Re: Gtk and threads

[Owen Taylor <otaylor redhat com>]

Aaron Digulla <digulla@wi-pc44.fh-konstanz.de> writes:

> No, this is no question if Gtk supports threads. I have a threaded
> application which doesn't work as it should. The symptoms are like
> this:
> 
> My app calls gtk_clist_set_text () but the new text never shows
> up on the screen.
> 
> I added lots of debug printf()s and finally came up with this result
> which I don't understand:
> 
> Gtk stops in the select() in gdk.c. When CList draws something, then
> the select() *doesn't* come back !! Gtk hangs there infinitely. When
> I add a gtk_threads_wake() at the end of draw_row() in gtkclist.c,
> then the GUI is ok for the CList but button highlighting doesn't
> work.
> 
> Surely, this is not what should happen ? Why doesn't select() return
> on the X events ?

I must admit, I don't really understand what's going on here. 
It sounds like X is getting confused somehow. Are you sure
that you are enclosing the gtk_clist_set_text() call in
a:

 gdk_threads_enter()
 [...]
 gdk_threads_leave()

pair. Do you have example code that we could look at?

Regards,
                                        Owen
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