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Diffstat (limited to 'kamon-core/src/main/scala/akka/instrumentation/UnboundedMailboxInstrumentation.scala')
-rw-r--r-- | kamon-core/src/main/scala/akka/instrumentation/UnboundedMailboxInstrumentation.scala | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/kamon-core/src/main/scala/akka/instrumentation/UnboundedMailboxInstrumentation.scala b/kamon-core/src/main/scala/akka/instrumentation/UnboundedMailboxInstrumentation.scala deleted file mode 100644 index 94cd82eb..00000000 --- a/kamon-core/src/main/scala/akka/instrumentation/UnboundedMailboxInstrumentation.scala +++ /dev/null @@ -1,58 +0,0 @@ -/* - * ========================================================================================= - * Copyright © 2013-2014 the kamon project <http://kamon.io/> - * - * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file - * except in compliance with the License. You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software distributed under the - * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, - * either express or implied. See the License for the specific language governing permissions - * and limitations under the License. - * ========================================================================================= - */ -package akka.instrumentation - -import org.aspectj.lang.annotation._ -import java.util.concurrent.atomic.AtomicInteger -import org.aspectj.lang.ProceedingJoinPoint - -/** - * This aspect adds a counter to the message queue to get O(1) time in the .numberOfMessages method implementation - */ -@Aspect -class UnboundedMailboxInstrumentation { - - @DeclareMixin("akka.dispatch.UnboundedMailbox$MessageQueue") - def mixinMailboxToMailboxSizeAware: MessageQueueSizeCounting = new MessageQueueSizeCounting {} - - @Pointcut("execution(* akka.dispatch.UnboundedMailbox$MessageQueue.enqueue(..)) && this(queue)") - def enqueuePointcut(queue: MessageQueueSizeCounting): Unit = {} - - @Pointcut("execution(* akka.dispatch.UnboundedMailbox$MessageQueue.dequeue()) && this(queue)") - def dequeuePointcut(queue: MessageQueueSizeCounting): Unit = {} - - @Pointcut("execution(* akka.dispatch.UnboundedMailbox$MessageQueue.numberOfMessages()) && this(queue)") - def numberOfMessagesPointcut(queue: MessageQueueSizeCounting): Unit = {} - - @After("dequeuePointcut(queue)") - def afterDequeuePointcut(queue: MessageQueueSizeCounting): Unit = { - if (queue.internalQueueSize.get() > 0) queue.internalQueueSize.decrementAndGet() - } - - @After("enqueuePointcut(queue)") - def afterEnqueue(queue: MessageQueueSizeCounting): Unit = { - queue.internalQueueSize.incrementAndGet() - } - - @Around("numberOfMessagesPointcut(queue)") - def aroundNumberOfMessages(pjp: ProceedingJoinPoint, queue: MessageQueueSizeCounting): Any = { - queue.internalQueueSize.get() - } -} - -trait MessageQueueSizeCounting { - val internalQueueSize = new AtomicInteger -} |