Re: Emitting signals from threads

[Mitko Haralanov <voidtrance gmail com>]

OK, I can do that but I think it might be still worth the bug.

Thanks for looking into this!

On Thu, Mar 7, 2019 at 10:47 AM Luca Bacci <luca bacci982 gmail com> wrote:
> try adding the line
> gtk_tree_view_column_set_resizable (gtk_tree_view_get_column(view, 0), TRUE);
>
> Il giorno gio 7 mar 2019 alle ore 19:43 Luca Bacci <luca bacci982 gmail com> ha scritto:
> > just setting column1 as resizable fixes the issue
> >
> > Il giorno gio 7 mar 2019 alle ore 18:35 Luca Bacci <luca bacci982 gmail com> ha scritto:
> > > Yes, go ahead.
> > >
> > > I don't know if that can be useful to you, but if you increase the time spent in usleep() to something 
> > > greater it works correctly.
> > > With usleep(10000) I get mixed results:
> > >
> > > Third column activated
> > > Third column activated
> > > Activated an other column
> > > Activated an other column
> > > Third column activated
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Third column activated
> > > Activated an other column
> > > Third column activated
> > > Third column activated
> > > Third column activated
> > > Activated an other column
> > >
> > > with usleep(100000) I always get correct results:
> > >
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > > Activated an other column
> > >
> > >
> > > Il giorno mer 6 mar 2019 alle ore 20:26 Mitko Haralanov <voidtrance gmail com> ha scritto:
> > > > OK, thank you.
> > > >
> > > > Please, let me know if you'd like me to file a bug for this?
> > > > Thanks
> > > >
> > > > On Wed, Mar 6, 2019 at 10:27 AM Luca Bacci <luca bacci982 gmail com> wrote:
> > > > > I'm working on it. But yes, this really seems a bug in Gtk.
> > > > >
> > > > > Il mer 6 mar 2019, 18:40 Mitko Haralanov <voidtrance gmail com> ha scritto:
> > > > > > Hi,
> > > > > >
> > > > > > Any update? Does anyone think this is a bug that should be filed against Gtk?
> > > > > >
> > > > > > Thanks
> > > > > >
> > > > > > On Thu, Feb 28, 2019 at 2:05 AM Luca Bacci <luca bacci982 gmail com> wrote:
> > > > > > > Hi, I can't promise I will find a solution but I'll certainly take a look at this
> > > > > > >
> > > > > > > Il gio 28 feb 2019, 02:13 Paul Davis <paul linuxaudiosystems com> ha scritto:
> > > > > > > > You are right, and I withdraw my remarks. As noted, I didn't read it carefully enough.
> > > > > > > >
> > > > > > > > But yes, g_idle_add_full() runs in the worker thread, however that's one thing that is always OK.
> > > > > > > >
> > > > > > > > On Wed, Feb 27, 2019 at 6:03 PM Mitko Haralanov <voidtrance gmail com> wrote:
> > > > > > > > > But that's not how the code is written:
> > > > > > > > >
> > > > > > > > > g_task_run_in_thread(obj->task, custom_object_work) ->
> > > > > > > > >   custom_object_worker() ->
> > > > > > > > >      signal_emit() ->
> > > > > > > > >         g_idle_add_full(..., signal_emitter, ...);
> > > > > > > > >
> > > > > > > > > signal_emitter() is the function that *actually* emits the signal.
> > > > > > > > > signal_emitter() is supposed to be running in the main context thread
> > > > > > > > > by the virtue of being the g_idle_add_full() callback.
> > > > > > > > >
> > > > > > > > > Are you saying that the g_idle_add_full() callback also runs in the
> > > > > > > > > worker thread?
> > > > > > > > >
> > > > > > > > > On Wed, Feb 27, 2019 at 4:54 PM Paul Davis <paul linuxaudiosystems com> wrote:
> > > > > > > > > > On Wed, Feb 27, 2019 at 5:46 PM Mitko Haralanov <voidtrance gmail com> wrote:
> > > > > > > > > > > How is that? The update is happening from a callback executed by the
> > > > > > > > > > > main context thread?
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > g_task_run_in_thread(obj->task, custom_object_worker);
> > > > > > > > > >
> > > > > > > > > > custom_object_worker() emits the "updated" signal. the handler modifies the model.
> > > > > > > >
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