Re: [PATCH v3] qxl: inline documentation for get_command and req_cmd_notification

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On Wed, 2016-01-27 at 06:52 -0500, Frediano Ziglio wrote:
> > 
> > From: Frediano Ziglio <fziglio@xxxxxxxxxx>
> > 
> > Signed-off-by: Frediano Ziglio <fziglio@xxxxxxxxxx>
> > Signed-off-by: Jonathon Jongsma <jjongsma@xxxxxxxxxx>
> > ---
> > 
> > Changes:
> >  - add some newlines
> >  - fix documentation for return of get_command
> > 
> >  server/spice-qxl.h | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> > diff --git a/server/spice-qxl.h b/server/spice-qxl.h
> > index e1f14e7..4d02a84 100644
> > --- a/server/spice-qxl.h
> > +++ b/server/spice-qxl.h
> > @@ -166,7 +166,17 @@ struct QXLInterface {
> >      void (*set_mm_time)(QXLInstance *qin, uint32_t mm_time)
> >      SPICE_GNUC_DEPRECATED;
> >  
> >      void (*get_init_info)(QXLInstance *qin, QXLDevInitInfo *info);
> > +
> > +    /* Retrieve the next command to be processed
> > +     * This call should be non-blocking. If no commands are available, it
> > +     * should return 0, or 1 if a command was retrieved */
> 
> Currently <>0 (any C true value) is fine, not only 1.

Right, spice-server currently accepts any non-zero value. But I think it's
useful to suggest in the documentation that people implementing this function
should use only 0 or 1, even if we technically can handle values other than 1.


> 
> >      int (*get_command)(QXLInstance *qin, struct QXLCommandExt *cmd);
> > +
> > +    /* Request notification when new commands are available
> > +     * When a new command becomes available, the spice server should be
> > +     * notified by calling spice_qxl_wakeup(). If commands are already
> > +     * available, this function should return FALSE and no notification
> > +     * triggered */
> 
> This is a C interface. stdbool.h define false, not FALSE.

OK. Would you be willing to ACK If I change s/FALSE/false/?

> 
> >      int (*req_cmd_notification)(QXLInstance *qin);
> >      void (*release_resource)(QXLInstance *qin, struct QXLReleaseInfoExt
> >      release_info);
> >      int (*get_cursor_command)(QXLInstance *qin, struct QXLCommandExt *cmd);
> 
> Frediano
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