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Document and fix getAsyncCallback thread safety issues #27999

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Johan Andrén 2019-11-22 13:38:06 +01:00 • committed by GitHub
parent 897443da40
commit 61bd3d42b6
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4 changed files with 57 additions and 35 deletions
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12
akka-stream/src/main/scala/akka/stream/impl/fusing/Ops.scala
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@ -1407,14 +1407,12 @@ private[stream] object Collect {
new GraphStageLogic(shape) with InHandler with OutHandler with StageLogging {
override protected def logSource: Class[_] = classOf[Watch[_]]
private lazy val self = getStageActor {
case (_, Terminated(`targetRef`)) =>
failStage(new WatchedActorTerminatedException("Watch", targetRef))
case (_, _) => // keep the compiler happy (stage actor receive is total)
}
override def preStart(): Unit = {
// initialize self, and watch the target
val self = getStageActor {
case (_, Terminated(`targetRef`)) =>
failStage(new WatchedActorTerminatedException("Watch", targetRef))
case (_, _) => // keep the compiler happy (stage actor receive is total)
}
self.watch(targetRef)
}