Re: [PATCH 05/20] dcc: use PipeItem refcounting for ImageItem

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> 
> Since the base class now implements refcounting, there's no need to
> re-invent it here.
> ---
>  server/dcc-send.c        |  4 ++--
>  server/dcc.c             | 19 +++++--------------
>  server/dcc.h             |  3 +--
>  server/display-channel.c |  2 +-
>  4 files changed, 9 insertions(+), 19 deletions(-)
> 
> diff --git a/server/dcc-send.c b/server/dcc-send.c
> index eb866cf..b8d1157 100644
> --- a/server/dcc-send.c
> +++ b/server/dcc-send.c
> @@ -728,7 +728,7 @@ static void
> red_pipe_replace_rendered_drawables_with_images(DisplayChannelClient
>  
>          spice_assert(image);
>          red_channel_client_pipe_remove_and_release(RED_CHANNEL_CLIENT(dcc),
>          &dpi->dpi_pipe_item);
> -        pipe_item = &image->link;
> +        pipe_item = &image->base;
>      }
>  }
>  
> @@ -1949,7 +1949,7 @@ static void red_marshall_image(RedChannelClient *rcc,
> SpiceMarshaller *m, ImageI
>      chunks = spice_chunks_new_linear(item->data, bitmap.stride * bitmap.y);
>      bitmap.data = chunks;
>  
> -    red_channel_client_init_send_data(rcc, SPICE_MSG_DISPLAY_DRAW_COPY,
> &item->link);
> +    red_channel_client_init_send_data(rcc, SPICE_MSG_DISPLAY_DRAW_COPY,
> &item->base);
>  
>      copy.base.surface_id = item->surface_id;
>      copy.base.box.left = item->pos.x;
> diff --git a/server/dcc.c b/server/dcc.c
> index c952042..4e450b5 100644
> --- a/server/dcc.c
> +++ b/server/dcc.c
> @@ -184,9 +184,8 @@ ImageItem
> *dcc_add_surface_area_image(DisplayChannelClient *dcc, int surface_id,
>  
>      item = (ImageItem *)spice_malloc_n_m(height, stride, sizeof(ImageItem));
>  
> -    pipe_item_init(&item->link, PIPE_ITEM_TYPE_IMAGE);
> +    pipe_item_init(&item->base, PIPE_ITEM_TYPE_IMAGE);
>  
> -    item->refs = 1;
>      item->surface_id = surface_id;
>      item->image_format =
>          spice_bitmap_from_surface_type(surface->context.format);
> @@ -214,9 +213,9 @@ ImageItem
> *dcc_add_surface_area_image(DisplayChannelClient *dcc, int surface_id,
>      }
>  
>      if (pos) {
> -        red_channel_client_pipe_add_after(RED_CHANNEL_CLIENT(dcc),
> &item->link, pos);
> +        red_channel_client_pipe_add_after(RED_CHANNEL_CLIENT(dcc),
> &item->base, pos);
>      } else {
> -        red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), &item->link);
> +        red_channel_client_pipe_add(RED_CHANNEL_CLIENT(dcc), &item->base);
>      }
>  
>      return item;
> @@ -1591,14 +1590,6 @@ int dcc_handle_migrate_data(DisplayChannelClient *dcc,
> uint32_t size, void *mess
>      return TRUE;
>  }
>  
> -static void image_item_unref(ImageItem *item)
> -{
> -    if (--item->refs != 0)
> -        return;
> -
> -    free(item);
> -}
> -
>  static void upgrade_item_unref(DisplayChannel *display, UpgradeItem *item)
>  {
>      if (--item->refs != 0)
> @@ -1624,7 +1615,7 @@ static void
> release_item_after_push(DisplayChannelClient *dcc, PipeItem *item)
>          upgrade_item_unref(display, (UpgradeItem *)item);
>          break;
>      case PIPE_ITEM_TYPE_IMAGE:
> -        image_item_unref((ImageItem *)item);
> +        pipe_item_unref(item);
>          break;
>      case PIPE_ITEM_TYPE_GL_SCANOUT:
>      case PIPE_ITEM_TYPE_GL_DRAW:
> @@ -1674,7 +1665,7 @@ static void
> release_item_before_push(DisplayChannelClient *dcc, PipeItem *item)
>          upgrade_item_unref(display, (UpgradeItem *)item);
>          break;
>      case PIPE_ITEM_TYPE_IMAGE:
> -        image_item_unref((ImageItem *)item);
> +        pipe_item_unref(item);
>          break;
>      case PIPE_ITEM_TYPE_CREATE_SURFACE: {
>          SurfaceCreateItem *surface_create = SPICE_CONTAINEROF(item,
>          SurfaceCreateItem,
> diff --git a/server/dcc.h b/server/dcc.h
> index 071a9fc..3d7870b 100644
> --- a/server/dcc.h
> +++ b/server/dcc.h
> @@ -136,8 +136,7 @@ typedef struct GlDrawItem {
>  } GlDrawItem;
>  
>  typedef struct ImageItem {
> -    PipeItem link;
> -    int refs;
> +    PipeItem base;
>      SpicePoint pos;
>      int width;
>      int height;
> diff --git a/server/display-channel.c b/server/display-channel.c
> index a6d90cf..ac10724 100644
> --- a/server/display-channel.c
> +++ b/server/display-channel.c
> @@ -1980,7 +1980,7 @@ static void hold_item(RedChannelClient *rcc, PipeItem
> *item)
>          ((UpgradeItem *)item)->refs++;
>          break;

Why not these ?

>      case PIPE_ITEM_TYPE_IMAGE:
> -        ((ImageItem *)item)->refs++;
> +        pipe_item_ref(item);
>          break;
>      default:
>          spice_warn_if_reached();

Frediano
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