Inherited from socket_base. IO control command to get the amount of data that can be read without blocking. typedef implementation_defined bytes_readable; Implements the FIONREAD IO control command. Exampleboost::asio::ip::tcp::socket socket(io_service); ... boost::asio::socket_base::bytes_readable command(true); socket.io_control(command); std::size_t bytes_readable = command.get(); |