Struct futures_util::try_future::TryJoin4

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#[must_use = "futures do nothing unless polled"]
pub struct TryJoin4<Fut1: TryFuture, Fut2: TryFuture, Fut3: TryFuture, Fut4: TryFuture> { /* fields omitted */ }

[−] Expand description

Future for the try_join4 combinator, waiting for four futures to complete or for one to error.

This is created by the TryFuture::try_join4 method.

Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> Debug for TryJoin4<Fut1, Fut2, Fut3, Fut4> where     Fut1: TryFuture + Debug,     Fut1::Ok: Debug,     Fut1::Error: Debug,     Fut2: TryFuture + Debug,     Fut2::Ok: Debug,     Fut2::Error: Debug,     Fut3: TryFuture + Debug,     Fut3::Ok: Debug,     Fut3::Error: Debug,     Fut4: TryFuture + Debug,     Fut4::Ok: Debug,     Fut4::Error: Debug,

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fn fmt(&self, fmt: &mut Formatter) -> Result

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Formats the value using the given formatter.

impl<Fut1, Fut2, Fut3, Fut4> Future for TryJoin4<Fut1, Fut2, Fut3, Fut4> where     Fut1: TryFuture,     Fut2: TryFuture<Error = Fut1::Error>,     Fut3: TryFuture<Error = Fut1::Error>,     Fut4: TryFuture<Error = Fut1::Error>,

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type Output = Result<(Fut1::Ok, Fut2::Ok, Fut3::Ok, Fut4::Ok), Fut1::Error>

🔬 This is a nightly-only experimental API. (futures_api)

futures in libcore are unstable

The result of the Future.

fn poll(self: PinMut<Self>, cx: &mut Context) -> Poll<Self::Output>

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🔬 This is a nightly-only experimental API. (futures_api)

futures in libcore are unstable

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.