Simon, I'll look into the callback of the treeview_ function! Thanks for the stacktrace.
On Tue, 2009-11-10 at 14:14 +0000, Simon Marlow wrote: > > Yes, for the GUI part of Gtk2Hs, this is the only way to go. I think > > what I would like is a hook in the RTS of ghc that allows me to run > a C > > function each time the GC has finished. This C function can be run > from > > any OS thread. I would make this function call g_idle_add (which is > > thread-safe) to add a function that empties the list of finalizers > that > > I've accumulated during GC. If the main Gtk+ loop is currently > running > > or will run at some point in the future, the finalizers form the > list > > will be executed. If the Gtk+ is never run again then I probably > don't > > care anyway that the finalizers are not run since the program is > stuck > > or about to end. > > Could you not do this without a hook, by adding a call to g_idle_add > to > each finalizer? Perhaps with some intelligence so you don't add > multiple g_idle_adds if one is already pending. > > Calling it once per GC might be too much: there are lots of GCs. > Well, I admit, I didn't realize that the C function hook would only add the finalizers to the main Gtk+ loop rather than running them. So I guess, yes, I could implement the above and get the same effect. I'll ponder a bit more about this and see if there is a case where this doesn't work. I agree that it would be nice to get the -threaded flag working for future Gtk2Hs versions and for older GHCs. Cheers, Axel. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Gtk2hs-devel mailing list Gtk2hs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gtk2hs-devel
