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/***************************************************************************
* Copyright (c) 2004-2007 Eike Stepper, Germany.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.tests;
import org.eclipse.net4j.IBuffer;
import org.eclipse.net4j.IBufferPool;
import org.eclipse.net4j.Net4jUtil;
import org.eclipse.net4j.internal.util.om.trace.PrintTraceHandler;
import org.eclipse.net4j.util.ReflectUtil;
import org.eclipse.net4j.util.lifecycle.LifecycleUtil;
import org.eclipse.net4j.util.om.OMPlatform;
import java.util.ArrayList;
import java.util.Collection;
/**
* @author Eike Stepper
*/
public class TestBufferPool
{
private static IBufferPool bufferPool = Net4jUtil.createBufferPool();
private static Collection memory = new ArrayList();
public static void main(String[] args) throws InterruptedException
{
OMPlatform.INSTANCE.addTraceHandler(PrintTraceHandler.CONSOLE);
OMPlatform.INSTANCE.setDebugging(true);
LifecycleUtil.activate(bufferPool);
IBuffer[] buffers = new IBuffer[10];
for (int i = 0; i < buffers.length; i++)
{
buffers[i] = bufferPool.provideBuffer();
}
for (int i = 0; i < buffers.length; i++)
{
bufferPool.retainBuffer(buffers[i]);
buffers[i] = null;
}
while (Net4jUtil.getPooledBuffers(bufferPool) > 0 && allocate())
{
Thread.sleep(200);
ReflectUtil.dump(bufferPool);
}
LifecycleUtil.deactivate(bufferPool);
}
private static void msg()
{
System.out.println("pooledBuffers = " + Net4jUtil.getPooledBuffers(bufferPool));
}
private static boolean allocate()
{
try
{
System.out.println("allocating from " + Runtime.getRuntime().freeMemory());
for (int i = 0; i < 10; i++)
{
memory.add(new byte[1000000]);
}
msg();
return true;
}
catch (Exception ex)
{
return false;
}
}
@SuppressWarnings("unused")
private static void gc()
{
msg();
System.out.println("collecting garbage");
System.gc();
msg();
}
}
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