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ActorRef

Struct ActorRef 

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pub struct ActorRef<A>
where A: Actor + Handler<A>,
{ /* private fields */ }
Expand description

Typed, cloneable handle to a running actor.

Use this to send messages with ask, subscribe to events with subscribe, or stop the actor with ask_stop or tell_stop. Cloning an ActorRef is cheap — all clones share the same underlying channels.

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impl<A> ActorRef<A>
where A: Actor + Handler<A>,

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pub const fn new( path: ActorPath, sender: HandleHelper<A>, stop_sender: Sender<Option<Sender<()>>>, event_receiver: EventReceiver<<A as Actor>::Event>, ) -> Self

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pub async fn tell(&self, message: A::Message) -> Result<(), Error>

Sends a message to the actor without waiting for a response (fire-and-forget).

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pub async fn ask(&self, message: A::Message) -> Result<A::Response, Error>

Sends message to the actor and waits for a response.

Returns the actor’s response on success, or an error if the actor has stopped or the message channel is full.

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pub async fn ask_timeout( &self, message: A::Message, timeout: Duration, ) -> Result<A::Response, Error>

Sends message and waits up to timeout for a response, returning Error::Timeout if the deadline is exceeded.

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pub async fn ask_stop(&self) -> Result<(), Error>

Requests the actor to stop gracefully and waits for it to confirm shutdown.

The actor will finish its current message, run pre_stop and post_stop, and stop its children before terminating. Returns an error if the actor has already stopped.

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pub async fn tell_stop(&self)

Sends a stop signal without waiting for the actor to confirm shutdown (fire-and-forget).

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pub fn path(&self) -> ActorPath

Returns the hierarchical path of this actor.

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pub fn is_closed(&self) -> bool

Returns true if the actor’s mailbox is closed, meaning the actor has stopped.

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pub async fn closed(&self)

Waits until the actor has fully terminated.

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pub fn subscribe(&self) -> EventReceiver<<A as Actor>::Event>

Returns a broadcast receiver for this actor’s events.

Each subscriber receives every future event independently. Use this receiver directly or wrap it in a Sink to process events asynchronously.

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impl<A> Clone for ActorRef<A>
where A: Actor + Handler<A>,

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fn clone(&self) -> Self

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

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<A> Freeze for ActorRef<A>

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impl<A> RefUnwindSafe for ActorRef<A>

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impl<A> Send for ActorRef<A>

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impl<A> Sync for ActorRef<A>

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impl<A> Unpin for ActorRef<A>

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impl<A> UnsafeUnpin for ActorRef<A>

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impl<A> UnwindSafe for ActorRef<A>

Blanket Implementations§

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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

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
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> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where 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 T
where 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 T
where 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.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more