Struct async_std_resolver::lookup_ip::LookupIpFuture
source · [−]pub struct LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin, { /* private fields */ }Expand description
The Future returned from crate::AsyncResolver when performing an A or AAAA lookup.
This type isn’t necessarily something that should be used by users, see the default TypeParameters are generally correct
Implementations
sourceimpl<C, E> LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin,
impl<C, E> LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin,
sourcepub fn lookup(
names: Vec<Name, Global>,
strategy: LookupIpStrategy,
client_cache: CachingClient<C, E>,
options: DnsRequestOptions,
hosts: Option<Arc<Hosts>>,
finally_ip_addr: Option<RData>
) -> LookupIpFuture<C, E>ⓘNotable traits for LookupIpFuture<C, E>impl<C, E> Future for LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin, type Output = Result<LookupIp, ResolveError>;
pub fn lookup(
names: Vec<Name, Global>,
strategy: LookupIpStrategy,
client_cache: CachingClient<C, E>,
options: DnsRequestOptions,
hosts: Option<Arc<Hosts>>,
finally_ip_addr: Option<RData>
) -> LookupIpFuture<C, E>ⓘNotable traits for LookupIpFuture<C, E>impl<C, E> Future for LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin, type Output = Result<LookupIp, ResolveError>;
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin, type Output = Result<LookupIp, ResolveError>;
Perform a lookup from a hostname to a set of IPs
Arguments
names- a set of DNS names to attempt to resolve, they will be attempted in queue order, i.e. the first isnames.pop(). Upon each failure, the next will be attempted.strategy- the lookup IP strategy to useclient_cache- cache with a connection to use for performing all lookups
Trait Implementations
sourceimpl<C, E> Future for LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin,
impl<C, E> Future for LookupIpFuture<C, E> where
C: 'static + DnsHandle<Error = E>,
E: 'static + Into<ResolveError> + From<ProtoError> + Error + Clone + Send + Unpin,
type Output = Result<LookupIp, ResolveError>
type Output = Result<LookupIp, ResolveError>
The type of value produced on completion.
sourcefn poll(
self: Pin<&mut LookupIpFuture<C, E>>,
cx: &mut Context<'_>
) -> Poll<<LookupIpFuture<C, E> as Future>::Output>
fn poll(
self: Pin<&mut LookupIpFuture<C, E>>,
cx: &mut Context<'_>
) -> Poll<<LookupIpFuture<C, E> as Future>::Output>
Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
Auto Trait Implementations
impl<C, E> !RefUnwindSafe for LookupIpFuture<C, E>
impl<C, E> Send for LookupIpFuture<C, E>
impl<C, E> !Sync for LookupIpFuture<C, E>
impl<C, E> Unpin for LookupIpFuture<C, E>
impl<C, E> !UnwindSafe for LookupIpFuture<C, E>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> FutureExt for T where
T: Future + ?Sized,
impl<T> FutureExt for T where
T: Future + ?Sized,
sourcefn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
Map this future’s output to a different type, returning a new future of the resulting type. Read more
sourcefn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
Map this future’s output to a different type, returning a new future of the resulting type. Read more
sourcefn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Chain on a computation for when a future finished, passing the result of
the future to the provided closure f. Read more
sourcefn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
Wrap this future in an Either future, making it the left-hand variant
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sourcefn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
Wrap this future in an Either future, making it the right-hand variant
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sourcefn into_stream(self) -> IntoStream<Self>
fn into_stream(self) -> IntoStream<Self>
Convert this future into a single element stream. Read more
sourcefn flatten(self) -> Flatten<Self> where
Self::Output: Future,
fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
Flatten the execution of this future when the output of this future is itself another future. Read more
sourcefn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
Flatten the execution of this future when the successful result of this future is a stream. Read more
sourcefn fuse(self) -> Fuse<Self>
fn fuse(self) -> Fuse<Self>
Fuse a future such that poll will never again be called once it has
completed. This method can be used to turn any Future into a
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sourcefn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
Do something with the output of a future before passing it on. Read more
sourcefn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
Catches unwinding panics while polling the future. Read more
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fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
Turn this future into a future that yields () on completion and sends
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sourcefn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>> where
Self: 'a + Send,
fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>> where
Self: 'a + Send,
Wrap the future in a Box, pinning it. Read more
sourcefn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
Wrap the future in a Box, pinning it. Read more
sourcefn unit_error(self) -> UnitError<Self>
fn unit_error(self) -> UnitError<Self>
Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = ()>. Read more
sourcefn never_error(self) -> NeverError<Self>
fn never_error(self) -> NeverError<Self>
Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = Never>. Read more
sourcefn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
A convenience for calling Future::poll on Unpin future types.
sourcefn now_or_never(self) -> Option<Self::Output>
fn now_or_never(self) -> Option<Self::Output>
Evaluates and consumes the future, returning the resulting output if
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sourceimpl<T> FutureExt for T where
T: Future + ?Sized,
impl<T> FutureExt for T where
T: Future + ?Sized,
sourcefn delay(self, dur: Duration) -> DelayFuture<Self>
fn delay(self, dur: Duration) -> DelayFuture<Self>
Returns a Future that delays execution for a specified time. Read more
sourcefn flatten(self) -> FlattenFuture<Self, <Self::Output as IntoFuture>::Future> where
Self::Output: IntoFuture,
fn flatten(self) -> FlattenFuture<Self, <Self::Output as IntoFuture>::Future> where
Self::Output: IntoFuture,
Flatten out the execution of this future when the result itself can be converted into another future. Read more
sourcefn race<F>(self, other: F) -> Race<Self, F> where
Self: Future,
F: Future<Output = Self::Output>,
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Self: Future,
F: Future<Output = Self::Output>,
Waits for one of two similarly-typed futures to complete. Read more
sourcefn try_race<F, T, E>(self, other: F) -> TryRace<Self, F> where
Self: Future<Output = Result<T, E>>,
F: Future<Output = Self::Output>,
fn try_race<F, T, E>(self, other: F) -> TryRace<Self, F> where
Self: Future<Output = Result<T, E>>,
F: Future<Output = Self::Output>,
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Self: Future,
F: Future,
fn join<F>(self, other: F) -> Join<Self, F> where
Self: Future,
F: Future,
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sourceimpl<F> FutureExt for F where
F: Future + ?Sized,
impl<F> FutureExt for F where
F: Future + ?Sized,
sourcefn poll(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
fn poll(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
A convenience for calling Future::poll() on !Unpin types.
sourcefn or<F>(self, other: F) -> Or<Self, F> where
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sourcefn race<F>(self, other: F) -> Race<Self, F> where
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F: Future<Output = Self::Output>,
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sourcefn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
Catches panics while polling the future. Read more
sourceimpl<F> IntoFuture for F where
F: Future,
impl<F> IntoFuture for F where
F: Future,
type Output = <F as Future>::Output
type Output = <F as Future>::Output
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Which kind of future are we turning this into?
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sourcefn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
sourcefn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
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F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
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E: FnOnce(Self::Error) -> T,
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Fut: TryFuture<Error = Self::Error>,
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sourcefn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
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sourcefn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
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<Self::Ok as TryFuture>::Error == Self::Error,
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sourcefn try_flatten_stream(self) -> TryFlattenStream<Self> where
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<Self::Ok as TryStream>::Error == Self::Error,
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