Re: possible memleak with pangoft2?

[Olexiy Avramchenko <olexiy ctech cn ua>]

Hello, John ;)

You're leaking fontmap object. I dont know when fontmap object gets all extra 
references (just have no time to look inside), but its natural to have only one 
instance of it per app.
> static void
> test( const char *text, const char *font ) 
> {
>         PangoFontMap *fontmap;
>         PangoContext *context;
>         PangoLayout *layout;
>         PangoFontDescription *font_description;
>         PangoRectangle logical_rect;
>
>         fontmap = pango_ft2_font_map_new();
>         context = pango_ft2_font_map_create_context( 
>                 PANGO_FT2_FONT_MAP( fontmap ) );
>
>         layout = pango_layout_new( context );
>
>         font_description = pango_font_description_from_string( font );
>         pango_layout_set_font_description( layout, font_description );
>         pango_font_description_free( font_description );
>
>         pango_layout_set_markup( layout, text, -1 );
>
>         /* Comment this line out and the leak stops.
>          */
>         pango_layout_get_extents( layout, NULL, &logical_rect );
g_print("layout:  %d\n", G_OBJECT(layout)->ref_count);
g_print("context: %d\n", G_OBJECT(context)->ref_count);
g_print("fontmap: %d\n---\n", G_OBJECT(fontmap)->ref_count);
        g_object_unref( layout );
g_print("context: %d\n", G_OBJECT(context)->ref_count);
g_print("fonmap:  %d\n---\n", G_OBJECT(fontmap)->ref_count);
        g_object_unref( context );
g_print("fontmap: %d\n---\n", G_OBJECT(fontmap)->ref_count);
        g_object_unref( fontmap );
g_print("fontmap: %d (%s)\n---\n", G_OBJECT(fontmap)->ref_count, 
G_IS_OBJECT(fontmap)?"valid":"invalid");
> }
[skipped]

Look at output: I have 19 references and valid fontmap object after all unrefs.

	Olexiy