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Changing Mailbox.Status to be an Int

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This commit is contained in:
Viktor Klang 2011-09-26 11:39:07 +02:00
parent 1b90a467bc
commit 29a327aba4
3 changed files with 27 additions and 28 deletions
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27
akka-actor/src/main/scala/akka/dispatch/MailboxHandling.scala
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@ -15,11 +15,10 @@ import atomic.AtomicReferenceFieldUpdater
class MessageQueueAppendFailedException(message: String, cause: Throwable = null) extends AkkaException(message, cause)
object Mailbox {
sealed trait Status
case object OPEN extends Status
case object SUSPENDED extends Status
case object CLOSED extends Status
type Status = Int
val Open = 0
val Suspended = 1
val Closed = 2
//private[Mailbox] val mailboxStatusUpdater = AtomicReferenceFieldUpdater.newUpdater[Mailbox, Status](classOf[Mailbox], classOf[Status], "_status")
}
@ -33,20 +32,20 @@ abstract class Mailbox extends MessageQueue with SystemMessageQueue with Runnabl
*/
final val dispatcherLock = new SimpleLock(startLocked = false)
@volatile
var _status: Status = OPEN //Must be named _status because of the updater
var _status: Status = Open //Must be named _status because of the updater
final def status: Mailbox.Status = _status //mailboxStatusUpdater.get(this)
final def isSuspended: Boolean = status == SUSPENDED
final def isClosed: Boolean = status == CLOSED
final def isOpen: Boolean = status == OPEN
final def isSuspended: Boolean = status == Suspended
final def isClosed: Boolean = status == Closed
final def isOpen: Boolean = status == Open
def become(newStatus: Status) = _status = newStatus //mailboxStatusUpdater.set(this, newStatus)
def shouldBeRegisteredForExecution(hasMessageHint: Boolean, hasSystemMessageHint: Boolean): Boolean = status match {
case CLOSED ⇒ false
case OPEN ⇒ hasMessageHint || hasSystemMessageHint || hasSystemMessages || hasMessages
case SUSPENDED ⇒ hasSystemMessageHint || hasSystemMessages
case `Open` ⇒ hasMessageHint || hasSystemMessageHint || hasSystemMessages || hasMessages
case `Closed` ⇒ false
case `Suspended` ⇒ hasSystemMessageHint || hasSystemMessages
}
final def run = {
@ -66,7 +65,7 @@ abstract class Mailbox extends MessageQueue with SystemMessageQueue with Runnabl
final def processMailbox() {
processAllSystemMessages()
if (status == OPEN) {
if (isOpen) {
var nextMessage = dequeue()
if (nextMessage ne null) { //If we have a message
if (dispatcher.throughput <= 1) { //If we only run one message per process {
@ -82,7 +81,7 @@ abstract class Mailbox extends MessageQueue with SystemMessageQueue with Runnabl
processAllSystemMessages()
nextMessage = if (status == OPEN) { // If we aren't suspended, we need to make sure we're not overstepping our boundaries
nextMessage = if (isOpen) { // If we aren't suspended, we need to make sure we're not overstepping our boundaries
processedMessages += 1
if ((processedMessages >= dispatcher.throughput) || (isDeadlineEnabled && System.nanoTime >= deadlineNs)) // If we're throttled, break out
null //We reached our boundaries, abort