/*

 * Copyright (c) 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

 * @bug 8067744

 * @library /test/lib

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

 * @run main/native FPRegs

 */

import jdk.test.lib.Platform;

import jdk.test.lib.Utils;

import jdk.test.lib.process.ProcessTools;

import jdk.test.lib.process.OutputAnalyzer;

import java.io.File;

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Optional;

public class FPRegs {

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

        Path launcher = Paths.get(System.getProperty("test.nativepath"), "FPRegs" + (Platform.isWindows() ? ".exe" : ""));

        System.out.println("Launcher = " + launcher + (Files.exists(launcher) ? " (exists)" : " (not exists)"));

        Path jvmLib = findJVM();

        ProcessBuilder pb = new ProcessBuilder(launcher.toString(), jvmLib.toString());

        // bin as working directory to let Windows load dll

        pb.directory(jvmLib.getParent().getParent().toFile());

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

        outputf.shouldHaveExitValue(0);

    }

    static Path findJVM() throws IOException {

        String root = Utils.TEST_JDK;

        String lib = System.mapLibraryName("jvm");

        System.out.println("Root = " + root);

        System.out.println("Library = " + lib);

        Optional<Path> jvmLib = Files.find(new File(root).toPath(), 4, (p, attr) -> p.toFile().getName().equals(lib)).findFirst();

        Path p = null;

        if (jvmLib.isPresent()) {

            p = jvmLib.get().toRealPath();

            System.out.println("JVM = " + p);

        } else {

            System.out.println("TESTBUG: JVM not found in ");

            Files.walk(new File(root).toPath(), 4).map(Path::toString).forEach(System.out::println);

        }

        return p;

    }

}