pub struct SendSpawner { /* private fields */ }
Expand description

在任意线程中,生成任务到执行器中的句柄

这个生成器可以被任意现场使用(它是 Send 的),但是它只能创建 Send 的任务。 这是因为生成器本质上是将任务 “发送” 给执行器的线程。

如果你线创建 non-Send 的任务,请使用 Spawner.


Handle to spawn tasks into an executor from any thread.

This Spawner can be used from any thread (it is Send), but it can only spawn Send tasks. The reason for this is spawning is effectively “sending” the tasks to the executor thread.

If you want to spawn non-Send tasks, use Spawner.

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impl SendSpawner

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pub async fn for_current_executor() -> Self

从当前执行器中获取生成器

这个函数是 async 的,仅是为了访问当前异步上下文。它会立即返回,不会阻塞。

#异常 如果当前执行器不是的 Embassy 执行器就会发生异常。


Get a Spawner for the current executor.

This function is async just to get access to the current async context. It returns instantly, it does not block/yield.

Panics

Panics if the current executor is not an Embassy executor.

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pub fn spawn<S: Send>(&self, token: SpawnToken<S>) -> Result<(), SpawnError>

创建一个任务到执行器中

你可以调用任务函数来获取token(比如一个被#[embassy_executor::task]标记的函数)


Spawn a task into an executor.

You obtain the token by calling a task function (i.e. one marked with #[embassy_executor::task]).

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pub fn must_spawn<S: Send>(&self, token: SpawnToken<S>)

创建一个任务到执行器中,失败时会发生异常。

异常

如果创建失败就会异常


Spawn a task into an executor, panicking on failure.

Panics

Panics if the spawning fails.

Trait Implementations§

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impl Clone for SendSpawner

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fn clone(&self) -> SendSpawner

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for SendSpawner

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.