--- a/src/Pure/General/event_bus.scala Fri May 07 15:03:57 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-/* Title: Pure/General/event_bus.scala
- Author: Makarius
-
-Generic event bus with multiple receiving actors.
-*/
-
-package isabelle
-
-import scala.actors.Actor, Actor._
-import scala.collection.mutable.ListBuffer
-
-
-class Event_Bus[Event]
-{
- /* receivers */
-
- private val receivers = new ListBuffer[Actor]
-
- def += (r: Actor) { synchronized { receivers += r } }
- def + (r: Actor): Event_Bus[Event] = { this += r; this }
-
- def += (f: Event => Unit) {
- this += actor { loop { react { case x: Event => f(x) } } }
- }
-
- def + (f: Event => Unit): Event_Bus[Event] = { this += f; this }
-
- def -= (r: Actor) { synchronized { receivers -= r } }
- def - (r: Actor) = { this -= r; this }
-
-
- /* event invocation */
-
- def event(x: Event) { synchronized { receivers.foreach(_ ! x) } }
-}