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 8044773 26 * @summary Unit test for ServerSocketChannel setOption/getOption/options 27 * methods. 28 * @run main SocketOptionTests 29 * @run main/othervm --limit-modules=java.base SocketOptionTests 30 */ 31 32 import java.nio.*; 33 import java.nio.channels.*; 34 import java.net.*; 35 import java.io.IOException; 36 import java.util.*; 37 import static java.net.StandardSocketOptions.*; 38 39 public class SocketOptionTests { 40 41 static void checkOption(ServerSocketChannel ssc, SocketOption name, Object expectedValue) 42 throws IOException 43 { 44 Object value = ssc.getOption(name); 45 if (!value.equals(expectedValue)) 46 throw new RuntimeException("value not as expected"); 47 } 48 49 public static void main(String[] args) throws IOException { 50 ServerSocketChannel ssc = ServerSocketChannel.open(); 51 52 // check supported options 53 Set<SocketOption<?>> options = ssc.supportedOptions(); 54 boolean reuseport = options.contains(SO_REUSEPORT); 55 if (!options.contains(SO_REUSEADDR)) 56 throw new RuntimeException("SO_REUSEADDR should be supported"); 57 if (!options.contains(SO_REUSEPORT) && reuseport) 58 throw new RuntimeException("SO_REUSEPORT should be supported"); 59 if (!options.contains(SO_RCVBUF)) 60 throw new RuntimeException("SO_RCVBUF should be supported"); 61 62 // allowed to change when not bound 63 ssc.setOption(SO_RCVBUF, 256*1024); // can't check 64 int before = ssc.getOption(SO_RCVBUF); 65 int after = ssc.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF); 66 if (after < before) 67 throw new RuntimeException("setOption caused SO_RCVBUF to decrease"); 68 ssc.setOption(SO_REUSEADDR, true); 69 checkOption(ssc, SO_REUSEADDR, true); 70 ssc.setOption(SO_REUSEADDR, false); 71 checkOption(ssc, SO_REUSEADDR, false); 72 if (reuseport) { 73 ssc.setOption(SO_REUSEPORT, true); 74 checkOption(ssc, SO_REUSEPORT, true); 75 ssc.setOption(SO_REUSEPORT, false); 76 checkOption(ssc, SO_REUSEPORT, false); 77 } 78 79 // NullPointerException 80 try { 81 ssc.setOption(null, "value"); 82 throw new RuntimeException("NullPointerException not thrown"); 83 } catch (NullPointerException x) { 84 } 85 try { 86 ssc.getOption(null); 87 throw new RuntimeException("NullPointerException not thrown"); 88 } catch (NullPointerException x) { 89 } 90 91 // ClosedChannelException 92 ssc.close(); 93 try { 94 ssc.setOption(SO_REUSEADDR, true); 95 throw new RuntimeException("ClosedChannelException not thrown"); 96 } catch (ClosedChannelException x) { 97 } 98 } 99 }