Disable sends or receives on the socket.
void shutdown( shutdown_type what);
This function is used to disable send operations, receive operations, or both.
Determines what types of operation will no longer be allowed.
Thrown on failure.
Shutting down the send side of the socket:
boost::asio::ip::tcp::socket socket(io_service); ... socket.shutdown(boost::asio::ip::tcp::socket::shutdown_send);