1 /*

     2  * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

    21  * questions.

    22  */

    23 

    24 

    25 /*

    26  * @test

    27  *

    28  * @summary converted from VM Testbase metaspace/shrink_grow/ShrinkGrowMultiJVM.

    29  * VM Testbase keywords: [nonconcurrent]

    30  *

    31  * @library /vmTestbase /test/lib

    32  * @run driver jdk.test.lib.FileInstaller . .

    33  * @build metaspace.shrink_grow.ShrinkGrowMultiJVM.ShrinkGrowMultiJVM

    34  * @run driver metaspace.shrink_grow.ShrinkGrowMultiJVM.ShrinkGrowMultiJVM

    35  */

    36 

    37 package metaspace.shrink_grow.ShrinkGrowMultiJVM;

    38 

    39 import jdk.test.lib.Utils;

    40 

    41 import java.io.IOException;

    42 import java.io.InputStream;

    43 import java.io.OutputStream;

    44 import java.nio.file.Paths;

    45 import java.util.ArrayList;

    46 import java.util.List;

    47 

    48 /**

    49  * This test starts several JVMs and run ShrinkGrow metaspace test.

    50  *

    51  * It expected that all the parameters on start new processes are given

    52  * in the command line.

    53  */

    54 public class ShrinkGrowMultiJVM {

    55     private static final String[] TEST_ARGS = {

    56             Paths.get(Utils.TEST_JDK)

    57                  .resolve("bin")

    58                  .resolve("java")

    59                  .toAbsolutePath()

    60                  .toString(),

    61             "-Xlog:gc:gc_$i.log", // LOG_GC_ARG_INDEX

    62             "-XX:MetaspaceSize=10m",

    63             "-XX:MaxMetaspaceSize=20m",

    64             "-cp",

    65             Utils.TEST_CLASS_PATH

    66     };

    67     private static final int LOG_GC_ARG_INDEX = 1;

    68     public static void main(String argv[]) {

    69         String[] testJavaOpts = Utils.getTestJavaOpts();

    70         String[] args = new String[TEST_ARGS.length + testJavaOpts.length + 2];

    71         System.arraycopy(TEST_ARGS, 0, args, 0, TEST_ARGS.length);

    72         System.arraycopy(testJavaOpts, 0, args, TEST_ARGS.length, testJavaOpts.length);

    73         args[args.length - 2] = metaspace.shrink_grow.ShrinkGrowTest.ShrinkGrowTest.class.getCanonicalName();

    74         args[args.length - 1] = "jvm#$i";

    75 

    76         for (int i = 0; i < args.length; ++i) {

    77             System.out.println("%arg #" + i + ": " + args[i]);

    78         }

    79 

    80         List<Process> list = new ArrayList<>();

    81         for (int i = 0; i < 5; i++) {

    82             // will be used as jvm id

    83             args[args.length - 1] = "jvm#" + i;

    84             args[LOG_GC_ARG_INDEX] = "-Xlog:gc:gc_" + i + ".log";

    85             ProcessBuilder pb = new ProcessBuilder(args);

    86             try {

    87                 Process p = pb.start();

    88                 // Redirect.INHERIT doesn't work w/ @run driver

    89                 new Thread(() -> copy(p.getInputStream(), System.out)).start();

    90                 new Thread(() -> copy(p.getErrorStream(), System.out)).start();

    91                 list.add(p);

    92                 System.out.println("=== process #" + i + " started");

    93             } catch (IOException e) {

    94                 throw new Error("Failed to start process " + i, e);

    95             }

    96         }

    97         int failedCount = 0;

    98         for (int i = 0; i < list.size(); i++) {

    99             Process p = list.get(i);

   100             try {

   101                 int exitCode = p.waitFor();

   102                 if (exitCode != 0) {

   103                     failedCount++;

   104                     System.out.println("=== process #" + i + " exitCode=" + exitCode);

   105                 }

   106             } catch (InterruptedException e) {

   107                 failedCount++;

   108                 System.out.println("=== process #" + i + " waitFor failed");

   109                 e.printStackTrace(System.out);

   110             }

   111         }

   112         if (failedCount != 0) {

   113             throw new AssertionError(failedCount + " out of " + list.size() + " tests failed");

   114         }

   115     }

   116 

   117     private static void copy(InputStream is, OutputStream os) {

   118         byte[] buffer = new byte[1024];

   119         int n;

   120         try (InputStream close = is) {

   121             while ((n = is.read(buffer)) != -1) {

   122                 os.write(buffer, 0, n);

   123             }

   124             os.flush();

   125         } catch (IOException e) {

   126             e.printStackTrace();

   127         }

   128     }

   129 }