55 lines
1.6 KiB
Java
55 lines
1.6 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.tomcat.util.buf;
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import java.nio.ByteBuffer;
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import java.util.concurrent.atomic.AtomicBoolean;
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/**
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* Simple wrapper for a {@link ByteBuffer} that remembers if the buffer has been
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* flipped or not.
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*/
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public class ByteBufferHolder {
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private final ByteBuffer buf;
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private final AtomicBoolean flipped;
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public ByteBufferHolder(ByteBuffer buf, boolean flipped) {
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this.buf = buf;
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this.flipped = new AtomicBoolean(flipped);
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}
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public ByteBuffer getBuf() {
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return buf;
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}
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public boolean isFlipped() {
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return flipped.get();
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}
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public boolean flip() {
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if (flipped.compareAndSet(false, true)) {
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buf.flip();
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return true;
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} else {
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return false;
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}
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}
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} |