Struct mz_persist_client::cache::LockingTypedState

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pub(crate) struct LockingTypedState<K, V, T, D> {
    shard_id: ShardId,
    state: RwLock<TypedState<K, V, T, D>>,
    notifier: StateWatchNotifier,
    cfg: Arc<PersistConfig>,
    metrics: Arc<Metrics>,
    shard_metrics: Arc<ShardMetrics>,
    schema_cache: Arc<dyn Any + Send + Sync>,
    _subscription_token: Arc<ShardSubscriptionToken>,
}
Expand description

A locked decorator for TypedState that abstracts out the specific lock implementation used. Guards the private lock with public accessor fns to make locking scopes more explicit and simpler to reason about.

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§shard_id: ShardId§state: RwLock<TypedState<K, V, T, D>>§notifier: StateWatchNotifier§cfg: Arc<PersistConfig>§metrics: Arc<Metrics>§shard_metrics: Arc<ShardMetrics>§schema_cache: Arc<dyn Any + Send + Sync>

A SchemaCacheMaps<K, V>, but stored as an Any so the : Codec bounds don’t propagate to basically every struct in persist.

§_subscription_token: Arc<ShardSubscriptionToken>

Implementations§

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impl<K: Codec, V: Codec, T, D> LockingTypedState<K, V, T, D>

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fn new( shard_id: ShardId, initial_state: TypedState<K, V, T, D>, metrics: Arc<Metrics>, cfg: Arc<PersistConfig>, subscription_token: Arc<ShardSubscriptionToken>, diagnostics: &Diagnostics, ) -> Self

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pub(crate) fn schema_cache(&self) -> Arc<SchemaCacheMaps<K, V>>

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impl<K, V, T, D> LockingTypedState<K, V, T, D>

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pub(crate) fn shard_id(&self) -> &ShardId

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pub(crate) fn read_lock<R, F: FnMut(&TypedState<K, V, T, D>) -> R>( &self, metrics: &LockMetrics, f: F, ) -> R

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pub(crate) fn write_lock<R, F: FnOnce(&mut TypedState<K, V, T, D>) -> R>( &self, metrics: &LockMetrics, f: F, ) -> R

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pub(crate) fn notifier(&self) -> &StateWatchNotifier

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impl<K, V, T: Debug, D> Debug for LockingTypedState<K, V, T, D>

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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<K, V, T, D> DynState for LockingTypedState<K, V, T, D>
where K: Codec, V: Codec, T: Timestamp + Lattice + Codec64, D: Codec64,

Auto Trait Implementations§

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impl<K, V, T, D> !Freeze for LockingTypedState<K, V, T, D>

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impl<K, V, T, D> !RefUnwindSafe for LockingTypedState<K, V, T, D>

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impl<K, V, T, D> Send for LockingTypedState<K, V, T, D>
where T: Send + Sync,

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impl<K, V, T, D> Sync for LockingTypedState<K, V, T, D>
where T: Send + Sync,

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impl<K, V, T, D> Unpin for LockingTypedState<K, V, T, D>
where T: Unpin,

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impl<K, V, T, D> !UnwindSafe for LockingTypedState<K, V, T, D>

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, U> CastInto<U> for T
where U: CastFrom<T>,

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fn cast_into(self) -> U

Performs the cast.
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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> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
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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> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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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

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<P, R> ProtoType<R> for P
where R: RustType<P>,

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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<'a, S, T> Semigroup<&'a S> for T
where T: Semigroup<S>,

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fn plus_equals(&mut self, rhs: &&'a S)

The method of std::ops::AddAssign, for types that do not implement AddAssign.
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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