Reference counting in SocketClient event signal is broken
When I connect an empty signal handler to the event signal of SocketClient the connectable and the connection are unrefed.
Here is the signal handler:
void socket_client_event (Gio::SocketClientEvent event,
const Glib::RefPtr<Gio::SocketConnectable> &connectable,
const Glib::RefPtr<Gio::IOStream> &connection) {
}
Here is the connection code:
socket_client->signal_event ().connect (sigc::ptr_fun (&socket_client_event));
I get this messages from my app:
(process:9046): GLib-GIO-CRITICAL **: g_socket_connection_connect: assertion 'G_IS_SOCKET_CONNECTION (connection)' failed
(process:9046): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
(process:9046): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion 'G_IS_OBJECT (object)' failed
(process:9046): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion 'G_IS_OBJECT (object)' failed
See https://stackoverflow.com/q/50769274/426242 for a full example.
As a workaround I have written this event handler which is quite ugly:
void socket_client_event (Gio::SocketClientEvent event,
const Glib::RefPtr<Gio::SocketConnectable> &connectable,
const Glib::RefPtr<Gio::IOStream> &connection) {
// Workaround for reference counting problems
if (connectable) {
connectable->reference ();
}
if (connection) {
connection->reference ();
}
}
Or am I just doing something wrong here?