thbar · January 7, 2021 14:56 · Jan 7, 2021 · Jan 7, 2021
diff --git a/gistfile1.txt → main.rs b/gistfile1.txt → main.rs
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,72 @@
+use actix::prelude::*;
+
+/// Define message
+#[derive(Message)]
+#[rtype(result = "Result<String, std::io::Error>")]
+struct WhatsYourName;
+
+#[derive(Message)]
+#[rtype(result = "()")]
+struct SetYourName {
+    name: String,
+}
+
+struct MyActor {
+    name: String,
+}
+
+impl Actor for MyActor {
+    type Context = Context<Self>;
+
+    fn started(&mut self, ctx: &mut Context<Self>) {
+        println!("Actor {} is alive", self.name);
+    }
+}
+
+/// Define handler for `WhatsYourName` message
+impl Handler<WhatsYourName> for MyActor {
+    type Result = Result<String, std::io::Error>;
+
+    fn handle(&mut self, msg: WhatsYourName, ctx: &mut Context<Self>) -> Self::Result {
+        Ok(self.name.clone())
+    }
+}
+
+/// Define handler for `SetYourName` message
+impl Handler<SetYourName> for MyActor {
+    type Result = ();
+
+    fn handle(&mut self, msg: SetYourName, ctx: &mut Context<Self>) -> Self::Result {
+        self.name = msg.name.clone();
+        println!("New name {} is set", msg.name);
+    }
+}
+
+async fn ask_and_print_name(addr: &Addr<MyActor>) {
+    let result = addr.send(WhatsYourName).await;
+
+    match result {
+        Ok(res) => println!("Got result: {}", res.unwrap()),
+        Err(err) => println!("Got error: {}", err),
+    }
+}
+
+#[actix_rt::main]
+async fn main() {
+    // start new actor
+    let addr = MyActor {
+        name: String::from("Francis"),
+    }
+    .start();
+
+    ask_and_print_name(&addr).await;
+    addr.send(SetYourName {
+        name: String::from("John"),
+    })
+    .await;
+    let result = addr.send(WhatsYourName).await;
+    ask_and_print_name(&addr).await;
+
+    // stop system and exit
+    System::current().stop();
+}
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