patterns
Patterns for working with streambed.
Ask Pattern
The ask pattern is based on the concept of the same name from Akka.
It encodes async request-reply semantics which can be used, for example, to perform request-reply operations across a tokio::sync::mpsc::channel
or
similar. The provided implementation sends a message using a tokio::sync::mpsc::Sender<_>
and uses a tokio::sync::oneshot
channel internally to convey the
response.