Trait futures_core::task::Executor[−][src]

pub trait Executor {
    fn spawn_obj(
        &mut self, 
        future: FutureObj<'static, ()>
    ) -> Result<(), SpawnObjError>;

    fn status(&self) -> Result<(), SpawnErrorKind> { ... }
}
🔬 This is a nightly-only experimental API. (futures_api)

futures in libcore are unstable

A task executor.

Futures are polled until completion by tasks, a kind of lightweight "thread". A task executor is responsible for the creation of these tasks and the coordination of their execution on real operating system threads. In particular, whenever a task signals that it can make further progress via a wake-up notification, it is the responsibility of the task executor to put the task into a queue to continue executing it, i.e. polling the future in it, later.

Required Methods

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

futures in libcore are unstable

Spawns a new task with the given future. The future will be polled until completion.

Errors

The executor may be unable to spawn tasks, either because it has been shut down or is resource-constrained.

Provided Methods

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

futures in libcore are unstable

Determines whether the executor is able to spawn new tasks.

Returns

An Ok return means the executor is likely (but not guaranteed) to accept a subsequent spawn attempt. Likewise, an Err return means that spawn is likely, but not guaranteed, to yield an error.

Implementations on Foreign Types

impl<E> Executor for Box<E> where
    E: Executor + ?Sized, 
[src]

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

futures in libcore are unstable

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

futures in libcore are unstable

Implementors