org.apache.derbyTesting.functionTests.util

Class Barrier

java.lang.Object

org.apache.derbyTesting.functionTests.util.Barrier

public class Barrier
extends java.lang.Object

In the absence of java.util.concurrent.CyclicBarrier on some of the platforms we test, create our own barrier class. This class allows threads to wait for one another on specific locations, so that they know they're all in the expected state.

Field Summary

Fields

Modifier and Type	Field and Description
private int	numThreads Number of threads to wait for at the barrier.

Constructor Summary

Constructors

Constructor and Description
Barrier(int numThreads) Create a barrier for the specified number of threads.

Method Summary

Modifier and Type	Method and Description
void	await() Wait until numThreads have called await() on this barrier, then proceed.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

numThreads

private int numThreads

Number of threads to wait for at the barrier.

Constructor Detail

Barrier

public Barrier(int numThreads)

Create a barrier for the specified number of threads.

Method Detail

await

public void await()
           throws java.lang.InterruptedException

Wait until numThreads have called await() on this barrier, then proceed.

Throws:

java.lang.InterruptedException - if the thread is interrupted while waiting for the other threads to reach the barrier.