basic_stream_socket::get_option (1 of 2 overloads)

Inherited from basic_socket.

Get an option from the socket.

template<
    typename GettableSocketOption>
void get_option(
    GettableSocketOption & option) const;

This function is used to get the current value of an option on the socket.

Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:

asio::ip::tcp::socket socket(my_context);
...
asio::ip::tcp::socket::keep_alive option;
socket.get_option(option);
bool is_set = option.value();