Question

In another language, I have had something call itself with the new state to maintain it but I don’t see how to do that with scala actors. Something like this is how I would envision this:

def act(state)
  react {
    case blah => act(doSomething(state, blah))
  }
}

Answer 1

Well.. funny thing. I tweak my question a little and find it compiles. I realized that all that happens is that I have to return a partial function. Well I can return a partial function that has a parameter in there, so…

import scala.actors._

object MyActor extends Actor {
  def proc(s: Int) {
    react {
      case input: String =>
        if ((s % 10000) == 0) {
          println(s + ", " + input)
        }
        proc(s + 1)
    }
  }

  def act = proc(0)
}

object TestActors {
  def main(args: Array[String]): Unit = {
    MyActor.start()

    for (s <- 1 to 10000000) {
      MyActor ! "a message"
    }
  }
}

The nice thing is that with a little more tweaking, it could be generalized quite easily.