Struct cuprate_blockchain::service::DatabaseReadHandle

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pub struct DatabaseReadHandle { /* private fields */ }
Expand description

Read handle to the database.

This is cheaply Cloneable handle that allows asynchronously reading from the database.

Calling tower::Service::call with a DatabaseReadHandle & BCReadRequest will return an asynchronous channel that can be .awaited upon to receive the corresponding BCResponse.

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impl DatabaseReadHandle

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pub const fn env(&self) -> &Arc<ConcreteEnv>

Access to the actual database environment.

§⚠️ Warning

This function gives you access to the actual underlying database connected to by self.

I.e. it allows you to read/write data directly instead of going through a request.

Be warned that using the database directly in this manner has not been tested.

Trait Implementations§

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impl Clone for DatabaseReadHandle

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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 Service<BCReadRequest> for DatabaseReadHandle

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type Response = BCResponse

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<BCResponse, RuntimeError>>

The future response value.
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fn poll_ready(&mut self, cx: &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: BCReadRequest) -> Self::Future

Process the request and return the response asynchronously. Read more

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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: 64 bytes