I tried to re-use a WockyConnector to reconnect after my successful connection was later disconnected. Initially wocky_connector_connect_async() failed immediately because priv->result was non-NULL, but I noticed that most (but not all!) code paths end up setting priv->result back to NULL. So I made it consistent http://cgit.freedesktop.org/wocky/commit/?id=e77ed03f87 and now it crashes later:
tcp_srv_connected: wocky-connector.c:941: SRV connection succeeded
wocky:ERROR:wocky-connector.c:1073:maybe_old_ssl: assertion failed: (priv->conn == NULL)
which is to say: priv->conn, which is the WockyXmppConnection, is never set to NULL once the connection is established.
I think it would be useful to be able to re-use the same connector. A start on fixing this would be to make the WockyXmppConnection (and full JID and session id) be the GSimpleAsyncResult's op_res_gpointer (probably fixing bug 35351 in passing).