Struct futures::future::Join4

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#[must_use = "futures do nothing unless polled"]
pub struct Join4<Fut1, Fut2, Fut3, Fut4> where
    Fut1: Future,
    Fut2: Future,
    Fut3: Future,
    Fut4: Future,  { /* fields omitted */ }

[−] Expand description

Future for the join4 combinator, waiting for four futures to complete.

This is created by the Future::join4 method.

Trait Implementations

impl<Fut1, Fut2, Fut3, Fut4> Debug for Join4<Fut1, Fut2, Fut3, Fut4> where     Fut1: Future + Debug,     Fut2: Future + Debug,     Fut3: Future + Debug,     Fut4: Future + Debug,     <Fut1 as Future>::Output: Debug,     <Fut2 as Future>::Output: Debug,     <Fut3 as Future>::Output: Debug,     <Fut4 as Future>::Output: Debug,

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

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Formats the value using the given formatter.

impl<Fut1, Fut2, Fut3, Fut4> Future for Join4<Fut1, Fut2, Fut3, Fut4> where     Fut1: Future,     Fut2: Future,     Fut3: Future,     Fut4: Future,

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type Output = (<Fut1 as Future>::Output, <Fut2 as Future>::Output, <Fut3 as Future>::Output, <Fut4 as Future>::Output)

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

futures in libcore are unstable

The result of the Future.

fn poll(     self: PinMut<Join4<Fut1, Fut2, Fut3, Fut4>>,     cx: &mut Context ) -> Poll<<Join4<Fut1, Fut2, Fut3, Fut4> as Future>::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.