| /* |
| * Copyright (c) 2004, 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. |
| * |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @summary Basic functional test of remove method for InheritableThreadLocal |
| * @author Seetharama Avadhanam |
| */ |
| |
| public class ITLRemoveTest { |
| private static final int INITIAL_VALUE = Integer.MIN_VALUE; |
| private static final int REMOVE_SET_VALUE = Integer.MAX_VALUE; |
| |
| static InheritableThreadLocal<Integer> n = new InheritableThreadLocal<Integer>() { |
| protected Integer initialValue() { |
| return INITIAL_VALUE; |
| } |
| |
| protected Integer childValue(Integer parentValue) { |
| return(parentValue + 1); |
| } |
| }; |
| |
| static int threadCount = 100; |
| static int x[]; |
| static Throwable exceptions[]; |
| static final int[] removeNode = {10,20,45,38,88}; |
| /* ThreadLocal values will be removed for these threads. */ |
| static final int[] removeAndSet = {12,34,10}; |
| /* ThreadLocal values will be removed and sets new values */ |
| |
| public static void main(String args[]) throws Throwable { |
| x = new int[threadCount]; |
| exceptions = new Throwable[threadCount]; |
| |
| Thread progenitor = new MyThread(); |
| progenitor.start(); |
| |
| // Wait for *all* threads to complete |
| progenitor.join(); |
| |
| for(int i = 0; i<threadCount; i++){ |
| int checkValue = i+INITIAL_VALUE; |
| |
| /* If the remove method is called then the ThreadLocal value will |
| * be its initial value */ |
| for(int removeId : removeNode) |
| if(removeId == i){ |
| checkValue = INITIAL_VALUE; |
| break; |
| } |
| |
| for(int removeId : removeAndSet) |
| if(removeId == i){ |
| checkValue = REMOVE_SET_VALUE; |
| break; |
| } |
| |
| if(exceptions[i] != null) |
| throw(exceptions[i]); |
| if(x[i] != checkValue) |
| throw(new Throwable("x[" + i + "] =" + x[i])); |
| } |
| } |
| private static class MyThread extends Thread { |
| public void run() { |
| |
| Thread child = null; |
| int threadId=0; |
| try{ |
| threadId = n.get(); |
| // Creating child thread... |
| if (threadId < (threadCount-1+INITIAL_VALUE)) { |
| child = new MyThread(); |
| child.start(); |
| } |
| |
| for (int j = 0; j<threadId; j++) |
| Thread.currentThread().yield(); |
| |
| |
| // To remove the ThreadLocal value... |
| for(int removeId : removeNode) |
| if((threadId-INITIAL_VALUE) == removeId){ |
| n.remove(); |
| break; |
| } |
| |
| // To remove the ThreadLocal value and set new value ... |
| for(int removeId : removeAndSet) |
| if((threadId-INITIAL_VALUE) == removeId){ |
| n.remove(); |
| n.set(REMOVE_SET_VALUE); |
| break; |
| } |
| x[threadId-INITIAL_VALUE] = n.get(); |
| }catch(Throwable ex){ |
| exceptions[threadId-INITIAL_VALUE] = ex; |
| } |
| // Wait for child (if any) |
| if (child != null) { |
| try { |
| child.join(); |
| } catch(InterruptedException e) { |
| throw(new RuntimeException("Interrupted")); |
| } |
| } |
| } |
| } |
| } |