Trait penumbra_proto::StateReadProto

pub trait StateReadProto: StateRead + Send + Sync {
    fn get<D>(
        &self,
        key: &str
    ) -> Pin<Box<dyn Future<Output = Result<Option<D>>> + Send + 'static>>
    where
        D: DomainType + Debug,
        <D as TryFrom<D::Proto>>::Error: Into<Error> + Send + Sync + 'static,
    { ... }
    fn get_proto<P>(
        &self,
        key: &str
    ) -> Pin<Box<dyn Future<Output = Result<Option<P>>> + Send + 'static>>
    where
        P: Message + Default + Debug,
    { ... }
    fn prefix<'a, D>(
        &'a self,
        prefix: &'a str
    ) -> Pin<Box<dyn Stream<Item = Result<(String, D)>> + Send + 'a>>
    where
        D: DomainType,
        <D as TryFrom<D::Proto>>::Error: Into<Error> + Send + Sync + 'static,
    { ... }
    fn prefix_proto<'a, P>(
        &'a self,
        prefix: &'a str
    ) -> Pin<Box<dyn Stream<Item = Result<(String, P)>> + Send + 'a>>
    where
        P: Message + Default,
    { ... }
}

Provided Methods

fn get<D>(
    &self,
    key: &str
) -> Pin<Box<dyn Future<Output = Result<Option<D>>> + Send + 'static>>where
    D: DomainType + Debug,
    <D as TryFrom<D::Proto>>::Error: Into<Error> + Send + Sync + 'static,

Gets a value from the verifiable key-value store as a domain type.

Returns

• Ok(Some(v)) if the value is present and parseable as a domain type D;
• Ok(None) if the value is missing;
• Err(_) if the value is present but not parseable as a domain type D, or if an underlying storage error occurred.

fn get_proto<P>(
    &self,
    key: &str
) -> Pin<Box<dyn Future<Output = Result<Option<P>>> + Send + 'static>>where
    P: Message + Default + Debug,

Gets a value from the verifiable key-value store as a proto type.

Returns

• Ok(Some(v)) if the value is present and parseable as a proto type P;
• Ok(None) if the value is missing;
• Err(_) if the value is present but not parseable as a proto type P, or if an underlying storage error occurred.

fn prefix<'a, D>(
    &'a self,
    prefix: &'a str
) -> Pin<Box<dyn Stream<Item = Result<(String, D)>> + Send + 'a>>where
    D: DomainType,
    <D as TryFrom<D::Proto>>::Error: Into<Error> + Send + Sync + 'static,

Retrieve all values for keys matching a prefix from consensus-critical state, as domain types.

fn prefix_proto<'a, P>(
    &'a self,
    prefix: &'a str
) -> Pin<Box<dyn Stream<Item = Result<(String, P)>> + Send + 'a>>where
    P: Message + Default,

Retrieve all values for keys matching a prefix from the verifiable key-value store, as proto types.

Implementors

impl<T: StateRead + ?Sized> StateReadProto for T