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Message

Struct Message 

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pub struct Message<T: Actor> { /* private fields */ }
Expand description

Internal channel envelope wrapping the user’s <T as Actor>::Message plus an optional oneshot reply channel.

Users never construct this directly — send / send_and_recv wrap the user’s message into a Message<T> before pushing it onto the mailbox channel. Exposed so advanced callers can drive the mailbox directly via handler_tx. (Not in the prelude — the name is too close to Self::Message and would shadow user types.)

Clone is implemented but drops result_tx on the clone (you can’t clone a oneshot sender). Clones therefore become fire-and-forget envelopes regardless of the original’s reply channel.

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impl<T> Message<T>
where T: Actor,

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pub fn new( inner: Arc<<T as Actor>::Message>, result_tx: Option<Sender<<T as Actor>::Result>>, ) -> Self

Build an envelope. result_tx = Some(_) makes the send wait for a reply (send_and_recv flow); None is fire-and-forget (send).

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pub fn inner(&self) -> Arc<<T as Actor>::Message>

Clone-out the inner payload Arc for the receiving handler. The envelope keeps its own reference until dropped.

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pub fn result_tx(&mut self) -> Option<Sender<<T as Actor>::Result>>

Take the reply channel (if any), leaving None behind. The actor loop calls this once after handle produces its Ok result and uses the returned Sender to deliver the reply.

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impl<T> Clone for Message<T>
where T: Actor,

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug + Actor> Debug for Message<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> !RefUnwindSafe for Message<T>

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impl<T> !UnwindSafe for Message<T>

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impl<T> Freeze for Message<T>

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impl<T> Send for Message<T>

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impl<T> Sync for Message<T>

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impl<T> Unpin for Message<T>

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impl<T> UnsafeUnpin for Message<T>

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, 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> MaybeCodec for T
where T: ?Sized,

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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.