/*

 * Copyright (c) 2014, 2016, 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

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 * questions.

 */

/*

 * @test PeakUsageTest

 * @library /testlibrary /test/lib /

 * @modules java.base/jdk.internal.misc

 *          java.management

 *

 * @build ompiler.codecache.jmx.PeakUsageTest

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox

 *     sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions

 *     -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,null::*

 *     -XX:+SegmentedCodeCache

 *     compiler.codecache.jmx.PeakUsageTest

 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions

 *     -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,null::*

 *     -XX:-SegmentedCodeCache

 *     compiler.codecache.jmx.PeakUsageTest

 * @summary testing of getPeakUsage() and resetPeakUsage for

 *     segmented code cache

 */

package compiler.codecache.jmx;

import sun.hotspot.code.BlobType;

import java.lang.management.MemoryPoolMXBean;

public class PeakUsageTest {

    private final BlobType btype;

    public PeakUsageTest(BlobType btype) {

        this.btype = btype;

    }

    public static void main(String[] args) {

        for (BlobType btype : BlobType.getAvailable()) {

            new PeakUsageTest(btype).runTest();

        }

    }

    protected void runTest() {

        MemoryPoolMXBean bean = btype.getMemoryPool();

        bean.resetPeakUsage();

        long addr = CodeCacheUtils.WB.allocateCodeBlob(

                CodeCacheUtils.ALLOCATION_SIZE, btype.id);

        try {

                    "Peak usage does not match usage after allocation for "

                    + bean.getName());

        } finally {

            if (addr != 0) {

                CodeCacheUtils.WB.freeCodeBlob(addr);

            }

        }

        bean.resetPeakUsage();

                "Code cache peak usage is not equal to usage after reset for "

                + bean.getName());

        long addr2 = CodeCacheUtils.WB.allocateCodeBlob(

                CodeCacheUtils.ALLOCATION_SIZE, btype.id);

        try {

                    "Code cache peak usage is not equal to usage after fresh "

                    + "allocation for " + bean.getName());

        } finally {

            if (addr2 != 0) {

                CodeCacheUtils.WB.freeCodeBlob(addr2);

            }

        }

        System.out.printf("INFO: Scenario finished successfully for %s%n",

                bean.getName());

    }

}