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ConsumerGroup

Struct ConsumerGroup 

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pub struct ConsumerGroup {
    pub last_delivered_id: StreamId,
    pub pel: BTreeMap<StreamId, PelEntry>,
    pub consumers: KevyMap<SmallBytes, Box<ConsumerState>>,
}
Expand description

One consumer group’s state. Sorted PEL plus a map of known consumers (with cached pel_count for O(1) XINFO answers).

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§last_delivered_id: StreamId

Highest ID delivered to any consumer in this group. Bumped by XREADGROUP with >; settable via XGROUP SETID.

§pel: BTreeMap<StreamId, PelEntry>

Pending-Entries List: every ID delivered but not yet ACKed. Sorted by ID for XPENDING start end range queries.

§consumers: KevyMap<SmallBytes, Box<ConsumerState>>

Consumers known to this group (by name).

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impl ConsumerGroup

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pub fn last_delivered_id(&self) -> StreamId

Highest ID delivered by this group — for XINFO GROUPS.

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pub fn pending_count(&self) -> usize

Total pending entries — XINFO GROUPS’s pending.

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pub fn consumer_count(&self) -> usize

Known consumer count — XINFO GROUPS’s consumers.

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pub fn consumers_iter(&self) -> impl Iterator<Item = (&[u8], &ConsumerState)>

Iterate (consumer_name, consumer) pairs — XINFO CONSUMERS.

Trait Implementations§

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impl Clone for ConsumerGroup

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fn clone(&self) -> ConsumerGroup

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 Default for ConsumerGroup

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait 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> 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.