Trait DnsRequestSender

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pub trait DnsRequestSender:
    Stream<Item = Result<(), ProtoError>>
    + Send
    + Unpin
    + 'static {
    // Required methods
    fn send_message(&mut self, message: DnsRequest) -> DnsResponseStream;
    fn shutdown(&mut self);
    fn is_shutdown(&self) -> bool;
}

Expand description

Types that implement this are capable of sending a serialized DNS message on a stream

The underlying Stream implementation should yield Some(()) whenever it is ready to send a message, NotReady, if it is not ready to send a message, and Err or None in the case that the stream is done, and should be shutdown.

Required Methods§

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fn send_message(&mut self, message: DnsRequest) -> DnsResponseStream

Send a message, and return a stream of response

§Return

A stream which will resolve to SerialMessage responses

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fn shutdown(&mut self)

Allows the upstream user to inform the underling stream that it should shutdown.

After this is called, the next time poll is called on the stream it would be correct to return Poll::Ready(Ok(())). This is not required though, if there are say outstanding requests that are not yet complete, then it would be correct to first wait for those results.

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