pub struct RetryDnsHandle<H>where
    H: DnsHandle + Unpin + Send,
    H::Error: RetryableError,{ /* private fields */ }
Expand description

Can be used to reattempt queries if they fail

Note: this does not reattempt queries that fail with a negative response. For example, if a query gets a NODATA response from a name server, the query will not be retried. It only reattempts queries that effectively failed to get a response, such as queries that resulted in IO or timeout errors.

Whether an error is retryable by the RetryDnsHandle is determined by the RetryableError trait.

note Current value of this is not clear, it may be removed

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impl<H> RetryDnsHandle<H>where H: DnsHandle + Unpin + Send, H::Error: RetryableError,

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pub fn new(handle: H, attempts: usize) -> Self

Creates a new Client handler for reattempting requests on failures.

Arguments
  • handle - handle to the dns connection
  • attempts - number of attempts before failing

Trait Implementations§

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impl<H> Clone for RetryDnsHandle<H>where H: DnsHandle + Unpin + Send + Clone, H::Error: RetryableError,

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fn clone(&self) -> RetryDnsHandle<H>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<H> DnsHandle for RetryDnsHandle<H>where H: DnsHandle + Send + Unpin + 'static, H::Error: RetryableError,

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type Response = Pin<Box<dyn Stream<Item = Result<DnsResponse, <RetryDnsHandle<H> as DnsHandle>::Error>> + Send + Unpin>>

The associated response from the response stream, this should resolve to the Response messages
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type Error = <H as DnsHandle>::Error

Error of the response, generally this will be ProtoError
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fn send<R: Into<DnsRequest>>(&mut self, request: R) -> Self::Response

Send a message via the channel in the client Read more
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fn is_verifying_dnssec(&self) -> bool

Only returns true if and only if this DNS handle is validating DNSSEC. Read more
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fn is_using_edns(&self) -> bool

Allow for disabling EDNS
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fn lookup(&mut self, query: Query, options: DnsRequestOptions) -> Self::Response

A classic DNS query Read more

Auto Trait Implementations§

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impl<H> RefUnwindSafe for RetryDnsHandle<H>where H: RefUnwindSafe,

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impl<H> Send for RetryDnsHandle<H>

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impl<H> Sync for RetryDnsHandle<H>

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impl<H> Unpin for RetryDnsHandle<H>

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impl<H> UnwindSafe for RetryDnsHandle<H>where H: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more