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Subscriber

Struct Subscriber 

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

A subscriber that receives GameEvent values from an EventBus.

Wraps a tokio::sync::broadcast::Receiver. When the subscriber falls behind (the sender has overwritten messages it hasn’t read), the next call to recv logs a warning and skips ahead to the oldest available message.

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impl Subscriber

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pub async fn recv(&mut self) -> Option<GameEvent>

Receives the next GameEvent, waiting asynchronously.

If the subscriber has fallen behind, the lagged messages are skipped, a warning is logged, and the next available event is returned.

Returns None if the sender (event bus) has been dropped and there are no more buffered messages.

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impl Debug for Subscriber

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

Formats the value using the given formatter. Read more

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

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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> Same for T

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type Output = T

Should always be Self
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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.