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/*
* Copyright (c) 2003, 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.GetThreadGroupChildren;
import java.io.PrintStream;
import nsk.share.*;
import nsk.share.jvmti.*;
public class getthrdgrpchld001 extends DebugeeClass {
// load native library if required
static {
System.loadLibrary("getthrdgrpchld001");
}
// run test from command line
public static void main(String argv[]) {
argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
// JCK-compatible exit
System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
}
// run test from JCK-compatible environment
public static int run(String argv[], PrintStream out) {
return new getthrdgrpchld001().runIt(argv, out);
}
/* =================================================================== */
// scaffold objects
ArgumentHandler argHandler = null;
Log log = null;
long timeout = 0;
int status = Consts.TEST_PASSED;
// constants
public static final int DEFAULT_THREADS_COUNT = 4;
// monitors
public static Object endingMonitor = new Object();
// tested thread groups
ThreadGroup rootGroup = new ThreadGroup("rootThreadGroup");
ThreadGroup runningGroup = new ThreadGroup(rootGroup, "runningThreadGroup");
ThreadGroup notStartedGroup = new ThreadGroup(rootGroup, "notStartedThreadGroup");
ThreadGroup finishedGroup = new ThreadGroup(rootGroup, "finishedThreadGroup");
// tested threads
getthrdgrpchld001ThreadRunning runningThreads[] = null;
getthrdgrpchld001Thread notStartedThreads[] = null;
getthrdgrpchld001Thread finishedThreads[] = null;
int threadsCount = 0;
// run debuggee
public int runIt(String argv[], PrintStream out) {
argHandler = new ArgumentHandler(argv);
log = new Log(out, argHandler);
timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds
threadsCount = argHandler.findOptionIntValue("threads", DEFAULT_THREADS_COUNT);
// create tested threads
runningThreads = new getthrdgrpchld001ThreadRunning[threadsCount];
notStartedThreads = new getthrdgrpchld001Thread[threadsCount];
finishedThreads = new getthrdgrpchld001Thread[threadsCount];
for (int i = 0; i < threadsCount; i++) {
runningThreads[i] =
new getthrdgrpchld001ThreadRunning(runningGroup, "runningThread #" + i);
notStartedThreads[i] =
new getthrdgrpchld001Thread(notStartedGroup, "notStartedThread #" + i);
finishedThreads[i] =
new getthrdgrpchld001Thread(finishedGroup, "finishedThread #" + i);
}
// run tested threads
log.display("Staring tested threads");
try {
synchronized (endingMonitor) {
for (int i = 0; i < threadsCount; i++) {
synchronized (runningThreads[i].startingMonitor) {
runningThreads[i].start();
runningThreads[i].startingMonitor.wait();
}
finishedThreads[i].start();
finishedThreads[i].join();
}
// testing sync
log.display("Sync: thread ready");
status = checkStatus(status);
// let running threads to finish
}
// wait for running threads to finish
log.display("Finishing running threads");
for (int i = 0; i < threadsCount; i++) {
runningThreads[i].join();
}
} catch (InterruptedException e) {
throw new Failure("Interruption while running tested threads: \n\t" + e);
}
return status;
}
}
/* =================================================================== */
// basic class for tested thread
class getthrdgrpchld001Thread extends Thread {
public getthrdgrpchld001Thread(ThreadGroup group, String name) {
super(group, name);
}
public void run() {
// do something
int s = 0;
for (int i = 0; i < 1000; i++) {
s += i;
if (s > 1000)
s = 0;
}
}
}
// tested thread running
class getthrdgrpchld001ThreadRunning extends getthrdgrpchld001Thread {
public Object startingMonitor = new Object();
public getthrdgrpchld001ThreadRunning(ThreadGroup group, String name) {
super(group, name);
}
public void run() {
// notify about starting
synchronized (startingMonitor) {
startingMonitor.notifyAll();
}
// block before finishing
synchronized ( getthrdgrpchld001.endingMonitor) {
// just finish
}
}
}
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