rama::futures::prelude::future

Struct RemoteHandle

pub struct RemoteHandle<T> { /* private fields */ }
Expand description

The handle to a remote future returned by remote_handle. When you drop this, the remote future will be woken up to be dropped by the executor.

§Unwind safety

When the remote future panics, Remote will catch the unwind and transfer it to the thread where RemoteHandle is being awaited. This is good for the common case where Remote is spawned on a threadpool. It is unlikely that other code in the executor working thread shares mutable data with the spawned future and we preserve the executor from losing its working threads.

If you run the future locally and send the handle of to be awaited elsewhere, you must be careful with regard to unwind safety because the thread in which the future is polled will keep running after the panic and the thread running the RemoteHandle will unwind.

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impl<T> RemoteHandle<T>

pub fn forget(self)

Drops this handle without canceling the underlying future.

This method can be used if you want to drop the handle, but let the execution continue.

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impl<T> Debug for RemoteHandle<T>
where T: Debug,

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

Formats the value using the given formatter. Read more
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impl<T> Future for RemoteHandle<T>
where T: 'static,

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type Output = T

The type of value produced on completion.
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fn poll(self: Pin<&mut RemoteHandle<T>>, cx: &mut Context<'_>) -> Poll<T>

Attempts 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§

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impl<T> Freeze for RemoteHandle<T>

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impl<T> !RefUnwindSafe for RemoteHandle<T>

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impl<T> Send for RemoteHandle<T>
where T: Send,

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impl<T> Sync for RemoteHandle<T>
where T: Send,

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impl<T> Unpin for RemoteHandle<T>

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impl<T> !UnwindSafe for RemoteHandle<T>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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Causes self to use its Binary implementation when Debug-formatted.
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Causes self to use its Display implementation when Debug-formatted.
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Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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Causes self to use its Octal implementation when Debug-formatted.
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Causes self to use its Pointer implementation when Debug-formatted.
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Causes self to use its UpperExp implementation when Debug-formatted.
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Causes self to use its UpperHex implementation when Debug-formatted.
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Flatten the execution of this future when the output of this future is itself another future. Read more
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Flatten the execution of this future when the successful result of this future is a stream. Read more
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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
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Catches unwinding panics while polling the future. Read more
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Create a cloneable handle to this future where all handles will resolve to the same result. Read more
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fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
where Self: Sized,

Turn this future into a future that yields () on completion and sends its output to another future on a separate task. Read more
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