pub trait Message: Send + 'static {
type Result: Send + 'static;
}Expand description
A message that can be sent to an actor.
Each message type defines its expected reply type via Result.
The #[protocol] macro generates Message implementations automatically.
For standalone messages without a protocol, implement this trait manually:
ⓘ
struct GetCount;
impl Message for GetCount {
type Result = u64;
}