cuprate_database_service

Struct DatabaseWriteHandle

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pub struct DatabaseWriteHandle<Req, Res> { /* private fields */ }
Expand description

Write handle to the database.

This is handle that allows asynchronously writing to the database.

Calling tower::Service::call with a DatabaseWriteHandle will return an asynchronous channel that can be .awaited upon to receive the corresponding response.

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impl<Req, Res> DatabaseWriteHandle<Req, Res>
where Req: Send + 'static, Res: Debug + Send + 'static,

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pub fn init( env: Arc<ConcreteEnv>, inner_handler: impl Fn(&ConcreteEnv, &Req) -> Result<Res, RuntimeError> + Send + 'static, ) -> Self

Initialize the single DatabaseWriter thread.

Trait Implementations§

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impl<Req, Res> Clone for DatabaseWriteHandle<Req, Res>

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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<Req: Debug, Res: Debug> Debug for DatabaseWriteHandle<Req, Res>

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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<Req, Res> Service<Req> for DatabaseWriteHandle<Req, Res>

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type Response = Res

Responses given by the service.
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type Error = RuntimeError

Errors produced by the service.
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type Future = InfallibleOneshotReceiver<Result<Res, RuntimeError>>

The future response value.
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fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests. Read more
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fn call(&mut self, request: Req) -> Self::Future

Process the request and return the response asynchronously. Read more

Auto Trait Implementations§

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impl<Req, Res> Freeze for DatabaseWriteHandle<Req, Res>

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impl<Req, Res> RefUnwindSafe for DatabaseWriteHandle<Req, Res>

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impl<Req, Res> Send for DatabaseWriteHandle<Req, Res>
where Req: Send, Res: Send,

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impl<Req, Res> Sync for DatabaseWriteHandle<Req, Res>
where Req: Send, Res: Send,

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impl<Req, Res> Unpin for DatabaseWriteHandle<Req, Res>

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impl<Req, Res> UnwindSafe for DatabaseWriteHandle<Req, Res>

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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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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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fn conv<T>(self) -> T
where Self: Into<T>,

Converts self into T using Into<T>. Read more
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impl<T> FmtForward for T

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where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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where Self: Display,

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where Self: LowerExp,

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where Self: LowerHex,

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where Self: Octal,

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where Self: Pointer,

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where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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where Self: UpperHex,

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where &'a Self: for<'a> IntoIterator,

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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>

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where U: From<T>,

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where F: FnOnce(&Self) -> bool,

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impl<M, S, Target, Request> MakeService<Target, Request> for M
where M: Service<Target, Response = S>, S: Service<Request>,

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type Response = <S as Service<Request>>::Response

Responses given by the service
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type Error = <S as Service<Request>>::Error

Errors produced by the service
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type Service = S

The Service value created by this factory
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type MakeError = <M as Service<Target>>::Error

Errors produced while building a service.
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type Future = <M as Service<Target>>::Future

The future of the Service instance.
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fn poll_ready( &mut self, cx: &mut Context<'_>, ) -> Poll<Result<(), <M as MakeService<Target, Request>>::MakeError>>

Returns Poll::Ready when the factory is able to create more services. Read more
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fn make_service( &mut self, target: Target, ) -> <M as MakeService<Target, Request>>::Future

Create and return a new service value asynchronously.
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where Self: Sized,

Consume this MakeService and convert it into a Service. Read more
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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
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where R: 'a,

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where R: 'a,

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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

Borrows self, then passes self.deref() into the pipe function.
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fn pipe_deref_mut<'a, T, R>( &'a mut self, func: impl FnOnce(&'a mut T) -> R, ) -> R
where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

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const ALIGN: usize = _

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type Init = T

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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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type Output = T

Should always be Self
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impl<T, Request> ServiceExt<Request> for T
where T: Service<Request> + ?Sized,

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fn ready(&mut self) -> Ready<'_, Self, Request>
where Self: Sized,

Yields a mutable reference to the service when it is ready to accept a request.
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fn ready_oneshot(self) -> ReadyOneshot<Self, Request>
where Self: Sized,

Yields the service when it is ready to accept a request.
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fn oneshot(self, req: Request) -> Oneshot<Self, Request>
where Self: Sized,

Consume this Service, calling it with the provided request once it is ready.
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fn call_all<S>(self, reqs: S) -> CallAll<Self, S>
where Self: Sized, S: Stream<Item = Request>,

Process all requests from the given Stream, and produce a Stream of their responses. Read more
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fn and_then<F>(self, f: F) -> AndThen<Self, F>
where Self: Sized, F: Clone,

Executes a new future after this service’s future resolves. This does not alter the behaviour of the poll_ready method. Read more
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fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F>
where Self: Sized, F: FnOnce(Self::Response) -> Response + Clone,

Maps this service’s response value to a different value. This does not alter the behaviour of the poll_ready method. Read more
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fn map_err<F, Error>(self, f: F) -> MapErr<Self, F>
where Self: Sized, F: FnOnce(Self::Error) -> Error + Clone,

Maps this service’s error value to a different value. This does not alter the behaviour of the poll_ready method. Read more
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fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F>
where Self: Sized, Error: From<Self::Error>, F: FnOnce(Result<Self::Response, Self::Error>) -> Result<Response, Error> + Clone,

Maps this service’s result type (Result<Self::Response, Self::Error>) to a different value, regardless of whether the future succeeds or fails. Read more
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fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F>
where Self: Sized, F: FnMut(NewRequest) -> Request,

Composes a function in front of the service. Read more
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fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F>
where Self: Sized, Error: From<Self::Error>, F: FnOnce(Result<Self::Response, Self::Error>) -> Fut + Clone, Fut: Future<Output = Result<Response, Error>>,

Composes an asynchronous function after this service. Read more
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fn map_future<F, Fut, Response, Error>(self, f: F) -> MapFuture<Self, F>
where Self: Sized, F: FnMut(Self::Future) -> Fut, Error: From<Self::Error>, Fut: Future<Output = Result<Response, Error>>,

Composes a function that transforms futures produced by the service. Read more
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fn boxed(self) -> BoxService<Request, Self::Response, Self::Error>
where Self: Sized + Send + 'static, Self::Future: Send + 'static,

Convert the service into a Service + Send trait object. Read more
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fn boxed_clone(self) -> BoxCloneService<Request, Self::Response, Self::Error>
where Self: Sized + Clone + Send + 'static, Self::Future: Send + 'static,

Convert the service into a Service + Clone + Send trait object. Read more
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fn tap(self, func: impl FnOnce(&Self)) -> Self

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where Self: AsMut<R>, R: ?Sized,

Mutable access to the AsMut<R> view of a value. Read more
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where Self: Deref<Target = T>, T: ?Sized,

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Calls .tap() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes