Struct relay_system::BroadcastResponse

pub struct BroadcastResponse<T>(/* private fields */)
where
    T: Clone;

Variation of AsyncResponse that efficiently broadcasts responses to many requests.

This response behavior is useful for services that cache or debounce requests. Instead of responding to each equivalent request via its individual sender, the broadcast behavior allows to create a BroadcastChannel that efficiently resolves all pending requests once the value is ready.

Similar to AsyncResponse, the service receives a sender that it can use to send a value directly back to the waiting request. Additionally, the sender can be converted into a channel or attached to an already existing channel, if the service expects more requests while computing the response.

See FromMessage and Service for implementation advice and examples.

Trait Implementations

impl<T: Clone> Debug for BroadcastResponse<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Clone> MessageResponse for BroadcastResponse<T>

type Sender = BroadcastSender<T>

Sends responses from the service back to the waiting recipient.

type Output = BroadcastRequest<T>

The type returned from Addr::send.

fn channel() -> (Self::Sender, Self::Output)

Returns the response channel for an interface message.