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Fixing (yes, I know, I've said this a biiiiiillion times) the BalancingDispatcher, removing some wasteful volatile reads in the hot path

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Viktor Klang 2011-11-18 17:03:35 +01:00
parent 069c68f6d4
commit 9ae3d7feba
7 changed files with 106 additions and 115 deletions
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12
akka-actor/src/main/scala/akka/dispatch/Dispatcher.scala
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@ -107,20 +107,16 @@ class Dispatcher(
protected[akka] def createMailbox(actor: ActorCell): Mailbox = mailboxType.create(actor)
protected[akka] def shutdown {
executorService.getAndSet(new ExecutorServiceDelegate {
protected[akka] def shutdown: Unit =
Option(executorService.getAndSet(new ExecutorServiceDelegate {
lazy val executor = executorServiceFactory.createExecutorService
}) match {
case null ⇒
case some ⇒ some.shutdown()
}
}
})) foreach { _.shutdown() }
/**
* Returns if it was registered
*/
protected[akka] override def registerForExecution(mbox: Mailbox, hasMessageHint: Boolean, hasSystemMessageHint: Boolean): Boolean = {
if (mbox.shouldBeScheduledForExecution(hasMessageHint, hasSystemMessageHint)) { //This needs to be here to ensure thread safety and no races
if (mbox.canBeScheduledForExecution(hasMessageHint, hasSystemMessageHint)) { //This needs to be here to ensure thread safety and no races
if (mbox.setAsScheduled()) {
try {
executorService.get() execute mbox