Re: [Qemu-devel] [PATCH v3 2/5] qapi: Add pass-fd QMP command

[Luiz Capitulino]

On Fri, 15 Jun 2012 11:29:03 -0400
Corey Bryant <address@hidden> wrote:

> >> I'm not clear on what the problem is with returning the same error class
> >> for two different errors.  Could you explain?  I don't have a problem
> >> changing it if it's an issue.
> >
> > Because an mngt app/user won't know if what has happened was that the fd 
> > name
> > is invalid or if the fd name already exists.
> >
> 
> I agree, it makes sense so the management app can program based on the 
> error class.  It just seems like the error classes in general should be 
> able to be used multiple times if it fits, especially if we're trying to 
> avoid having too specific errors.
> 
> Maybe (in the future) something like a sub-class could be used? In other 
> words to allow using the same error class with unique sub-classes.

There's a discussion going on which is more or less the same topic:

 http://lists.gnu.org/archive/html/qemu-devel/2012-06/msg02243.html