Struct storing a reference to an expiry time registry and an item in the
registry. An instance of this struct should be owned by each client which is
to be registered with the expiry time registry.
Boost Software License Version 1.0. See LICENSE_BOOST.txt for details.
Alternatively, this file may be distributed under the terms of the Tango
3-Clause BSD License (see LICENSE_BSD.txt for details).
Hosts a ITimeoutClient with a timeout value to be managed by the TimeoutManager.
Build flags: -debug=TimeoutManager = verbose output