On Tuesday 18 February 2003 5:27 pm, Andre Poenitz wrote:
> On Tue, Feb 18, 2003 at 05:11:44PM +0000, Angus Leeming wrote:
> > So, it is quite conceivable for a CacheItem to exist on the grfx::Cache
> > after the BufferView has been destroyed but before the 2 second timer has
> > returned.
>
> Ok.
>
> Next question:
Help, help. I'm drowwwnnnning... glug, glug, .... silence.
> Is it ok to have
>
> weak_ptr<> ... view_
> BufferView * view() { return view_ }
> [...]
> weak_ptr<> bv = view();
>
> or do we need:
>
> weak_ptr<> ... view_
> weak_ptr<> view() { return view_ }
> [...]
> weak_ptr<> bv = view();
Ghostly voice from a passing cloud:
class SomeInset {
void cache_and_draw(BufferView * bv, ...) {
cache(bv);
draw(bv, ...);
}
void cache(BufferView * bv) {
view_ = bv->owner()->view();
}
BufferView * view() { return view_.get(); }
boost::weak_ptr<BufferView> view_;
};
Angus
