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Diffstat (limited to 'docs/examples/actors/message.scala')
-rw-r--r-- | docs/examples/actors/message.scala | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/docs/examples/actors/message.scala b/docs/examples/actors/message.scala new file mode 100644 index 0000000000..7b0e6387bd --- /dev/null +++ b/docs/examples/actors/message.scala @@ -0,0 +1,35 @@ +package examples.actors + +import scala.actors._; import scala.actors.Actor._ + +object message { + def main(args: Array[String]) = { + val n = try { Integer.parseInt(args(0)) } + catch { + case _ => + scala.Console.println("Usage: examples.actors.Message <n>") + Predef.exit + } + val nActors = 500 + val finalSum = n * nActors + Scheduler.impl = new SingleThreadedScheduler + + def beh(next: Actor, sum: int): unit = + react { + case value: int => + val j = value + 1; val nsum = sum + j + if (next == null && nsum >= finalSum) + Console.println(nsum) + else { + if (next != null) next ! j + beh(next, nsum) + } + } + + def actorChain(i: Int, a: Actor): Actor = + if (i > 0) actorChain(i-1, actor(beh(a, 0))) else a + + val firstActor = actorChain(nActors, null) + var i = n; while (i > 0) { firstActor ! 0; i = i-1 } + } +} |