Struct quinn::generic::Connecting [−][src]
In-progress connection attempt future
Implementations
impl<S> Connecting<S> where
S: Session,
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S: Session,
pub fn into_0rtt(self) -> Result<(NewConnection<S>, ZeroRttAccepted), Self>
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Convert into a 0-RTT or 0.5-RTT connection at the cost of weakened security
Opens up the connection for use before the handshake finishes, allowing the API user to send data with 0-RTT encryption if the necessary key material is available. This is useful for reducing start-up latency by beginning transmission of application data without waiting for the handshake’s cryptographic security guarantees to be established.
When the ZeroRttAccepted
future completes, the connection has been fully established.
Security
On outgoing connections, this enables transmission of 0-RTT data, which might be vulnerable to replay attacks, and should therefore never invoke non-idempotent operations.
On incoming connections, this enables transmission of 0.5-RTT data, which might be intercepted by a man-in-the-middle. If this occurs, the handshake will not complete successfully.
Errors
Outgoing connections are only 0-RTT-capable when a cryptographic session ticket cached from
a previous connection to the same server is available, and includes a 0-RTT key. If no such
ticket is found, self
is returned unmodified.
For incoming connections, a 0.5-RTT connection will always be successfully constructed.
pub fn authentication_data(&self) -> S::AuthenticationData
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Data conveyed by the peer during the handshake, including cryptographic identity
Since the handshake is incomplete at this point, the returned data is likely to be incomplete as well.
impl<S> Connecting<S> where
S: Session,
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S: Session,
pub fn remote_address(&self) -> SocketAddr
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The peer’s UDP address.
Will panic if called after poll
has returned Ready
.
Trait Implementations
impl<S: Debug> Debug for Connecting<S> where
S: Session,
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S: Session,
impl<S> Future for Connecting<S> where
S: Session,
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S: Session,
Auto Trait Implementations
impl<S> !RefUnwindSafe for Connecting<S>
impl<S> Send for Connecting<S>
impl<S> Sync for Connecting<S>
impl<S> Unpin for Connecting<S>
impl<S> !UnwindSafe for Connecting<S>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T> FutureExt for T where
T: Future + ?Sized,
T: Future + ?Sized,
pub fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
F: FnOnce(Self::Output) -> U,
pub fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
Self::Output: Into<U>,
pub fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
Fut: Future,
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
F: FnOnce(Self::Output) -> Fut,
pub fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
B: Future<Output = Self::Output>,
pub fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
A: Future<Output = Self::Output>,
pub fn into_stream(self) -> IntoStream<Self>
pub fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
Self::Output: Future,
pub fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
Self::Output: Stream,
pub fn fuse(self) -> Fuse<Self>
pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
F: FnOnce(&Self::Output),
pub fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
Self: UnwindSafe,
pub fn shared(self) -> Shared<Self> where
Self::Output: Clone,
Self::Output: Clone,
pub fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
pub fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a,
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a,
pub fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
pub fn unit_error(self) -> UnitError<Self>
pub fn never_error(self) -> NeverError<Self>
pub fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
Self: Unpin,
pub fn now_or_never(self) -> Option<Self::Output>
impl<T> Instrument for T
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pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<F> IntoFuture for F where
F: Future,
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F: Future,
type Output = <F as Future>::Output
into_future
)The output that the future will produce on completion.
type Future = F
into_future
)Which kind of future are we turning this into?
pub fn into_future(self) -> <F as IntoFuture>::Future
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized,
F: Future<Output = Result<T, E>> + ?Sized,
type Ok = T
The type of successful values yielded by this future
type Error = E
The type of failures yielded by this future
pub fn try_poll(
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
Fut: TryFuture + ?Sized,
pub fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
pub fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
F: FnOnce(Self::Ok) -> T,
pub fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
pub fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
F: FnOnce(Self::Error) -> E,
pub fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,
Self::Error: Into<E>,
pub fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>,
Self::Ok: Into<U>,
pub fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
Fut: TryFuture<Error = Self::Error>,
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
F: FnOnce(Self::Ok) -> Fut,
pub fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
Fut: TryFuture<Ok = Self::Ok>,
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
F: FnOnce(Self::Error) -> Fut,
pub fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),
F: FnOnce(&Self::Ok),
pub fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
F: FnOnce(&Self::Error),
pub fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
pub fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
pub fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
F: FnOnce(Self::Error) -> Self::Ok,
F: FnOnce(Self::Error) -> Self::Ok,
pub fn into_future(self) -> IntoFuture<Self>
pub fn try_poll_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,