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basic_datagram_socket::get_option (2 of 2 overloads)

Inherited from basic_socket.

Get an option from the socket.

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();