--- "Giovanni P. Deretta" <gpderetta@gmail.com> wrote:
I think that there should be NO portable way to get the underlying core_socket from a stream_socket. In fact, while the inheritance holds for BSD sockets (i.e posix sockets and winapi SOCKETS), it probably does not make any sense for any other kind of transport. Generic code should NOT assume that datagram sockets, acceptor sockets, stream sockets of a given domain can be converted to the same type.
The changes being proposed in this thread don't introduce inheritance so that they can be treated as the same type. The core_socket template would be a private base class, *and* it's a template on the service type, i.e. the base class for stream_socket is: core_socket<stream_socket_service<> > and the base for datagram_socket is: core_socket<datagram_socket_service<> > So no conversion to the same type possible here. Note that I only suggest using the same core_socket template as a base for both to eliminate code duplication. If there's not sufficient merit in avoiding that duplication, separate bases (core_stream_socket<...> and core_datagram_socket<...>) can be used. Cheers, Chris