Function cancel

include/asio/basic_socket.hpp:644–649

        "or earlier. Consult documentation for details."))
#endif
  void cancel()
  {
    asio::error_code ec;
    impl_.get_service().cancel(impl_.get_implementation(), ec);
    asio::detail::throw_error(ec, "cancel");
  }

  /// Cancel all asynchronous operations associated with the socket.
  /**