basic_socket::set_option (2 of 2 overloads)

Set an option on the socket.

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

This function is used to set an option on the socket.

Parameters

option: The new option value to be set on the socket.
ec: Set to indicate what error occurred, if any.

Example

Setting the IPPROTO_TCP/TCP_NODELAY option:

asio::ip::tcp::socket socket(io_context);
...
asio::ip::tcp::no_delay option(true);
asio::error_code ec;
socket.set_option(option, ec);
if (ec)
{
  // An error occurred.
}