| /* |
| * Copyright (c) 2007, 2011, 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. |
| */ |
| |
| /* @test |
| * @bug 4640544 8044773 |
| * @summary Unit test to check SocketChannel setOption/getOption/options |
| * methods. |
| * @run main SocketOptionTests |
| * @run main/othervm --limit-modules=java.base SocketOptionTests |
| */ |
| |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.net.*; |
| import java.io.IOException; |
| import java.util.*; |
| import static java.net.StandardSocketOptions.*; |
| |
| public class SocketOptionTests { |
| |
| static void checkOption(SocketChannel sc, SocketOption name, Object expectedValue) |
| throws IOException |
| { |
| Object value = sc.getOption(name); |
| if (!value.equals(expectedValue)) |
| throw new RuntimeException("value not as expected"); |
| } |
| |
| public static void main(String[] args) throws IOException { |
| SocketChannel sc = SocketChannel.open(); |
| |
| // check supported options |
| Set<SocketOption<?>> options = sc.supportedOptions(); |
| List<? extends SocketOption> expected = Arrays.asList(SO_SNDBUF, SO_RCVBUF, |
| SO_KEEPALIVE, SO_REUSEADDR, SO_LINGER, TCP_NODELAY); |
| for (SocketOption opt: expected) { |
| if (!options.contains(opt)) |
| throw new RuntimeException(opt.name() + " should be supported"); |
| } |
| |
| // check specified defaults |
| int linger = sc.<Integer>getOption(SO_LINGER); |
| if (linger >= 0) |
| throw new RuntimeException("initial value of SO_LINGER should be < 0"); |
| checkOption(sc, SO_KEEPALIVE, false); |
| checkOption(sc, TCP_NODELAY, false); |
| |
| // allowed to change when not bound |
| sc.setOption(SO_KEEPALIVE, true); |
| checkOption(sc, SO_KEEPALIVE, true); |
| sc.setOption(SO_KEEPALIVE, false); |
| checkOption(sc, SO_KEEPALIVE, false); |
| sc.setOption(SO_SNDBUF, 128*1024); // can't check |
| sc.setOption(SO_RCVBUF, 256*1024); // can't check |
| int before, after; |
| before = sc.getOption(SO_SNDBUF); |
| after = sc.setOption(SO_SNDBUF, Integer.MAX_VALUE).getOption(SO_SNDBUF); |
| if (after < before) |
| throw new RuntimeException("setOption caused SO_SNDBUF to decrease"); |
| before = sc.getOption(SO_RCVBUF); |
| after = sc.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF); |
| if (after < before) |
| throw new RuntimeException("setOption caused SO_RCVBUF to decrease"); |
| sc.setOption(SO_REUSEADDR, true); |
| checkOption(sc, SO_REUSEADDR, true); |
| sc.setOption(SO_REUSEADDR, false); |
| checkOption(sc, SO_REUSEADDR, false); |
| sc.setOption(SO_LINGER, 10); |
| linger = sc.<Integer>getOption(SO_LINGER); |
| if (linger < 1) |
| throw new RuntimeException("expected linger to be enabled"); |
| sc.setOption(SO_LINGER, -1); |
| linger = sc.<Integer>getOption(SO_LINGER); |
| if (linger >= 0) |
| throw new RuntimeException("expected linger to be disabled"); |
| sc.setOption(TCP_NODELAY, true); |
| checkOption(sc, TCP_NODELAY, true); |
| sc.setOption(TCP_NODELAY, false); // can't check |
| |
| // bind socket |
| sc.bind(new InetSocketAddress(0)); |
| |
| // allow to change when bound |
| sc.setOption(SO_KEEPALIVE, true); |
| checkOption(sc, SO_KEEPALIVE, true); |
| sc.setOption(SO_KEEPALIVE, false); |
| checkOption(sc, SO_KEEPALIVE, false); |
| |
| sc.setOption(SO_LINGER, 10); |
| linger = sc.<Integer>getOption(SO_LINGER); |
| if (linger < 1) |
| throw new RuntimeException("expected linger to be enabled"); |
| sc.setOption(SO_LINGER, -1); |
| linger = sc.<Integer>getOption(SO_LINGER); |
| if (linger >= 0) |
| throw new RuntimeException("expected linger to be disabled"); |
| sc.setOption(TCP_NODELAY, true); // can't check |
| sc.setOption(TCP_NODELAY, false); // can't check |
| |
| // NullPointerException |
| try { |
| sc.setOption(null, "value"); |
| throw new RuntimeException("NullPointerException not thrown"); |
| } catch (NullPointerException x) { |
| } |
| try { |
| sc.getOption(null); |
| throw new RuntimeException("NullPointerException not thrown"); |
| } catch (NullPointerException x) { |
| } |
| |
| // ClosedChannelException |
| sc.close(); |
| try { |
| sc.setOption(TCP_NODELAY, true); |
| throw new RuntimeException("ClosedChannelException not thrown"); |
| } catch (ClosedChannelException x) { |
| } |
| } |
| } |