pub struct Registry { /* private fields */ }
Expand description
Actors registry
Actor can register itself as a service. Service can be defined as
ArbiterService
which is unique per arbiter or SystemService
which is
unique per system.
If arbiter service is used outside of running arbiter, it panics.
Example
use actix::prelude::*;
#[derive(Message)]
struct Ping;
#[derive(Default)]
struct MyActor1;
impl Actor for MyActor1 {
type Context = Context<Self>;
}
impl actix::Supervised for MyActor1 {}
impl ArbiterService for MyActor1 {
fn service_started(&mut self, ctx: &mut Context<Self>) {
println!("Service started");
}
}
impl Handler<Ping> for MyActor1 {
type Result = ();
fn handle(&mut self, _: Ping, ctx: &mut Context<Self>) {
println!("ping");
}
}
struct MyActor2;
impl Actor for MyActor2 {
type Context = Context<Self>;
fn started(&mut self, _: &mut Context<Self>) {
// get MyActor1 addres from the registry
let act = Arbiter::registry().get::<MyActor1>();
act.do_send(Ping);
}
}
fn main() {
// initialize system
let code = System::run(|| {
// Start MyActor1 in new Arbiter
Arbiter::start(|_| {
MyActor2
});
});
}
Implementations§
source§impl Registry
impl Registry
sourcepub fn get<A: ArbiterService + Actor<Context = Context<A>>>(&self) -> Addr<A>
pub fn get<A: ArbiterService + Actor<Context = Context<A>>>(&self) -> Addr<A>
Query registry for specific actor. Returns address of the actor. If actor is not registered, starts new actor and return address of newly created actor.