detect_stall

Struct WeakControlHandle

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pub struct WeakControlHandle<RS> { /* private fields */ }

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impl<RS> WeakControlHandle<RS>
where RS: RequestStream,

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pub fn use_control_handle<User, R>(&self, user: User) -> Option<R>
where User: FnOnce(RS::ControlHandle) -> R,

If the server endpoint is not unbound, calls user function with the control handle and propagates the return value. Otherwise, returns None.

Typically you can use it to send an event within the closure:

let control_handle = stream.control_handle();
let result = control_handle.use_control_handle(
    |control_handle| control_handle.send_my_event());

Auto Trait Implementations§

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impl<RS> Freeze for WeakControlHandle<RS>

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impl<RS> !RefUnwindSafe for WeakControlHandle<RS>

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impl<RS> Send for WeakControlHandle<RS>
where RS: Send,

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impl<RS> Sync for WeakControlHandle<RS>
where RS: Send,

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impl<RS> Unpin for WeakControlHandle<RS>

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impl<RS> !UnwindSafe for WeakControlHandle<RS>

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

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impl<T, D> Encode<Ambiguous1, D> for T
where D: ResourceDialect,

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. Read more
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impl<T, D> Encode<Ambiguous2, D> for T
where D: ResourceDialect,

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unsafe fn encode( self, _encoder: &mut Encoder<'_, D>, _offset: usize, _depth: Depth, ) -> Result<(), Error>

Encodes the object into the encoder’s buffers. Any handles stored in the object are swapped for Handle::INVALID. 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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

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where 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> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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type Error = Infallible

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where U: TryFrom<T>,

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

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