1 /*
   2  * Copyright (c) 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /*
  27  * @test
  28  * @bug 8195160
  29  * @summary Test to check if rsocket is available
  30  * @requires (os.family == "linux")
  31  * @library /test/lib
  32  * @build jdk.test.lib.Platform
  33  * @run main/native RsocketTest
  34  */
  35 
  36 import java.io.IOException;
  37 import java.net.SocketException;
  38 import java.net.StandardProtocolFamily;
  39 
  40 public class RsocketTest {
  41     private static boolean libInstalled;
  42     private static boolean supported;
  43     private static boolean checked;
  44 
  45     static {
  46         System.loadLibrary("RsocketTest");
  47     }
  48 
  49     public static boolean isRsocketAvailable()
  50             throws IOException {
  51         if (!checked) {
  52             checked = true;
  53             supported = isRsocketAvailable0();
  54         }
  55         if (!supported) {
  56             checkUnsupportedWithParameter();
  57             checkUnsupportedNoParameter();
  58         }
  59         return supported;
  60     }
  61 
  62     static void checkUnsupportedWithParameter() throws IOException {
  63         checkThrowsUOEWithParameter(jdk.net.RdmaSockets::openSocket);
  64         checkThrowsUOEWithParameter(jdk.net.RdmaSockets::openServerSocket);
  65         checkThrowsUOEWithParameter(jdk.net.RdmaSockets::openSocketChannel);
  66         checkThrowsUOEWithParameter(
  67                 jdk.net.RdmaSockets::openServerSocketChannel);
  68     }
  69 
  70     static void checkUnsupportedNoParameter() throws IOException {
  71         checkThrowsUOENoParameter(jdk.net.RdmaSockets::openSelector);
  72     }
  73 
  74     static void checkThrowsUOEWithParameter(
  75             ThrowingRunnableWithParameter runnable) throws IOException {
  76         try {
  77             runnable.run(StandardProtocolFamily.INET);
  78             runnable.run(StandardProtocolFamily.INET6);
  79             if (!libInstalled)
  80                 throw new RuntimeException("Unexpected creation");
  81         } 
  82         catch (UnsupportedOperationException | SocketException expected) { }
  83     }
  84 
  85     static void checkThrowsUOENoParameter(ThrowingRunnableNoParameter runnable)
  86             throws IOException {
  87         try {
  88             runnable.run();
  89             if (!libInstalled)
  90                 throw new RuntimeException("Unexpected creation");
  91         }
  92         catch (UnsupportedOperationException expected) { }
  93     }
  94 
  95     interface ThrowingRunnableWithParameter {
  96         void run(StandardProtocolFamily family) throws IOException;
  97     }
  98 
  99     interface ThrowingRunnableNoParameter { void run() throws IOException; }
 100 
 101     private static native boolean isRsocketAvailable0();
 102 
 103     public static void main(String[] args) throws Exception {
 104          System.out.println("testing rsocket!");
 105     }
 106 }