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 [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
impl<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,
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>;
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>;
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>;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
impl<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.
pub fn poll(
self: Pin<&mut LookupIpFuture<C, E>>,
cx: &mut Context<'_>
) -> Poll<<LookupIpFuture<C, E> as Future>::Output>
pub 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
Mutably borrows from an owned value. Read more
Map this future’s output to a different type, returning a new future of the resulting type. Read more
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the future to the provided closure f. Read more
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of that Either. Read more
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of that Either. Read more
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Flatten the execution of this future when the output of this future is itself another future. Read more
Flatten the execution of this future when the successful result of this future is a stream. Read more
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
FusedFuture. Read more
Do something with the output of a future before passing it on. Read more
Catches unwinding panics while polling the future. Read more
Create a cloneable handle to this future where all handles will resolve to the same result. Read more
Wrap the future in a Box, pinning it. Read more
Wrap the future in a Box, pinning it. Read more
Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = ()>. Read more
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TryFuture<Ok = T, Error = Never>. Read more
A convenience for calling Future::poll on Unpin future types.
Evaluates and consumes the future, returning the resulting output if
the future is ready after the first call to Future::poll. Read more
A convenience for calling Future::poll() on !Unpin types.
Returns the result of self or other future, preferring self if both are ready. Read more
Returns the result of self or other future, with no preference if both are ready. Read more
fn 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
Boxes the future and changes its type to dyn Future + Send + 'a. Read more
into_future)The output that the future will produce on completion.
type Future = F
type Future = F
into_future)Which kind of future are we turning this into?
into_future)Creates a future from a value.
Maps this future’s success value to a different value. Read more
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
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
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
Maps this future’s success value to a different value, and permits for error handling resulting in the same type. Read more
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Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more
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Do something with the success value of a future before passing it on. Read more
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fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is another future. Read more
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is a stream. Read more