Check whether a dbus caller is still alive

[Lawrence D'Oliveiro]

On Mon, 2 Oct 2017 09:01:23 +0100, David Llewellyn-Jones wrote:

> However, it was your reply above which solved it for me, by suggesting
> to "get the sender unique name from the message". I'd been trying to
> get the name from the *connection*, when I should have been focussing
> on the *message*.

Remember the connection is to the D-Bus Daemon, not to the bus peer.
All messages to or from other peers can go and come over a single
connection.