[libvirt] [PATCH 1/3] Add a virGetLastErrorMessage() function

[Daniel P. Berrange]

On Fri, May 10, 2013 at 11:26:42AM -0600, Eric Blake wrote:
> On 05/10/2013 11:17 AM, Daniel P. Berrange wrote:
> > From: "Daniel P. Berrange" <berrange at redhat.com>
> > 
> > Apps using libvirt will often have code like
> > 
> >    if (virXXXX() < 0) {
> >       virErrorPtr err = virGetLastError();
> >       fprintf(stderr, "Something failed: %s\n",
> >               err && err->message ? err->message :
> >               "unknown error");
> >       return -1;
> >    }
> > 
> > Checking for a NULL error object or message leads to very
> > verbose code. A virGetLastErrorMessage() helper from libvirt
> > can simplify this to
> > 
> >    if (virXXXX() < 0) {
> >       fprintf(stderr, "Something failed: %s\n",
> >               virGetLastErrorMessage());
> >       return -1;
> >    }
> > 
> > Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> > ---
> >  include/libvirt/virterror.h |  2 ++
> >  src/libvirt_public.syms     |  5 +++++
> >  src/util/virerror.c         | 21 +++++++++++++++++++++
> >  3 files changed, 28 insertions(+)
> 
> ACK.  Client-side only, so it doesn't need RPC support.
> 
> Should we update examples/hellolibvirt/hellolibvirt.c to use it?

Good idea, I'll send another patch for that.


Daniel
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