/*

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * @test

 * @bug 8031320

 *          rtm support when VM supports rtm locking.

 * @library /test/lib /

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

 *          java.management

 * @build sun.hotspot.WhiteBox

 * @run driver ClassFileInstaller sun.hotspot.WhiteBox

 *                                sun.hotspot.WhiteBox$WhiteBoxPermission

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

 *                   -XX:+WhiteBoxAPI

 *                   compiler.rtm.cli.TestUseRTMForStackLocksOptionOnSupportedConfig

 */

package compiler.rtm.cli;

import jdk.test.lib.process.ExitCode;

import jdk.test.lib.cli.CommandLineOptionTest;

public class TestUseRTMForStackLocksOptionOnSupportedConfig {

    private static final String DEFAULT_VALUE = "false";

    public void runTestCases() throws Throwable {

        String errorMessage

                = CommandLineOptionTest.getExperimentalOptionErrorMessage(

                "UseRTMForStackLocks");

        String warningMessage

                = RTMGenericCommandLineOptionTest.RTM_FOR_STACK_LOCKS_WARNING;

        String shouldFailMessage = " VM option 'UseRTMForStackLocks' is "

                + "experimental%nJVM startup should fail without "

                + "-XX:+UnlockExperimentalVMOptions flag";

        CommandLineOptionTest.verifySameJVMStartup(

                new String[] { errorMessage }, null, shouldFailMessage,

                shouldFailMessage + "%nError message expected", ExitCode.FAIL,

                "-XX:+UseRTMForStackLocks");

        String shouldPassMessage = " VM option 'UseRTMForStackLocks'"

                + " is experimental%nJVM startup should pass with "

                + "-XX:+UnlockExperimentalVMOptions flag";

        // verify that we get a warning when trying to use rtm for stack

        // lock, but not using rtm locking.

        CommandLineOptionTest.verifySameJVMStartup(

                new String[] { warningMessage }, null, shouldPassMessage,

                "There should be warning when trying to use rtm for stack "

                        + "lock, but not using rtm locking", ExitCode.OK,

                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,

                "-XX:+UseRTMForStackLocks",

                "-XX:-UseRTMLocking");

        // verify that we don't get a warning when no using rtm for stack

        // lock and not using rtm locking.

        CommandLineOptionTest.verifySameJVMStartup(null,

                new String[] { warningMessage }, shouldPassMessage,

                "There should not be any warning when use both "

                        + "-XX:-UseRTMForStackLocks and -XX:-UseRTMLocking "

                        + "flags",

                ExitCode.OK,

                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,

                "-XX:-UseRTMForStackLocks",

                "-XX:-UseRTMLocking");

        // verify that we don't get a warning when using rtm for stack

        // lock and using rtm locking.

        CommandLineOptionTest.verifySameJVMStartup(null,

                new String[] { warningMessage }, shouldPassMessage,

                "There should not be any warning when use both "

                        + "-XX:+UseRTMForStackLocks and -XX:+UseRTMLocking"

                        + " flags",

                ExitCode.OK,

                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,

                "-XX:+UseRTMForStackLocks",

                "-XX:+UseRTMLocking");

        // verify that default value if false

        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",

                TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,

                "Default value of option 'UseRTMForStackLocks' should be false",

                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS);

        // verify that default value is false even with +UseRTMLocking

        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",

                TestUseRTMForStackLocksOptionOnSupportedConfig.DEFAULT_VALUE,

                "Default value of option 'UseRTMForStackLocks' should be false",

                CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,

                "-XX:+UseRTMLocking");

        // verify that we can turn the option on

        CommandLineOptionTest.verifyOptionValueForSameVM("UseRTMForStackLocks",

                        "true", "Value of option 'UseRTMForStackLocks' should "

                                + "be able to be set as 'true' when both "

                                + "-XX:+UseRTMForStackLocks and "

                                + "-XX:+UseRTMLocking flags used",

                        CommandLineOptionTest.UNLOCK_EXPERIMENTAL_VM_OPTIONS,

                        "-XX:+UseRTMLocking", "-XX:+UseRTMForStackLocks");

    }

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

        new TestUseRTMForStackLocksOptionOnSupportedConfig().runTestCases();

    }

}