register_session_gc_handler proposal

Hi folks, Sorry to bother you, as I know you are quite busy, but I have a problem and maybe a elegant solution does not exist right now. The case is simple: A user is allowed to upload files to the server, which are store in a temporary location and their filenames are stored in the session. The user leaves the site and the session gets destroyed, but the files remain untouched. If I can hook to the gc session function that will solve my case, but currently with session_set_save_handler I have to rewrite session handling, which I don't need... So a simple hook will be very useful. I know there are problems as how will I know which entry has been destroyed... Regards, Emil Ivanov Sofia univesity