org.eclipse.jetty.io.LeakTrackingByteBufferPool Maven / Gradle / Ivy
//
// ========================================================================
// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.io;
import java.nio.ByteBuffer;
import org.eclipse.jetty.util.LeakDetector;
import org.eclipse.jetty.util.component.ContainerLifeCycle;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
public class LeakTrackingByteBufferPool extends ContainerLifeCycle implements ByteBufferPool
{
private static final Logger LOG = Log.getLogger(LeakTrackingByteBufferPool.class);
private final LeakDetector leakDetector = new LeakDetector()
{
@Override
protected void leaked(LeakInfo leakInfo)
{
LeakTrackingByteBufferPool.this.leaked(leakInfo);
}
};
private final ByteBufferPool delegate;
public LeakTrackingByteBufferPool(ByteBufferPool delegate)
{
this.delegate = delegate;
addBean(leakDetector);
addBean(delegate);
}
@Override
public ByteBuffer acquire(int size, boolean direct)
{
ByteBuffer buffer = delegate.acquire(size, direct);
if (!leakDetector.acquired(buffer))
LOG.warn("ByteBuffer {}@{} not tracked", buffer, System.identityHashCode(buffer));
return buffer;
}
@Override
public void release(ByteBuffer buffer)
{
if (buffer == null)
return;
if (!leakDetector.released(buffer))
LOG.warn("ByteBuffer {}@{} released but not acquired", buffer, System.identityHashCode(buffer));
delegate.release(buffer);
}
protected void leaked(LeakDetector.LeakInfo leakInfo)
{
LOG.warn("ByteBuffer " + leakInfo.getResourceDescription() + " leaked at:", leakInfo.getStackFrames());
}
}