...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Get an option from the socket.
template< typename GettableSocketOption> boost::system::error_code get_option( GettableSocketOption & option, boost::system::error_code & ec) const;
This function is used to get the current value of an option on the socket.
The option value to be obtained from the socket.
Set to indicate what error occurred, if any.
Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:
boost::asio::ip::tcp::socket socket(io_service); ... boost::asio::ip::tcp::socket::keep_alive option; boost::system::error_code ec; socket.get_option(option, ec); if (ec) { // An error occurred. } bool is_set = option.get();