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/*
* Copyright (c) 2002, 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.jdb.untrace.untrace001;
import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdb.*;
import java.io.*;
/* This is debuggee aplication */
public class untrace001a {
public static void main(String args[]) {
untrace001a _untrace001a = new untrace001a();
System.exit(untrace001.JCK_STATUS_BASE + _untrace001a.runIt(args, System.out));
}
static void breakHere() {}
static final String MYTHREAD = "MyThread";
static final int numThreads = 1; // number of threads.
static JdbArgumentHandler argumentHandler;
static Log log;
static Object mainThreadLock0 = new Object();
static Object mainThreadLock1 = new Object();
static volatile boolean mainThreadRunning;
static volatile boolean[] flags = new boolean[numThreads];
public int runIt(String args[], PrintStream out) {
argumentHandler = new JdbArgumentHandler(args);
log = new Log(out, argumentHandler);
int i;
Thread holder [] = new Thread[numThreads];
Object[] locks = new Object[numThreads];
for (i = 0; i < numThreads ; i++) {
locks[i] = new Object();
holder[i] = new MyThread(locks[i], i, MYTHREAD + "-" + i);
}
synchronized (mainThreadLock0) {
synchronized (mainThreadLock1) {
for (i = 0; i < numThreads ; i++) {
holder[i].start();
try {
mainThreadRunning = false;
while (!mainThreadRunning) {
mainThreadLock1.wait();
}
} catch (InterruptedException e) {
log.complain("Main thread was interrupted while waiting for start of " + MYTHREAD + "-" + i);
return untrace001.FAILED;
}
synchronized (locks[i]) { // holder[i] must wait on its lock[i] at this moment.
log.display("Thread " + MYTHREAD + "-" + i + " is waiting");
}
}
}
breakHere(); // a break to get thread ids and then to turn on tracing.
// waits on all MyThreads completion
for (i = 0; i < numThreads ; i++) {
synchronized (locks[i]) {
flags[i] = true;
locks[i].notifyAll();
}
try {
mainThreadRunning = false;
while (!mainThreadRunning) {
mainThreadLock0.wait();
}
} catch (InterruptedException e) {
log.complain("Main thread was interrupted while waiting for " + MYTHREAD + "-" + i);
return untrace001.FAILED;
}
breakHere(); // a break to turn off tracing.
synchronized (locks[i]) {
flags[i] = true;
locks[i].notifyAll();
}
if (holder[i].isAlive() && !holder[i].interrupted()) {
try {
holder[i].join();
} catch (InterruptedException e) {
log.complain("Main thread was interrupted while waiting for finish of " + MYTHREAD + "-" + i);
return untrace001.FAILED;
}
}
}
}
log.display("Debuggee PASSED");
return untrace001.PASSED;
}
}
class MyThread extends Thread {
Object lock;
int ind;
String name;
public MyThread (Object l, int i, String n) {
lock = l;
ind = i;
name = n;
}
public void run() {
// Concatenate strings in advance to avoid lambda calculations later
final String ThreadFinished = "Thread finished: " + this.name;
final String ThreadInterrupted = "Thread was interrupted: " + this.name;
untrace001a.log.display("Thread started: " + this.name);
synchronized (lock) {
synchronized (untrace001a.mainThreadLock1) {
untrace001a.mainThreadRunning = true;
untrace001a.mainThreadLock1.notify();
}
try {
untrace001a.flags[ind] = false;
while (!untrace001a.flags[ind]) {
lock.wait();
}
int square = func1(2);
synchronized (untrace001a.mainThreadLock0) {
untrace001a.mainThreadRunning = true;
untrace001a.mainThreadLock0.notify();
}
untrace001a.flags[ind] = false;
while (!untrace001a.flags[ind]) {
lock.wait();
}
square = func1(3);
untrace001a.log.display(ThreadFinished);
} catch (InterruptedException e) {
untrace001a.log.display(ThreadInterrupted);
}
}
untrace001a.log.display(ThreadFinished);
}
public int func1(int i) {
return func2(i);
}
public int func2(int i) {
return func3(i);
}
public int func3(int i) {
return i*i;
}
}
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