Disclaimer: This is still just from quick Googling, I actually haven't done this myself, but I hope these pointers help. It looks to me like you would set up a GSocketService which has an incoming event, get the GSocketConnection's GSocket file descriptor, and then register that with a GIOChannel via g_io_add_watch. It also appears that one can write a handler for the client in a blocking manner in a separate thread via GThreadedSocketService.

My question is: how do I blend the socket server with the GTK3 main loop?

https://metacpan.org/pod/distribution/Gtk-Perl/Gtk/cookbook.pod#Event-driven-programming-concepts-in-Gtk

Thanks for answering
This almost certainly is what I need
My application seg faulted, I will research why, but if you have a clue, please tell me!


use Gtk3;
my $window = Gtk3::Window->new ('toplevel');
my $button = Gtk3::Button->new ('Quit');
$button->signal_connect (clicked => sub { Gtk3::main_quit });
$window->add ($button);
$window->show_all;
my $id = Gtk3->timeout_add(1000, \&handler, $data);
Gtk3::main;

sub handler {
    my ($data) = @_;
    print "timed out ... \n";
    # return 1 if you want the handler to be called again later
    # return 0 to stop the handler from being called again
    return 1;
}

result: perl test0.pl 
Segmentation fault (core dumped)
[download]

Thank you, I will check it out