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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * 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).

 *

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 * 2 along with this work; if not, write to the Free Software Foundation,

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package jdk.jfr.event.runtime;

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

import java.nio.file.Paths;

import java.time.Duration;

import jdk.jfr.Recording;

import jdk.jfr.consumer.RecordedEvent;

import jdk.test.lib.jfr.EventNames;

import jdk.test.lib.jfr.Events;

/*

 * @test

 * @bug 8058552

 * @requires vm.gc == "G1" | vm.gc == null

 * @key jfr

 * @summary Test checks that flags of type size_t are being sent to the jfr

 * @library /test/lib

 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseG1GC -XX:+UseTLAB -XX:MinTLABSize=3k -XX:OldSize=30m -XX:YoungPLABSize=3k -XX:MaxDirectMemorySize=5M  jdk.jfr.event.runtime.TestSizeTFlags

 */

public class TestSizeTFlags {

    private static final String EVENT_NAME = EventNames.UnsignedLongFlag;

    private static final int NUMBER_OF_FLAGS_TO_CHECK = 4;

    private static final long MIN_TLAB_SIZE_FLAG_VALUE = 3*1024L;

    private static final long OLD_SIZE_FLAG_VALUE = 30*1024*1024L;

    private static final long YOUNG_PLAB_SIZE_FLAG_VALUE = 3*1024L;

    private static final long MAX_DIRECT_MEMORY_SIZE_FLAG_VALUE = 5*1024*1024L;

    // Test run java with some of the flags of type size_t.

    // Goals are

    //  - to check that flags are reported to the jfr;

    //  - to make sure values are as expected.

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

        final boolean[] flagsFoundWithExpectedValue = new boolean[NUMBER_OF_FLAGS_TO_CHECK];

        Recording recording = null;

        try {

            recording = new Recording();

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

            recording.start();

            recording.stop();

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

                final String recordedFlagName = Events.assertField(event, "name").getValue();

                final long value = Events.assertField(event, "value").getValue();

                switch (recordedFlagName) {

                    case "MinTLABSize": {

                        flagsFoundWithExpectedValue[0] = MIN_TLAB_SIZE_FLAG_VALUE == value;

                        continue;

                    }

                    case "OldSize": {

                        flagsFoundWithExpectedValue[1] = OLD_SIZE_FLAG_VALUE == value;

                        continue;

                    }

                    case "YoungPLABSize": {

                        flagsFoundWithExpectedValue[2] = YOUNG_PLAB_SIZE_FLAG_VALUE == value;

                        continue;

                    }

                    case "MaxDirectMemorySize": {

                        flagsFoundWithExpectedValue[3] = MAX_DIRECT_MEMORY_SIZE_FLAG_VALUE == value;

                        continue;

                    }

                    default: {

                        continue;

                    }

                }

            }

            for (int i = 0; i < flagsFoundWithExpectedValue.length; ++i) {

                assertTrue(flagsFoundWithExpectedValue[i], "Flag not found or value error!");

            }

        } catch (Throwable e) {

            if (recording != null) {

                recording.dump(Paths.get("failed.jfr"));

            }

            throw e;

        } finally {

            if (recording != null) {

                recording.close();

            }

        }

    }

}