test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/events/EM05/em05t002.java

/*
 * 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.scenarios.events.EM05;

import java.io.PrintStream;

import nsk.share.*;
import nsk.share.jvmti.*;

public class em05t002 extends DebugeeClass {

    // load native library if required
    static {
        System.loadLibrary("em05t002");
    }

    // 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 em05t002().runIt(argv, out);
    }

    /* =================================================================== */

    // scaffold objects
    ArgumentHandler argHandler = null;
    Log log = null;
    long timeout = 0;
    int status = Consts.TEST_PASSED;

    // monitors for threads synchronization
    static Object endingMonitor = new Object();

    // tested threads list
    static em05t002Thread thread = null;

    // run debuggee
    public int runIt(String argv[], PrintStream out) {
        argHandler = new ArgumentHandler(argv);
        log = new Log(out, argHandler);
        timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds

        // create threads list
        thread = new em05t002Thread();

        // testing sync
        log.display("Testing sync: thread created");
        status = checkStatus(status);

        // run thread
        log.display("Run tested thread");
        try {
            thread.start();
            thread.join();
        } catch (InterruptedException e) {
            throw new Failure(e);
        }

        // give compilations a chance to finish
        try { Thread.sleep(500); } catch (InterruptedException e) {}

        // testing sync
        log.display("Testing sync: thread finished");
        status = checkStatus(status);

        return status;
    }
}

/* =================================================================== */

// tested threads
class em05t002Thread extends Thread {
    public void run() {
        // invoke methods in a loop to provoke compilation
        for (int i = 0; i < 100; i++) {
            javaMethod(i);
            nativeMethod(i);
        }
    }

    public int javaMethod(int i) {
        int k = 0;
        for (int j = 0; j < i; j++) {
            k += (i - j);
        }
        return k;
    }

    public native int nativeMethod(int i);
}