116 lines
4.3 KiB
Java
116 lines
4.3 KiB
Java
/*
|
|
* 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 ThreadLocal
|
|
* @author Seetharama Avadhanam
|
|
*/
|
|
|
|
public class TLRemoveTest {
|
|
private static final int INITIAL_VALUE = 101;
|
|
private static final int REMOVE_SET_VALUE = 102;
|
|
|
|
static ThreadLocal<Integer> n = new ThreadLocal<Integer>() {
|
|
protected synchronized Integer initialValue() {
|
|
return INITIAL_VALUE;
|
|
}
|
|
};
|
|
|
|
public static void main(String args[]) throws Throwable {
|
|
int threadCount = 100;
|
|
final int[] removeNode = {10,20,45,38};
|
|
// ThreadLocal values will be removed for these threads.
|
|
final int[] removeAndSet = {12,34,10};
|
|
// ThreadLocal values will be removed and sets new values..
|
|
|
|
Thread th[] = new Thread[threadCount];
|
|
final int x[] = new int[threadCount];
|
|
final Throwable exceptions[] = new Throwable[threadCount];
|
|
|
|
for(int i = 0; i<threadCount; i++) {
|
|
final int threadId = i;
|
|
th[i] = new Thread() {
|
|
public void run() {
|
|
try{
|
|
n.set(threadId); // Sets threadId as threadlocal value...
|
|
for (int j = 0; j<threadId; j++)
|
|
Thread.currentThread().yield();
|
|
|
|
// To remove the ThreadLocal ....
|
|
for(int removeId : removeNode)
|
|
if(threadId == removeId){
|
|
n.remove(); // Removes ThreadLocal values..
|
|
break;
|
|
}
|
|
|
|
// To remove the ThreadLocal value and set new value ...
|
|
for(int removeId : removeAndSet)
|
|
if(threadId == removeId){
|
|
n.remove(); // Removes the ThreadLocal Value...
|
|
n.set(REMOVE_SET_VALUE); /* Setting new Values to
|
|
ThreadLocal */
|
|
break;
|
|
}
|
|
/* Storing the threadlocal values in 'x'
|
|
...so that it can be used for checking results... */
|
|
x[threadId] = n.get();
|
|
}
|
|
catch(Throwable ex){
|
|
exceptions[threadId] = ex;
|
|
}
|
|
}
|
|
};
|
|
th[i].start();
|
|
}
|
|
|
|
// Wait for the threads to finish
|
|
for(int i = 0; i<threadCount; i++)
|
|
th[i].join();
|
|
|
|
// Check results
|
|
for(int i = 0; i<threadCount; i++){
|
|
int checkValue = i;
|
|
|
|
/* 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]));
|
|
}
|
|
}
|
|
}
|