DBusServer is a helper for listening to and accepting D-Bus connections.
This can be used to create a new D-Bus server, allowing two peers to use the D-Bus protocol for their own specialized communication. A
server instance provided in this way will not perform message routing or implement the org.freedesktop.DBus interface.
To just export an object on a well-known name on a message bus, such as the session or system bus, you should instead use
g_bus_own_name.
An example of peer-to-peer communication with GDBus can be found in
gdbus-example-peer.c.
Note that a minimal DBusServer will accept connections from any peer. In many use-cases it will be necessary
to add a DBusAuthObserver that only accepts connections that have successfully
authenticated as the same user that is running the DBusServer. Since GLib 2.68 this can be achieved more simply
by passing the g_dbus_server_flags_authentication_require_same_user flag to the server.