Re: [Qemu-devel] [PATCH for-2.5 3/3] vhost-user-test: fix crash with glib < 2.36

["Marc-André Lureau" <mlureau@redhat.com>]

----- Original Message -----
> On Fri, Nov 27, 2015 at 03:41:20PM +0100, marcandre.lureau@redhat.com wrote:
> > From: Marc-André Lureau <marcandre.lureau@redhat.com>
> > 
> > The prepare callback needs to be implemented with glib < 2.36.
> > 
> > Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
> 
> But nothing prevents us from implementing it for all versions.

Sure, it's just a kind of dead code for me that should be removed in future version. So I prefer to keep it under #ifdef.

> > ---
> >  tests/vhost-user-test.c | 13 ++++++++++++-
> >  1 file changed, 12 insertions(+), 1 deletion(-)
> > 
> > diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c
> > index 29205ed..4ab48e4 100644
> > --- a/tests/vhost-user-test.c
> > +++ b/tests/vhost-user-test.c
> > @@ -506,8 +506,19 @@ test_migrate_source_check(GSource *source)
> >      return FALSE;
> >  }
> >  
> > +#if !GLIB_CHECK_VERSION(2,36,0)
> > +static gboolean
> > +test_migrate_source_prepare(GSource *source, gint *timeout)
> > +{
> > +    *timeout = -1;
> > +    return FALSE;
> > +}
> > +#endif
> > +
> >  GSourceFuncs test_migrate_source_funcs = {
> > -    NULL,
> > +#if !GLIB_CHECK_VERSION(2,36,0)
> > +    test_migrate_source_prepare,
> > +#endif
> >      test_migrate_source_check,
> 
> So now for version 2.36 check will be used instead of prepare.
> That's clearly wrong.

instead?
> 
> I'll switch this to named initializers to avoid the mess.

I don't follow what is the mess here.

> 
> >      NULL,
> >      NULL
> > --
> > 2.5.0
>