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Sets the non-blocking mode of the native acceptor implementation.
void native_non_blocking(
    bool mode,
    asio::error_code & ec);
This function is used to modify the non-blocking mode of the underlying native acceptor. It has no effect on the behaviour of the acceptor object's synchronous operations.
                  If true, the underlying acceptor is put into non-blocking
                  mode and direct system calls may fail with asio::error::would_block
                  (or the equivalent system error).
                
                  Set to indicate what error occurred, if any. If the mode
                  is false, but the current value of non_blocking()
                  is true, this function fails with asio::error::invalid_argument,
                  as the combination does not make sense.