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 * 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.

 *

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/**

 * @test

 * @summary Verifies NotifyFramePop request is cleared if JVMTI_EVENT_FRAME_POP is disabled

 * @compile NotifyFramePopTest.java

 * @run main/othervm/native -agentlib:NotifyFramePopTest NotifyFramePopTest

 */

public class NotifyFramePopTest {

    static {

        try {

            System.loadLibrary("NotifyFramePopTest");

        } catch (UnsatisfiedLinkError ex) {

            System.err.println("Could not load NotifyFramePopTest library");

            System.err.println("java.library.path:"

                + System.getProperty("java.library.path"));

            throw ex;

        }

    }

    public static void main(String args[]) {

        if (!canGenerateFramePopEvents()) {

        }

        // Sanity testing that FRAME_POP works.

        test("sanity", true, () -> {

            setFramePopNotificationMode(true);

            notifyFramePop(null);

        });

        // Request notification and then disable FRAME_POP event notification.

        // This should not prevent the notification for the frame being cleared

        // when we return from the method.

        test("requestAndDisable", false, () -> {

            setFramePopNotificationMode(true);

            notifyFramePop(null);

            setFramePopNotificationMode(false);

        });

        // Ensure there is no pending event

        test("ensureCleared", false, () -> {

            setFramePopNotificationMode(true);

        });

        log("Test PASSED");

    }

    private native static boolean canGenerateFramePopEvents();

    private native static void setFramePopNotificationMode(boolean enabled);

    private native static void notifyFramePop(Thread thread);

    private native static boolean framePopReceived();

    private static void log(String msg) {

        System.out.println(msg);

    }

    private interface Test {

        void test();

    }

    private static void test(String name, boolean framePopExpected, Test theTest) {

        log("test: " + name);

        theTest.test();

        boolean actual = framePopReceived();

        if (framePopExpected != actual) {

            throw new RuntimeException("unexpected notification:"

                    + " FramePop expected: " + (framePopExpected ? "yes" : "no")

                    + ", actually received: " + (actual ? "yes" : "no"));

        }

        log("  - OK (" + (actual ? "received" : "NOT received") + ")");

    }

}