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From michaelandrepearce <...@git.apache.org>
Subject [GitHub] activemq-artemis pull request #1443: ARTEMIS-1324 Deadlock detection and hea...
Date Mon, 07 Aug 2017 21:00:11 GMT
Github user michaelandrepearce commented on a diff in the pull request:

    https://github.com/apache/activemq-artemis/pull/1443#discussion_r131762073
  
    --- Diff: artemis-commons/src/main/java/org/apache/activemq/artemis/utils/critical/CriticalComponentImpl.java
---
    @@ -0,0 +1,68 @@
    +/**
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements. See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to You 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 org.apache.activemq.artemis.utils.critical;
    +
    +/**
    + * This is not abstract as it could be used through aggregations or extensions.
    + * This is only good for cases where you call leave within the same thread as you called
enter.
    + */
    +public class CriticalComponentImpl implements CriticalComponent {
    +
    +   private final CriticalMeasure[] measures;
    +   private final CriticalAnalyzer analyzer;
    +
    +   public CriticalComponentImpl(CriticalAnalyzer analyzer, int numberOfPaths) {
    +      if (analyzer == null) {
    +         analyzer = EmptyCriticalAnalyzer.getInstance();
    +      }
    +      this.analyzer = analyzer;
    +
    +      if (analyzer.isMeasuring()) {
    +         measures = new CriticalMeasure[numberOfPaths];
    +         for (int i = 0; i < numberOfPaths; i++) {
    +            measures[i] = new CriticalMeasure();
    +         }
    +      } else {
    +         measures = null;
    +      }
    +   }
    +
    +   @Override
    +   public void enterCritical(int path) {
    +      if (analyzer.isMeasuring()) {
    +         measures[path].enterCritical();
    +      }
    +
    --- End diff --
    
    nit: empty line


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