/*

 * Copyright (c) 2015, 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

 * @library / /testlibrary

 * @compile ../common/CompilerToVMHelper.java

 * @build compiler.jvmci.common.JVMCIHelpers

 *     compiler.jvmci.events.JvmciNotifyInstallEventTest

 * @run main jdk.test.lib.FileInstaller ../common/services/ ./META-INF/services/

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

 *     ./META-INF/services/jdk.vm.ci.hotspot.HotSpotVMEventListener

 * @run main ClassFileInstaller

 *     compiler.jvmci.common.JVMCIHelpers$EmptyHotspotCompiler

 *     compiler.jvmci.common.JVMCIHelpers$EmptyCompilerFactory

 *     compiler.jvmci.events.JvmciNotifyInstallEventTest

 *     compiler.jvmci.common.CTVMUtilities

 *     compiler.jvmci.common.testcases.SimpleClass

 *     jdk.vm.ci.hotspot.CompilerToVMHelper

 *     jdk.test.lib.Asserts

 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

 *     -Djvmci.compiler=EmptyCompiler -Xbootclasspath/a:. -Xmixed

 *     -XX:+UseJVMCICompiler -XX:-BootstrapJVMCI

 *     -Dcompiler.jvmci.events.JvmciNotifyInstallEventTest.noevent=false

 *     compiler.jvmci.events.JvmciNotifyInstallEventTest

 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-EnableJVMCI

 *     -Djvmci.compiler=EmptyCompiler -Xbootclasspath/a:. -Xmixed

 *     -Dcompiler.jvmci.events.JvmciNotifyInstallEventTest.noevent=true

 *     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 java.lang.reflect.Method;

import jdk.vm.ci.hotspot.HotSpotVMEventListener;

import jdk.vm.ci.code.CompilationResult;

import jdk.vm.ci.code.InstalledCode;

import jdk.vm.ci.hotspot.HotSpotCodeCacheProvider;

import jdk.vm.ci.hotspot.HotSpotCompilationRequest;

import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;

import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;

public class JvmciNotifyInstallEventTest implements HotSpotVMEventListener {

    private static final String METHOD_NAME = "testMethod";

    private static final boolean IS_POSITIVE = !Boolean.getBoolean(

            "compiler.jvmci.events.JvmciNotifyInstallEventTest.noevent");

    private static volatile int gotInstallNotification = 0;

    public static void main(String args[]) {

        new JvmciNotifyInstallEventTest().runTest();

    }

    private void runTest() {

        if (gotInstallNotification != 0) {

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

        }

        HotSpotCodeCacheProvider codeCache = null;

        try {

            codeCache = (HotSpotCodeCacheProvider) HotSpotJVMCIRuntime.runtime()

                    .getHostJVMCIBackend().getCodeCache();

        } catch (InternalError ie) {

            if (IS_POSITIVE) {

                throw new AssertionError(

                        "Got unexpected InternalError trying to get code cache",

                        ie);

            }

            // passed

            return;

        }

        Asserts.assertTrue(IS_POSITIVE,

                    "Haven't caught InternalError in negative case");

        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);

        CompilationResult compResult = new CompilationResult(METHOD_NAME);

        HotSpotCompilationRequest compRequest = new HotSpotCompilationRequest(method, -1, 0L);

        // to pass sanity check of default -1

        compResult.setTotalFrameSize(0);

        compResult.close();

        codeCache.installCode(compRequest, compResult, /* 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(compRequest, compResult, /* installedCode = */ null, /* speculationLog = */ null,

                /* isDefault = */ false);

        Asserts.assertEQ(gotInstallNotification, 2,

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

    }

    @Override

    public void notifyInstall(HotSpotCodeCacheProvider hotSpotCodeCacheProvider,

            InstalledCode installedCode, CompilationResult compResult) {

        gotInstallNotification++;

    }

}