/*
* @(#)$Id: codetemplate_xbird.xml 943 2006-09-13 07:03:37Z yui $
*
* Copyright 2006-2008 Makoto YUI
*
* Licensed 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.
*
* Contributors:
* Makoto YUI - initial implementation
*/
package xbird.util.nio;
import java.io.Closeable;
import java.io.IOException;
import java.nio.MappedByteBuffer;
import java.util.concurrent.atomic.AtomicInteger;
/**
*
* <DIV lang="en"></DIV>
* <DIV lang="ja"></DIV>
*
* @author Makoto YUI (yuin405+xbird@gmail.com)
*/
public final class CloseableMappedByteBuffer implements Closeable {
private final AtomicInteger refcount;
private final MappedByteBuffer delegate;
public CloseableMappedByteBuffer(MappedByteBuffer delegate) {
this.refcount = new AtomicInteger(1);
this.delegate = delegate;
}
public MappedByteBuffer getBuffer() {
return delegate;
}
public AtomicInteger referenceCount() {
return refcount;
}
public void close() throws IOException {
if(refcount.getAndDecrement() == 0) {
NIOUtils.clean(delegate);
}
}
}