Notifies the MySQL server that the client wants to end the session and shutdowns SSL.
void quit( error_code& err, diagnostics& diag);
Sends a quit request to the MySQL server. If the connection is using SSL, this function will also perform the SSL shutdown. You should close the underlying physical connection after calling this function.
parameter fulfills the
connection::close instead of this function,
as it also takes care of closing the underlying stream.