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package examples.actors
import scala.actors.Actor
import scala.actors.Actor._
case object Ping
case object Pong
case object Stop
/**
* Ping pong example.
*
* @author Philipp Haller
* @version 1.1
*/
object pingpong extends Application {
val pong = new Pong
val ping = new Ping(100000, pong)
ping.start
pong.start
}
class Ping(count: Int, pong: Actor) extends Actor {
def act() {
var pingsLeft = count - 1
pong ! Ping
loop {
react {
case Pong =>
if (pingsLeft % 1000 == 0)
println("Ping: pong")
if (pingsLeft > 0) {
pong ! Ping
pingsLeft -= 1
} else {
println("Ping: stop")
pong ! Stop
exit()
}
}
}
}
}
class Pong extends Actor {
def act() {
var pongCount = 0
loop {
react {
case Ping =>
if (pongCount % 1000 == 0)
println("Pong: ping "+pongCount)
sender ! Pong
pongCount += 1
case Stop =>
println("Pong: stop")
exit()
}
}
}
}
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