struct _MarlinIconInfo
{
    GObject         parent;

    guint64         last_use_time;
    gboolean        is_first_ref;
    GdkPixbuf       *pixbuf;
    char            *display_name;
    char            *icon_name;
};

typedef struct _MarlinIconInfo	MarlinIconInfo;

MarlinIconInfo *
marlin_icon_info_lookup (GIcon *icon, int size)
{
    MarlinIconInfo *icon_info;
    GdkPixbuf *pixbuf = NULL;

    g_return_val_if_fail (icon && G_IS_ICON (icon), NULL);
    if (G_IS_LOADABLE_ICON (icon)) {
        LoadableIconKey lookup_key;
        LoadableIconKey *key;

        if (loadable_icon_cache == NULL) {
            loadable_icon_cache =
                g_hash_table_new_full ((GHashFunc)loadable_icon_key_hash,
                                       (GEqualFunc)loadable_icon_key_equal,
                                       (GDestroyNotify) loadable_icon_key_free,
                                       (GDestroyNotify) destroy_cache_entry);
        }

        lookup_key.icon = icon;
        lookup_key.size = size;
        icon_info = g_hash_table_lookup (loadable_icon_cache, &lookup_key);
        if (icon_info != NULL) {
            //g_message ("CACHED %s stream %s\n", G_STRFUNC, g_icon_to_string (icon));
            return g_object_ref (icon_info);
        }

        char *str_icon = g_icon_to_string (icon);
        pixbuf = gdk_pixbuf_new_from_file_at_size (str_icon, size, size, NULL);
        icon_info = marlin_icon_info_new_for_pixbuf (pixbuf);
        if (pixbuf != NULL) {
            key = loadable_icon_key_new (icon, size);
            g_hash_table_insert (loadable_icon_cache, key, g_object_ref (icon_info));
            g_free (str_icon);
        }

        return icon_info;
//snip
}