Re: [PATCH spice-server 3/3] red-worker: Reuse code to process display command

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> 
> On Tue, Jan 10, 2017 at 03:59:38PM +0000, Frediano Ziglio wrote:
> > Code to read and process display commands were the same
> > so use a common function for better reuse.
> > 
> > Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
> > ---
> >  server/red-worker.c | 38 ++++++++++++++++++--------------------
> >  1 file changed, 18 insertions(+), 20 deletions(-)
> > 
> > diff --git a/server/red-worker.c b/server/red-worker.c
> > index 394a935..49ec8e8 100644
> > --- a/server/red-worker.c
> > +++ b/server/red-worker.c
> > @@ -169,6 +169,19 @@ static RedDrawable *red_drawable_new(QXLInstance *qxl)
> >      return red;
> >  }
> >  
> > +static gboolean red_process_surface_cmd(RedWorker *worker, QXLCommandExt
> > *ext, gboolean loadvm)
> > +{
> > +    RedSurfaceCmd surface_cmd;
> > +
> > +    if (red_get_surface_cmd(&worker->mem_slots, ext->group_id,
> > &surface_cmd, ext->cmd.data)) {
> > +        return FALSE;
> > +    }
> > +    display_channel_process_surface_cmd(worker->display_channel,
> > &surface_cmd, loadvm);
> > +    // do not release resource as is released inside
> > display_channel_process_surface_cmd
> 
> I'd use this as an opportunity to improve that comment to something
> like:
> 
> // do not release resource ('release_info_ext') as it will be released inside
> // display_channel_surface_unref() once the last reference is dropped
> 

I think this comment is half an improvement and half worsening.
The improvement is "('release_info_ext')", the worsening display_channel_surface_unref.
Is up to display_channel_process_surface_cmd how to release the resource,
for instance can free resource directly on double create or surface too big.

Perhaps

  // do not release resource ('release_info_ext') as
  // display_channel_process_surface_cmd() will take care of

> 
> Acked-by: Christophe Fergeau <cfergeau@xxxxxxxxxx>
> 
> Christophe
> 

Frediano
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