| /* |
| * Copyright (c) 2003, 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * |
| * |
| * A collection of utility methods used by the SelectorProvider.inheritedChannel |
| * unit tests. |
| */ |
| import java.net.*; |
| import java.io.*; |
| import java.nio.channels.*; |
| import java.lang.reflect.*; |
| |
| // dependency on Sun implementation |
| import sun.nio.ch.*; |
| |
| public class Util { |
| |
| private static Object get(String className, String fieldName, Object o) throws Exception { |
| Class cl = Class.forName(className); |
| Field fld = cl.getDeclaredField(fieldName); |
| fld.setAccessible(true); |
| return fld.get(o); |
| } |
| |
| private static int fdVal(FileDescriptor fdObj) throws Exception { |
| Object fdVal = get("java.io.FileDescriptor", "fd", fdObj); |
| return ((Integer)fdVal).intValue(); |
| } |
| |
| /* |
| * Return the file descriptor underlying a given SocketChannel |
| */ |
| public static int getFD(SocketChannel sc) { |
| try { |
| Object fdObj = get("sun.nio.ch.SocketChannelImpl", "fd", sc); |
| return fdVal((FileDescriptor)fdObj); |
| } catch (Exception x) { |
| x.printStackTrace(); |
| throw new InternalError(x.getMessage()); |
| } |
| } |
| |
| /* |
| * Return the file descriptor underlying a given ServerSocketChannel |
| */ |
| public static int getFD(ServerSocketChannel ssc) { |
| try { |
| Object fdObj = get("sun.nio.ch.ServerSocketChannelImpl", "fd", ssc); |
| return fdVal((FileDescriptor)fdObj); |
| } catch (Exception x) { |
| x.printStackTrace(); |
| throw new InternalError(x.getMessage()); |
| } |
| } |
| |
| /* |
| * Return the file descriptor underlying a given DatagramChannel |
| */ |
| public static int getFD(DatagramChannel dc) { |
| try { |
| Object fdObj = get("sun.nio.ch.DatagramChannelImpl", "fd", dc); |
| return fdVal((FileDescriptor)fdObj); |
| } catch (Exception x) { |
| x.printStackTrace(); |
| throw new InternalError(x.getMessage()); |
| } |
| } |
| |
| /* |
| * Return the "java" command and any initial arguments to start the runtime |
| * in the current configuration. |
| * |
| * Typically it will return something like :- |
| * cmd[0] = "/usr/local/java/solaris-sparc/bin/java" |
| * or |
| * cmd[0] = "/usr/local/java/solaris-sparc/bin/sparcv9/java" |
| * cmd[1] = "-d64" |
| */ |
| public static String[] javaCommand() { |
| String exe = System.getProperty("java.home") + File.separator + "bin" + |
| File.separator; |
| String arch = System.getProperty("os.arch"); |
| if (arch.equals("sparcv9")) { |
| String cmd[] = new String[2]; |
| cmd[0] = exe + "sparcv9/java"; |
| cmd[1] = "-d64"; |
| return cmd; |
| } else { |
| String cmd[] = new String[1]; |
| cmd[0] = exe += "java"; |
| return cmd; |
| } |
| } |
| } |