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Inherited from socket_base.
Socket option to send keep-alives.
typedef implementation_defined keep_alive;
Implements the SOL_SOCKET/SO_KEEPALIVE socket option.
Setting the option:
asio::ip::tcp::socket socket(my_context); ... asio::socket_base::keep_alive option(true); socket.set_option(option);
Getting the current option value:
asio::ip::tcp::socket socket(my_context); ... asio::socket_base::keep_alive option; socket.get_option(option); bool is_set = option.value();
Header: asio/basic_datagram_socket.hpp
Convenience header: asio.hpp