/*

 * Copyright (c) 2019, SAP SE. 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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 */

import jdk.test.lib.*;

import jdk.test.lib.process.*;

/*

 * @test TestAbortVMOnSafepointTimeout

 * @summary Check if VM can kill thread which doesn't reach safepoint.

 * @bug 8219584

 * @requires vm.compiler2.enabled

 * @library /test/lib

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

 *          java.management

 */

public class TestAbortVMOnSafepointTimeout {

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

        if (args.length > 0) {

            int result = test_loop(3);

            System.out.println("This message would occur after some time with result " + result);

            return;

        }

        testWith(500, 500);

    }

    static int test_loop(int x) {

        int sum = 0;

        if (x != 0) {

            // Long running loop without safepoint.

            for (int y = 1; y < Integer.MAX_VALUE; ++y) {

                if (y % x == 0) ++sum;

            }

        }

        return sum;

    }

    public static void testWith(int sfpt_interval, int timeout_delay) throws Exception {

        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

                "-XX:+UnlockDiagnosticVMOptions",

                "-XX:+SafepointTimeout",

                "-XX:+SafepointALot",

                "-XX:+AbortVMOnSafepointTimeout",

                "-XX:SafepointTimeoutDelay=" + timeout_delay,

                "-XX:GuaranteedSafepointInterval=" + sfpt_interval,

                "-XX:-TieredCompilation",

                "-XX:-UseCountedLoopSafepoints",

                "-XX:LoopStripMiningIter=0",

                "-XX:LoopUnrollLimit=0",

                "-XX:CompileCommand=compileonly,TestAbortVMOnSafepointTimeout::test_loop",

                "-Xcomp",

                "-XX:-CreateCoredumpOnCrash",

                "-Xms64m",

                "TestAbortVMOnSafepointTimeout",

                "runTestLoop"

        );

        OutputAnalyzer output = new OutputAnalyzer(pb.start());

        if (Platform.isWindows()) {

            output.shouldMatch("Safepoint sync time longer than");

        } else {

            output.shouldMatch("SIGILL");

            if (Platform.isLinux()) {

                output.shouldMatch("(sent by kill)");

            }

            output.shouldMatch("TestAbortVMOnSafepointTimeout.test_loop");

        }

        output.shouldNotHaveExitValue(0);

    }

}