message passing entirely in user-space rather
> than in the kernel?

Imagine you remove all IPC from the kernel.  How do you send a user-space
message to another process?  You can't.

That said, there is a lot of things in GNU Mach that can be in user space.
Mach is a microkernel of the first generation.  Try to take a look at L4,
which is a modern microkernel that is extremely minimal.

Thanks,
Marcus

-- 
`Rhubarb is no Egyptian god.' GNU      http://www.gnu.org    marcus@gnu.org
Marcus Brinkmann              The Hurd http://www.gnu.org/software/hurd/
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de/