cvs commit: src/sys/sys msg.h sem.h shm.h

Alexander Leidinger Alexander at Leidinger.net
Sat Nov 20 14:25:58 GMT 2004


On Sat, 20 Nov 2004 13:14:32 +0000 (GMT)
Robert Watson <rwatson at freebsd.org> wrote:

> > Are you talking about the userland API, or about the in-kernel API? 
> 
> Userland API; implementing the kernel side, modulo dealing with the
> loading and unloading issue, is relatively straight forward.
> 
> > If you are talking about the userland API: wouldn't it be more easy if
> > we use the following constraints?
> >  - The admin of the host has no direct access to the jails IPC, only an 
> >    admin in the jail can manage it (the host admin can use jexec to  
> >    manage IPC).
> >  - If a jail gets shut down, all IPC resources of this jail are removed.
> 
> Sure.  But that makes it fairly inconvenient to track resource usage over
> a large number of jails.

One step after another... :-) First we get the feature "everyone" is
asking about, then we look how to improve it. We don't have to keep
those restrictions, but in the mean time having them is better than the
actual way of doing things with System V IPC.

Bye,
Alexander.

-- 
              The best things in life are free, but the
                expensive ones are still worth a look.

http://www.Leidinger.net                       Alexander @ Leidinger.net
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