Re: [PATCH spice-server] red_worker: Do not sent empty monitor config message

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On Thu, Oct 01, 2015 at 05:19:23PM +0200, Pavel Grunt wrote:
> Resolves:
> https://bugzilla.redhat.com/show_bug.cgi?id=1061942
> ---
>  server/red_worker.c | 10 ++++++----
>  1 file changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/server/red_worker.c b/server/red_worker.c
> index e2feb23..a106923 100644
> --- a/server/red_worker.c
> +++ b/server/red_worker.c
> @@ -9144,7 +9144,6 @@ static void red_marshall_monitors_config(RedChannelClient *rcc, SpiceMarshaller
>      SpiceMsgDisplayMonitorsConfig *msg = spice_malloc0(sizeof(*msg) + heads_size);
>      int count = 0; // ignore monitors_config->count, it may contain zero width monitors, remove them now
>  
> -    red_channel_client_init_send_data(rcc, SPICE_MSG_DISPLAY_MONITORS_CONFIG, NULL);
>      for (i = 0 ; i < monitors_config->count; ++i) {
>          if (monitors_config->heads[i].width == 0 || monitors_config->heads[i].height == 0) {
>              continue;
> @@ -9157,9 +9156,12 @@ static void red_marshall_monitors_config(RedChannelClient *rcc, SpiceMarshaller
>          msg->heads[count].y = monitors_config->heads[i].y;
>          count++;
>      }
> -    msg->count = count;
> -    msg->max_allowed = monitors_config->max_allowed;
> -    spice_marshall_msg_display_monitors_config(base_marshaller, msg);
> +    if (count > 0) {
> +        red_channel_client_init_send_data(rcc, SPICE_MSG_DISPLAY_MONITORS_CONFIG, NULL);
> +        msg->count = count;
> +        msg->max_allowed = monitors_config->max_allowed;
> +        spice_marshall_msg_display_monitors_config(base_marshaller, msg);
> +    }
>      free(msg);
>  }

Do you know why we get this empty monitors config from the guest in the
first place?

Christophe

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