Added actors library.

1 files changed, 60 insertions, 0 deletions

diff --git a/docs/examples/actors/counter.scala b/docs/examples/actors/counter.scala
new file mode 100644
index 0000000000..8578199bf5
--- /dev/null
+++ b/docs/examples/actors/counter.scala
@@ -0,0 +1,60 @@
+
+import scala.actors.multi.Pid
+import actors.distributed.RemoteActor
+import actors.distributed.TCP
+import actors.distributed.TcpNode
+import actors.distributed.TcpService
+
+abstract class CounterMessage
+case class Incr() extends CounterMessage
+case class Value(p: Pid) extends CounterMessage
+case class Result(v: int) extends CounterMessage
+
+class Counter extends RemoteActor {
+  override def run(): unit =
+    loop(0)
+
+  def loop(value: int): unit = {
+    Console.println("Value: " + value)
+    receive {
+      case Incr() =>
+        loop(value + 1)
+      case Value(p) =>
+        p ! Result(value)
+        loop(value)
+      case other =>
+        loop(value)
+    }
+  }
+}
+
+class CounterUser extends RemoteActor {
+  override def run(): unit = {
+    alive(TCP())
+
+    spawn(TcpNode("127.0.0.1", 9090), "Counter")
+
+    receive {
+      case p: Pid =>
+        // communicate with counter
+        Console.println("" + node + ": Sending Incr() to remote Counter (" + p + ")...")
+        p ! Incr()
+        p ! Incr()
+        p ! Value(self)
+        receive {
+          case Result(v) =>
+            Console.println("Received result: " + v)
+        }
+    }
+  }
+}
+
+object CounterTest {
+  def main(args: Array[String]): unit = {
+    val serv = new TcpService(9090)
+    serv.start()
+
+    val cu = new CounterUser
+    cu.start()
+  }
+}