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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package nsk.jdb.thread.thread002;

import jdk.test.lib.thread.ThreadWrapper;
import nsk.share.*;
import nsk.share.jpda.*;
import nsk.share.jdb.*;

import java.io.*;

/* This is debuggee aplication */
public class thread002a {
    public static void main(String args[]) {
        thread002a _thread002a = new thread002a();
        System.exit(thread002.JCK_STATUS_BASE + _thread002a.runIt(args, System.out));
    }

    static void lastBreak () {}
    static int numThreads = 5;   // number of threads
    static Thread holder [] = new Thread[numThreads];

    static Object waitnotify = new Object();

    public int runIt(String args[], PrintStream out) {
        JdbArgumentHandler argumentHandler = new JdbArgumentHandler(args);
        Log log = new Log(out, argumentHandler);

        Lock lock = new Lock();

        try {
            lock.setLock();
            for (int i = 0; i < numThreads ; i++) {
                holder[i] = new MyThread(lock, "MyThread#" + i).getThread();
                synchronized (waitnotify) {
                    holder[i].start();
                    waitnotify.wait();
                }
            }
        } catch (Exception e) {
            System.err.println("TEST ERROR: Caught unexpected Exception while waiting in main thread: " +
                e.getMessage());
            System.exit(thread002.FAILED);
        }

        lastBreak();   // When jdb stops here, there should be 5 running MyThreads.
        lock.releaseLock();

        for (int i = 0; i < numThreads ; i++) {
            if (holder[i].isAlive()) {
                try {
                    holder[i].join(argumentHandler.getWaitTime() * 60000);
                } catch (InterruptedException e) {
                    throw new Failure("Unexpected InterruptedException catched while waiting for join of: " + holder[i]);
                }
            }
        }

        log.display("Debuggee PASSED");
        return thread002.PASSED;
    }

}

class Lock {
    boolean lockSet;

    synchronized void setLock() throws InterruptedException {
        while (lockSet == true)
            wait();
        lockSet = true;
    }

    synchronized void releaseLock() {
        if (lockSet == true) {
            lockSet = false;
            notify();
        }
    }
}

class MyThread extends ThreadWrapper {

    Lock lock;
    String name;

    MyThread (Lock l, String name) {
        super(name);
        this.lock = l;
        this.name = name;
    }

    // Each tested thread calls this once at startup. The debugger sets a
    // breakpoint here: receiving the event is what makes a virtual thread
    // visible to jdb with the default debug agent behavior, so the test
    // does not need the -trackallthreads option.
    static void threadStarted() {}

    public void run() {
        threadStarted();
        synchronized (thread002a.waitnotify) {
            thread002a.waitnotify.notifyAll();
        }
        try {
            lock.setLock();
        } catch(Exception e) {
            System.err.println("TEST ERROR: Caught unexpected Exception while waiting in MyThread: " +
                e.getMessage());
            System.exit(thread002.FAILED);
        }
        lock.releaseLock();
    }
}
