/*
 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 */

package java.net.http;

import java.nio.ByteBuffer;

/**
 * Implemented by buffer pools. A buffer pool has a current buffer size
 * (number of bytes in each buffer) which may increase over time.
 */
interface BufferHandler {

    default ByteBuffer getBuffer() {
        return getBuffer(-1);
    }

    void setMinBufferSize(int size);

    /**
     * size == -1 means return any sized buffer. Any other value means
     * @param size
     * @return
     */
    ByteBuffer getBuffer(int size);

    void returnBuffer(ByteBuffer buffer);
}