1/*
2 * Copyright (c) 2016, 2017, 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 * @test
26 * @summary Checks that the jshdb debugd utility sucessfully starts
27 *          and tries to attach to a running process
28 * @modules java.base/jdk.internal.misc
29 * @library /test/lib
30 *
31 * @run main/othervm SADebugDTest
32 */
33import java.io.File;
34import java.util.concurrent.CountDownLatch;
35import java.io.InputStreamReader;
36import java.io.BufferedReader;
37import java.io.Reader;
38import java.util.concurrent.TimeUnit;
39import java.util.function.Predicate;
40import static jdk.test.lib.Asserts.assertTrue;
41import static jdk.test.lib.Platform.shouldSAAttach;
42import static jdk.test.lib.process.ProcessTools.startProcess;
43
44public class SADebugDTest {
45
46    private static final String GOLDEN = "Attaching to process ID %d and starting RMI services, please wait...";
47
48    private static final String JAVA_HOME = (System.getProperty("test.jdk") != null)
49            ? System.getProperty("test.jdk") : System.getProperty("java.home");
50
51    private static final String JAVA_BIN_DIR
52            = JAVA_HOME + File.separator + "bin" + File.separator;
53
54    private static final String JHSDB = JAVA_BIN_DIR + "jhsdb";
55
56    public static void main(String[] args) throws Exception {
57
58        if (!shouldSAAttach()) {
59            log("Not possible to attach the SA. Skipping the test");
60            return;
61        }
62
63        long ourPid = ProcessHandle.current().pid();
64
65        // The string we are expecting in the debugd ouput
66        String golden = String.format(GOLDEN, ourPid);
67
68        // We are going to run 'jhsdb debugd <our pid>'
69        // The startProcess will block untl the 'golden' string appears in either process' stdout or stderr
70        // In case of timeout startProcess kills the debugd process
71        ProcessBuilder pb = new ProcessBuilder();
72        pb.command(JHSDB, "debugd", String.valueOf(ourPid));
73        Process debugd = startProcess("debugd", pb, null, (line) -> line.trim().contains(golden), 0, TimeUnit.SECONDS);
74
75        // If we are here, this means we have received the golden line and the test has passed
76        // The debugd remains running, we have to kill it
77        debugd.destroy();
78
79    }
80
81    private static void log(String string) {
82        System.out.println(string);
83    }
84
85}
86