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/*
* Copyright (c) 2004, 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.
*
* 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 nsk.jvmti.GetThreadState;
import java.io.PrintStream;
public class thrstat001 {
public static final int STATUS_RUNNING = 0;
public static final int STATUS_MONITOR = 1;
public static final int STATUS_WAIT = 2;
native static void checkStatus(int statInd);
native static int getRes();
public static void main(String[] args) {
args = nsk.share.jvmti.JVMTITest.commonInit(args);
System.exit(run(args, System.out) + 95/*STATUS_TEMP*/);
}
public static int run(String argv[], PrintStream ref) {
thrstat001 t = new thrstat001();
t.meth();
return getRes();
}
// barriers for testing thread status values
public static Lock startingMonitor = new Lock();
public static Object blockingMonitor = new Object();
public static Lock endingMonitor = new Lock();
void meth() {
thrstat001a thr = new thrstat001a("thr1");
synchronized (blockingMonitor) {
synchronized (startingMonitor) {
startingMonitor.val = 0;
thr.start();
while (startingMonitor.val == 0) {
try {
startingMonitor.wait();
} catch (InterruptedException e) {
throw new Error("Unexpected: " + e);
}
}
}
Thread.yield();
checkStatus(STATUS_MONITOR);
}
synchronized (endingMonitor) {
checkStatus(STATUS_WAIT);
endingMonitor.val++;
endingMonitor.notify();
}
try {
thr.join();
} catch (InterruptedException e) {
throw new Error("Unexpected: " + e);
}
}
static class Lock {
public int val = 0;
}
}
class thrstat001a extends Thread {
public thrstat001a(String name) {
super(name);
}
public void run() {
synchronized (thrstat001.endingMonitor) {
thrstat001.checkStatus(thrstat001.STATUS_RUNNING);
synchronized (thrstat001.startingMonitor) {
thrstat001.startingMonitor.val++;
thrstat001.startingMonitor.notifyAll();
}
synchronized (thrstat001.blockingMonitor) {
}
thrstat001.endingMonitor.val = 0;
while (thrstat001.endingMonitor.val == 0) {
try {
thrstat001.endingMonitor.wait();
} catch (InterruptedException e) {
throw new Error("Unexpected: " + e);
}
}
}
}
}
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