/*

 * Copyright (c) 2015, 2019, 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.

 */

/*

 * @test

 * @bug 8136421

 * @requires vm.jvmci & !vm.graal.enabled & vm.compMode == "Xmixed"

 * @library / /test/lib

 * @library ../common/patches

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

 * @modules java.base/jdk.internal.org.objectweb.asm

 *          java.base/jdk.internal.org.objectweb.asm.tree

 *          jdk.internal.vm.ci/jdk.vm.ci.hotspot

 *          jdk.internal.vm.ci/jdk.vm.ci.code

 *          jdk.internal.vm.ci/jdk.vm.ci.code.site

 *          jdk.internal.vm.ci/jdk.vm.ci.meta

 *          jdk.internal.vm.ci/jdk.vm.ci.runtime

 *          jdk.internal.vm.ci/jdk.vm.ci.services

 *

 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper

 * @build compiler.jvmci.common.JVMCIHelpers

 * @run driver jdk.test.lib.FileInstaller ./JvmciNotifyInstallEventTest.config

 *     ./META-INF/services/jdk.vm.ci.services.JVMCIServiceLocator

 * @run driver ClassFileInstaller

 *      compiler.jvmci.common.JVMCIHelpers$EmptyHotspotCompiler

 *      compiler.jvmci.common.JVMCIHelpers$EmptyCompilerFactory

 *      compiler.jvmci.common.JVMCIHelpers$EmptyCompilationRequestResult

 *      compiler.jvmci.common.JVMCIHelpers$EmptyVMEventListener

 * @run main/othervm -XX:+UnlockExperimentalVMOptions

 *     -Djvmci.Compiler=EmptyCompiler -Xbootclasspath/a:.

 *     -XX:+UseJVMCICompiler -XX:-BootstrapJVMCI

 *     compiler.jvmci.events.JvmciNotifyInstallEventTest

 * @run main/othervm -XX:+UnlockExperimentalVMOptions

 *     -Djvmci.Compiler=EmptyCompiler -Xbootclasspath/a:.

 *     -XX:+UseJVMCICompiler -XX:-BootstrapJVMCI -XX:JVMCINMethodSizeLimit=0

 *     compiler.jvmci.events.JvmciNotifyInstallEventTest

 */

package compiler.jvmci.events;

import compiler.jvmci.common.CTVMUtilities;

import compiler.jvmci.common.testcases.SimpleClass;

import jdk.test.lib.Asserts;

import jdk.test.lib.Utils;

import jdk.vm.ci.services.JVMCIServiceLocator;

import jdk.vm.ci.code.CompiledCode;

import jdk.vm.ci.code.InstalledCode;

import jdk.vm.ci.code.site.DataPatch;

import jdk.vm.ci.code.site.Site;

import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;

import jdk.vm.ci.hotspot.HotSpotCompiledCode;

import jdk.vm.ci.hotspot.HotSpotCompiledCode.Comment;

import jdk.vm.ci.hotspot.HotSpotCompiledNmethod;

import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;

import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;

import jdk.vm.ci.hotspot.HotSpotVMEventListener;

import jdk.vm.ci.meta.Assumptions.Assumption;

import jdk.vm.ci.meta.ResolvedJavaMethod;

import java.lang.reflect.Method;

public class JvmciNotifyInstallEventTest extends JVMCIServiceLocator implements HotSpotVMEventListener {

    private static final String METHOD_NAME = "testMethod";

    private static volatile int gotInstallNotification = 0;

    public static void main(String args[]) {

        new JvmciNotifyInstallEventTest().runTest();

    }

    @Override

    public <S> S getProvider(Class<S> service) {

        if (service == HotSpotVMEventListener.class) {

            return service.cast(this);

        }

        return null;

    }

    private void runTest() {

        if (gotInstallNotification != 0) {

            throw new Error("Got install notification before test actions");

        }

        HotSpotCodeCacheProvider codeCache;

        try {

            codeCache = (HotSpotCodeCacheProvider) HotSpotJVMCIRuntime.runtime()

                    .getHostJVMCIBackend().getCodeCache();

        } catch (InternalError ie) {

            // passed

            return;

        }

        Method testMethod;

        try {

            testMethod = SimpleClass.class.getDeclaredMethod(METHOD_NAME);

        } catch (NoSuchMethodException e) {

            throw new Error("TEST BUG: Can't find " + METHOD_NAME, e);

        }

        HotSpotResolvedJavaMethod method = CTVMUtilities

                .getResolvedMethod(SimpleClass.class, testMethod);

        HotSpotCompiledCode compiledCode = new HotSpotCompiledNmethod(METHOD_NAME,

                new byte[0], 0, new Site[0], new Assumption[0],

                new ResolvedJavaMethod[]{method}, new Comment[0], new byte[0],

                16, new DataPatch[0], false, 0, null,

                method, 0, 1, 0L, false);

        codeCache.installCode(method, compiledCode, /* installedCode = */ null,

                /* speculationLog = */ null, /* isDefault = */ false);

        Asserts.assertEQ(gotInstallNotification, 1,

                "Got unexpected event count after 1st install attempt");

        // since "empty" compilation result is ok, a second attempt should be ok

        codeCache.installCode(method, compiledCode, /* installedCode = */ null,

                /* speculationLog = */ null, /* isDefault = */ false);

        Asserts.assertEQ(gotInstallNotification, 2,

                "Got unexpected event count after 2nd install attempt");

        // and an incorrect cases

        Utils.runAndCheckException(() -> {

            codeCache.installCode(method, null, null, null, true);

        }, NullPointerException.class);

        Asserts.assertEQ(gotInstallNotification, 2,

                "Got unexpected event count after 3rd install attempt");

        Utils.runAndCheckException(() -> {

            codeCache.installCode(null, null, null, null, true);

        }, NullPointerException.class);

        Asserts.assertEQ(gotInstallNotification, 2,

                "Got unexpected event count after 4th install attempt");

    }

    @Override

    public void notifyInstall(HotSpotCodeCacheProvider hotSpotCodeCacheProvider,

            InstalledCode installedCode, CompiledCode compiledCode) {

        gotInstallNotification++;

    }

}