+//
+// ========================================================================
+// 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;
+
+/**
+ * <p>A {@link ByteBuffer} pool.</p>
+ * <p>Acquired buffers may be {@link #release(ByteBuffer) released} but they do not need to;
+ * if they are released, they may be recycled and reused, otherwise they will be garbage
+ * collected as usual.</p>
+ */
+public interface ByteBufferPool
+{
+ /**
+ * <p>Requests a {@link ByteBuffer} of the given size.</p>
+ * <p>The returned buffer may have a bigger capacity than the size being
+ * requested but it will have the limit set to the given size.</p>
+ *
+ * @param size the size of the buffer
+ * @param direct whether the buffer must be direct or not
+ * @return the requested buffer
+ * @see #release(ByteBuffer)
+ */
+ public ByteBuffer acquire(int size, boolean direct);
+
+ /**
+ * <p>Returns a {@link ByteBuffer}, usually obtained with {@link #acquire(int, boolean)}
+ * (but not necessarily), making it available for recycling and reuse.</p>
+ *
+ * @param buffer the buffer to return
+ * @see #acquire(int, boolean)
+ */
+ public void release(ByteBuffer buffer);
+}