1 /* 2 * Copyright (c) 2007, 2016, 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 /* @test 25 * @bug 4640544 26 * @summary Unit test for ServerSocketChannel setOption/getOption/options 27 * methods. 28 */ 29 30 import java.nio.*; 31 import java.nio.channels.*; 32 import java.net.*; 33 import java.io.IOException; 34 import java.util.*; 35 import static java.net.StandardSocketOptions.*; 36 37 public class SocketOptionTests { 38 39 static void checkOption(ServerSocketChannel ssc, SocketOption name, Object expectedValue) 40 throws IOException 41 { 42 Object value = ssc.getOption(name); 43 if (!value.equals(expectedValue)) 44 throw new RuntimeException("value not as expected"); 45 } 46 47 public static void main(String[] args) throws IOException { 48 ServerSocketChannel ssc = ServerSocketChannel.open(); 49 50 // check supported options 51 Set<SocketOption<?>> options = ssc.supportedOptions(); 52 boolean reuseport = options.contains(SO_REUSEPORT); 53 if (!options.contains(SO_REUSEADDR)) 54 throw new RuntimeException("SO_REUSEADDR should be supported"); 55 if (!options.contains(SO_REUSEPORT) && reuseport) 56 throw new RuntimeException("SO_REUSEPORT should be supported"); 57 if (!options.contains(SO_RCVBUF)) 58 throw new RuntimeException("SO_RCVBUF should be supported"); 59 60 // allowed to change when not bound 61 ssc.setOption(SO_RCVBUF, 256*1024); // can't check 62 int before = ssc.getOption(SO_RCVBUF); 63 int after = ssc.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF); 64 if (after < before) 65 throw new RuntimeException("setOption caused SO_RCVBUF to decrease"); 66 ssc.setOption(SO_REUSEADDR, true); 67 checkOption(ssc, SO_REUSEADDR, true); 68 ssc.setOption(SO_REUSEADDR, false); 69 checkOption(ssc, SO_REUSEADDR, false); 70 if (reuseport) { 71 ssc.setOption(SO_REUSEPORT, true); 72 checkOption(ssc, SO_REUSEPORT, true); 73 ssc.setOption(SO_REUSEPORT, false); 74 checkOption(ssc, SO_REUSEPORT, false); 75 } 76 77 // NullPointerException 78 try { 79 ssc.setOption(null, "value"); 80 throw new RuntimeException("NullPointerException not thrown"); 81 } catch (NullPointerException x) { 82 } 83 try { 84 ssc.getOption(null); 85 throw new RuntimeException("NullPointerException not thrown"); 86 } catch (NullPointerException x) { 87 } 88 89 // ClosedChannelException 90 ssc.close(); 91 try { 92 ssc.setOption(SO_REUSEADDR, true); 93 throw new RuntimeException("ClosedChannelException not thrown"); 94 } catch (ClosedChannelException x) { 95 } 96 } 97 }