Struct MemoryCache

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pub struct MemoryCache<T> { /* private fields */ }

Expand description

An in-memory cache.

It can cause deadlocks when keys are put into the same shards.

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impl<T> MemoryCache<T>

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pub fn new(capacity: usize) -> Self

Creates an in-memory cache.

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impl<T: Clone + Send + Sync> GlobalCache<T> for MemoryCache<T>

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fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<T>, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Returns a value.

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fn set<'life0, 'async_trait>( &'life0 self, key: String, value: T, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Sets a value.

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fn remove<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Removes a key.

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impl<T: Clone + Send + Sync> LocalCache<T> for MemoryCache<T>

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fn get_with<'a, 'life0, 'async_trait>( &'life0 self, key: String, future: Box<dyn Future<Output = T> + Send + 'a>, ) -> Pin<Box<dyn Future<Output = Result<T, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'a: 'async_trait, 'life0: 'async_trait,

Returns a value.

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impl<T> UnwindSafe for MemoryCache<T>
where T: UnwindSafe,

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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> 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 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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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<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more

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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more

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impl<T, U> TryFrom 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>::Error>

Performs the conversion.

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impl<T, U> TryInto for T
where U: TryFrom<T>,

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type Error = >::Error

The type returned in the event of a conversion error.

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fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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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

MemoryCache

Struct MemoryCache Copy item path

Implementations§

impl<T> MemoryCache<T>

pub fn new(capacity: usize) -> Self

Trait Implementations§

impl<T: Clone + Send + Sync> GlobalCache<T> for MemoryCache<T>

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<T>, CacheError>> + Send + 'async_trait>>where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn set<'life0, 'async_trait>( &'life0 self, key: String, value: T, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>where Self: 'async_trait, 'life0: 'async_trait,

fn remove<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

impl<T: Clone + Send + Sync> LocalCache<T> for MemoryCache<T>

fn get_with<'a, 'life0, 'async_trait>( &'life0 self, key: String, future: Box<dyn Future<Output = T> + Send + 'a>, ) -> Pin<Box<dyn Future<Output = Result<T, CacheError>> + Send + 'async_trait>>where Self: 'async_trait, 'a: 'async_trait, 'life0: 'async_trait,

Auto Trait Implementations§

impl<T> !Freeze for MemoryCache<T>

impl<T> RefUnwindSafe for MemoryCache<T>

impl<T> Send for MemoryCache<T>where T: Send,

impl<T> Sync for MemoryCache<T>where T: Send + Sync,

impl<T> Unpin for MemoryCache<T>

impl<T> UnsafeUnpin for MemoryCache<T>

impl<T> UnwindSafe for MemoryCache<T>where T: UnwindSafe,

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>where F: FnOnce(&Self) -> bool,

impl<T> Pointable for T

const ALIGN: usize

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T> PolicyExt for Twhere T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> WithSubscriber for T

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

fn with_current_subscriber(self) -> WithDispatch<Self>

Struct MemoryCache

fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<T>, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn set<'life0, 'async_trait>( &'life0 self, key: String, value: T, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

fn remove<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

fn get_with<'a, 'life0, 'async_trait>( &'life0 self, key: String, future: Box<dyn Future<Output = T> + Send + 'a>, ) -> Pin<Box<dyn Future<Output = Result<T, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'a: 'async_trait, 'life0: 'async_trait,

impl<T> Send for MemoryCache<T>
where T: Send,

impl<T> Sync for MemoryCache<T>
where T: Send + Sync,

impl<T> UnwindSafe for MemoryCache<T>
where T: UnwindSafe,

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<T, U> Into<U> for T
where U: From<T>,

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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