Coverage Report - org.apache.maven.surefire.junitcore.pc.Balancer
 
Classes in this File Line Coverage Branch Coverage Complexity
Balancer
N/A
N/A
1
 
 1  
 package org.apache.maven.surefire.junitcore.pc;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
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  *     http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 /**
 23  
  * The Balancer controls the maximum of concurrent threads in the current Scheduler(s) and prevents
 24  
  * from own thread resources exhaustion if other group of schedulers share the same pool of threads.
 25  
  * <p>
 26  
  * If a permit is available, {@link #acquirePermit()} simply returns and a new test is scheduled
 27  
  * by {@link Scheduler#schedule(Runnable)} in the current runner. Otherwise waiting for a release.
 28  
  * One permit is released as soon as the child thread has finished.
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  *
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  * @author Tibor Digana (tibor17)
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  * @since 2.16
 32  
  */
 33  
 public interface Balancer {
 34  
 
 35  
     /**
 36  
      * Acquires a permit from this balancer, blocking until one is available.
 37  
      *
 38  
      * @return <code>true</code> if current thread is <em>NOT</em> interrupted
 39  
      *         while waiting for a permit.
 40  
      */
 41  
     public boolean acquirePermit();
 42  
 
 43  
     /**
 44  
      * Releases a permit, returning it to the balancer.
 45  
      */
 46  
     public void releasePermit();
 47  
 
 48  
     public void releaseAllPermits();
 49  
 }