[libvirt] [PATCH] Improve error reporting for virConnectGetHostname calls

[Daniel P. Berrange]

On Wed, Oct 28, 2009 at 03:32:32PM +0100, Chris Lalancette wrote:
> Cole Robinson wrote:
> 
> >  
> >  static int umlListDomains(virConnectPtr conn, int *ids, int nids) {
> > diff --git a/src/util/util.c b/src/util/util.c
> > index 98f8a14..49eac6d 100644
> > --- a/src/util/util.c
> > +++ b/src/util/util.c
> > @@ -1804,30 +1804,42 @@ int virDiskNameToIndex(const char *name) {
> >  #define AI_CANONIDN 0
> >  #endif
> >  
> > -char *virGetHostname(void)
> > +char *virGetHostname(virConnectPtr conn)
> 
> To be honest, I'm not sure we even need to add the "conn" parameter here.  I
> seem to remember DanB saying that it was only needed in very few circumstances
> anymore.  Can't we just call "virReportSystemError(NULL)", etc?  That keeps this
> function signature a bit simpler.  (It's not a deal-breaker in any case, just
> nice to not have to require this parameter)

That's correct, we should avoid  adding virConnectPtr to any new /existing
internal APIs where-ever  possible. The only real exception is if the
internal function needs to invoke one of the other public driver APis
directly.

Daniel
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