libseed-list Suspected thread issues with callbacks.

[Alan Knowles <alan akbkhome com>]

I was wondering if you had some insight into this issue.

Code is here :http://www.akbkhome.com/svn/seed/gtk.js

Basically it's a pretty simple test, creates 2 widgets on a window, a 
button, and a treeview.
After the treeview is filled via a Gio async file read, you can press on 
any of the tree elements, and it set's the button text to whatever tree 
node you pressed.

What I found however was that it would randomly segfault after a few 
presses, running gdb, indicated that the exact location of the segfault 
was not fixed, and was often inside a gtk internal refresh - unrelated 
to the setting code.

My suspicion is that this is due to thread locking (or lack thereof) 
with the Javascript code probably running in a different thread to 
Gtk.main()..

Do you have any thoughts. (cursor-changed code below for reference - the 
gtk.js relies on a data file, so it's a bit difficult to test)

Regards
Alan


 'cursor-changed'  : function(tv, a) {
                             var iter = new Gtk.TreeIter();
                          
                           //console.log('changed');
                           var s = tv.selection;
                           s.get_selected(tv.model, iter);
                          
                          
                          // var val = "";
                           value = new GObject.Value();
                           tv.model.get_value(iter, 0, value);
                          
                           console.log(value.get_string());
                          // _g.button.set_label(''+value.get_string());
                         
                           //Seed.print( value.get_string());
                           return true;
                          
                          
                      
                       }