1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun; 27 28 import java.lang.ref.Reference; 29 30 /** 31 * ReentrantContext is a base class to hold thread-local data supporting 32 * reentrancy in either a ThreadLocal or a ConcurrentLinkedQueue 33 * 34 * @see ReentrantContextProvider 35 */ 36 public class ReentrantContext { 37 // usage stored as a byte 38 byte usage = ReentrantContextProvider.USAGE_TL_INACTIVE; 39 /* 40 * Reference to this instance (hard, soft or weak). 41 * @see ReentrantContextProvider#refType 42 */ 43 Reference<? extends ReentrantContext> reference = null; 44 }