/*

 * Copyright (c) 2013, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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.

 *

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package jdk.jfr.event.runtime;

import static jdk.test.lib.Asserts.assertFalse;

import static jdk.test.lib.Asserts.assertTrue;

import java.time.Duration;

import java.util.concurrent.CountDownLatch;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.test.lib.jfr.EventNames;

import jdk.test.lib.jfr.Events;

import jdk.test.lib.thread.TestThread;

import jdk.test.lib.thread.XRun;

/*

 * @test

 * @key jfr

 * @library /test/lib

 * @run main/othervm jdk.jfr.event.runtime.TestJavaMonitorWaitEvent

 */

public class TestJavaMonitorWaitEvent {

    private final static String EVENT_NAME = EventNames.JavaMonitorWait;

    private static final long WAIT_TIME = 123456;

    static class Lock {

    }

    static boolean silenceFindBugsNakedNotify;

    public static void main(String[] args) throws Throwable {

        Recording recording = new Recording();

        recording.enable(EVENT_NAME).withThreshold(Duration.ofMillis(0));

        final Lock lock = new Lock();

        final CountDownLatch latch = new CountDownLatch(1);

        TestThread waitThread = new TestThread(new XRun() {

            @Override

            public void xrun() throws Throwable {

                synchronized (lock) {

                    latch.countDown();

                    lock.wait(WAIT_TIME);

                    silenceFindBugsNakedNotify = false;

                }

            }

        });

        try {

            recording.start();

            waitThread.start();

            latch.await();

            synchronized (lock) {

                silenceFindBugsNakedNotify = true;

                lock.notifyAll();

            }

        } finally {

            waitThread.join();

            recording.stop();

        }

        boolean isAnyFound = false;

        for (RecordedEvent event : Events.fromRecording(recording)) {

            System.out.println("Event:" + event);

            if ((long)Events.assertField(event, "timeout").getValue() != WAIT_TIME) {

                continue;

            }

            assertFalse(isAnyFound, "Found more than 1 event");

            isAnyFound = true;

            Events.assertEventThread(event, waitThread);

            final String lockClassName = lock.getClass().getName().replace('.', '/');

            Events.assertField(event, "monitorClass.name").equal(lockClassName);

            Events.assertField(event, "address").notEqual(0L);

            Events.assertField(event, "timedOut").equal(false);

            Events.assertEventThread(event, "notifier", Thread.currentThread());

        }

        assertTrue(isAnyFound, "Correct event not found");

    }

}