/*
* Copyright ( c ) 1999 , 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
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* questions .
*/
/*
* @ test
* @ summary Basic functional test of InheritableThreadLocal
* @ author Josh Bloch
*/
public class Basic {
static InheritableThreadLocal n = new InheritableThreadLocal() {
protected Object initialValue() {
return new Integer(0 );
}
protected Object childValue(Object parentValue) {
return new Integer(((Integer)parentValue).intValue() + 1 );
}
};
static int threadCount = 100 ;
static int x[];
public static void main(String args[]) throws Exception {
x = new int [threadCount];
Thread progenitor = new MyThread();
progenitor.start();
// Wait for *all* threads to complete
progenitor.join();
// Check results
for (int i=0 ; i<threadCount; i++)
if (x[i] != i)
throw (new Exception("x[" + i + "] =" + x[i]));
}
private static class MyThread extends Thread {
public void run() {
Thread child = null ;
if (((Integer)(n.get())).intValue() < threadCount-1 ) {
child = new MyThread();
child.start();
}
Thread .currentThread().yield();
int threadId = ((Integer)(n.get())).intValue();
for (int j=0 ; j<threadId; j++) {
x[threadId]++;
Thread .currentThread().yield();
}
// Wait for child (if any)
if (child != null ) {
try {
child.join();
} catch (InterruptedException e) {
throw (new RuntimeException("Interrupted" ));
}
}
}
}
}
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