pub struct SwapData<T> { /* private fields */ }
Expand description

A wrapper around ArcSwap that can be used as an extractor.

Can serve as a replacement for Data<RwLock<T>> in certain situations.

Currently exposes some internals of arc-swap and may change in the future.

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impl<T> SwapData<T>

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pub fn new(item: T) -> Self

Constructs new swappable data item.

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pub fn load(&self) -> Guard<Arc<T>>

Returns a temporary access guard to the wrapped data item.

Implements Deref for read access to the inner data item.

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pub fn store(&self, item: T)

Replaces the value inside this instance.

Further loads will yield the new value.

Trait Implementations§

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impl<T> Clone for SwapData<T>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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: 'static> FromRequest for SwapData<T>

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type Error = Error

The associated error which can be returned.
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type Future = Ready<Result<SwapData<T>, <SwapData<T> as FromRequest>::Error>>

Future that resolves to a Self. Read more
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fn from_request(req: &HttpRequest, _pl: &mut Payload) -> Self::Future

Create a Self from request parts asynchronously.
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fn extract(req: &HttpRequest) -> Self::Future

Create a Self from request head asynchronously. Read more

Auto Trait Implementations§

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impl<T> RefUnwindSafe for SwapData<T>where T: RefUnwindSafe,

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

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

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impl<T> Unpin for SwapData<T>

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impl<T> UnwindSafe for SwapData<T>where T: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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<U> for Twhere 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<T> for T

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type Output = T

Should always be Self
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impl<T> ToOwned for Twhere 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 Twhere 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 Twhere 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 Twhere 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