On Wed, 27 Feb 2019 09:49:43 -0800
Mitko Haralanov via gtk-list <gtk-list@gnome.org> wrote:
> However, as I understand it, if my signal is running in the main
> context, the signal handler should not be running at the same time as
> Gtk is recalculating/repainting the TreeView. It seems as if the
> threaded signal handler is not running in the main context. The above
> behavior is replicated even if I switched to use g_idle_add() instead
> of g_main_context_invoke_full().

I am not going to try to penetrate your code, and you may already know
this but a GObject signal handler executes in the thread which emits on
the signal.  If this is a GDK/GTK+ signal, this would/should be, in
almost all cases, the thread in which GTK+ runs, namely the thread
of the default main context.

g_idle_add() does not of itself emit a signal.  It executes a callback
in the main loop of the default main context.

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