diff -r 8e1ed2a15845 -r 4690a2871b44 src/java.net.http/share/classes/jdk/internal/net/http/common/ByteBufferPool.java --- a/src/java.net.http/share/classes/jdk/internal/net/http/common/ByteBufferPool.java Wed May 02 10:47:16 2018 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,60 +0,0 @@ -/* - * Copyright (c) 2015, 2018, 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 - * questions. - */ -package jdk.internal.net.http.common; - -import java.nio.ByteBuffer; -import java.util.concurrent.ConcurrentLinkedQueue; - -/** - * The class provides reuse of ByteBuffers. - * It is supposed that all requested buffers have the same size for a long period of time. - * That is why there is no any logic splitting buffers into different buckets (by size). It's unnecessary. - * - * At the same moment it is allowed to change requested buffers size (all smaller buffers will be discarded). - * It may be needed for example, if after rehandshaking netPacketBufferSize was changed. - */ -public class ByteBufferPool { - - private final java.util.Queue pool = new ConcurrentLinkedQueue<>(); - - public ByteBufferPool() { - } - - public ByteBufferReference get(int size) { - ByteBuffer buffer; - while ((buffer = pool.poll()) != null) { - if (buffer.capacity() >= size) { - return ByteBufferReference.of(buffer, this); - } - } - return ByteBufferReference.of(ByteBuffer.allocate(size), this); - } - - public void release(ByteBuffer buffer) { - buffer.clear(); - pool.offer(buffer); - } - -}