# [−][src]Module alloc::task

🔬 This is a nightly-only experimental API. (`futures_api` #50547)

futures in libcore are unstable

Types and Traits for working with asynchronous tasks.

## Structs

Context | [ Experimental ] Information about the currently-running task.
LocalWaker | [ Experimental ] A `LocalWaker` is a handle for waking up a task by notifying its executor that it is ready to be run.
SpawnErrorKind | [ Experimental ] Provides the reason that an executor was unable to spawn.
SpawnLocalObjError | [ Experimental ] The result of a failed spawn
SpawnObjError | [ Experimental ] The result of a failed spawn
Waker | [ Experimental ] A `Waker` is a handle for waking up a task by notifying its executor that it is ready to be run.

## Enums

Poll | [ Experimental ] Indicates whether a value is available or if the current task has been scheduled to receive a wakeup instead.

## Traits

Spawn | [ Experimental ] Spawns tasks that poll futures to completion onto its associated task executor.
UnsafeWake | [ Experimental ] An unsafe trait for implementing custom memory management for a `Waker` or `LocalWaker`.
Wake | [ Experimental ] A way of waking up a specific task.

## Functions

local_waker⚠ | [ Experimental ] Creates a `LocalWaker` from a local `wake`.
local_waker_from_nonlocal | [ Experimental ] Creates a `LocalWaker` from a non-local `wake`.

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