basic_socket::get_option (2 of 2 overloads)

Get an option from the socket.

template<
    typename GettableSocketOption>
void get_option(
    GettableSocketOption & option,
    asio::error_code & ec) const;

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

Parameters

option: The option value to be obtained from the socket.
ec: Set to indicate what error occurred, if any.

Example

Getting the value of the SOL_SOCKET/SO_KEEPALIVE option:

asio::ip::tcp::socket socket(my_context);
...
asio::ip::tcp::socket::keep_alive option;
asio::error_code ec;
socket.get_option(option, ec);
if (ec)
{
  // An error occurred.
}
bool is_set = option.value();