| /* |
| * Copyright (c) 2007, 2016, 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 for setOption/getOption/options methods |
| * @run main SocketOptionTests |
| * @run main/othervm -Djdk.launcher.limitmods=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 <T> void checkOption(DatagramChannel dc, |
| SocketOption<T> name, |
| T expectedValue) |
| throws IOException |
| { |
| T value = dc.getOption(name); |
| if (!value.equals(expectedValue)) |
| throw new RuntimeException("value not as expected"); |
| } |
| |
| public static void main(String[] args) throws IOException { |
| DatagramChannel dc = DatagramChannel.open(); |
| |
| // check supported options |
| Set<SocketOption<?>> options = dc.supportedOptions(); |
| boolean reuseport = options.contains(SO_REUSEPORT); |
| List<? extends SocketOption<?>> expected; |
| if (reuseport) { |
| expected = Arrays.asList(SO_SNDBUF, SO_RCVBUF, |
| SO_REUSEADDR, SO_REUSEPORT, SO_BROADCAST, IP_TOS, IP_MULTICAST_IF, |
| IP_MULTICAST_TTL, IP_MULTICAST_LOOP); |
| } else { |
| expected = Arrays.asList(SO_SNDBUF, SO_RCVBUF, |
| SO_REUSEADDR, SO_BROADCAST, IP_TOS, IP_MULTICAST_IF, IP_MULTICAST_TTL, |
| IP_MULTICAST_LOOP); |
| } |
| for (SocketOption opt: expected) { |
| if (!options.contains(opt)) |
| throw new RuntimeException(opt.name() + " should be supported"); |
| } |
| |
| // check specified defaults |
| checkOption(dc, SO_BROADCAST, false); |
| checkOption(dc, IP_MULTICAST_TTL, 1); // true on supported platforms |
| checkOption(dc, IP_MULTICAST_LOOP, true); // true on supported platforms |
| |
| // allowed to change when not bound |
| dc.setOption(SO_BROADCAST, true); |
| checkOption(dc, SO_BROADCAST, true); |
| dc.setOption(SO_BROADCAST, false); |
| checkOption(dc, SO_BROADCAST, false); |
| dc.setOption(SO_SNDBUF, 128*1024); // can't check |
| dc.setOption(SO_RCVBUF, 128*1024); // can't check |
| int before, after; |
| before = dc.getOption(SO_SNDBUF); |
| after = dc.setOption(SO_SNDBUF, Integer.MAX_VALUE).getOption(SO_SNDBUF); |
| if (after < before) |
| throw new RuntimeException("setOption caused SO_SNDBUF to decrease"); |
| before = dc.getOption(SO_RCVBUF); |
| after = dc.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF); |
| if (after < before) |
| throw new RuntimeException("setOption caused SO_RCVBUF to decrease"); |
| dc.setOption(SO_REUSEADDR, true); |
| checkOption(dc, SO_REUSEADDR, true); |
| dc.setOption(SO_REUSEADDR, false); |
| checkOption(dc, SO_REUSEADDR, false); |
| if (reuseport) { |
| dc.setOption(SO_REUSEPORT, true); |
| checkOption(dc, SO_REUSEPORT, true); |
| dc.setOption(SO_REUSEPORT, false); |
| checkOption(dc, SO_REUSEPORT, false); |
| } |
| // bind socket |
| dc.bind(new InetSocketAddress(0)); |
| |
| // allow to change when bound |
| dc.setOption(SO_BROADCAST, true); |
| checkOption(dc, SO_BROADCAST, true); |
| dc.setOption(SO_BROADCAST, false); |
| checkOption(dc, SO_BROADCAST, false); |
| dc.setOption(IP_TOS, 0x08); // can't check |
| dc.setOption(IP_MULTICAST_TTL, 2); |
| checkOption(dc, IP_MULTICAST_TTL, 2); |
| dc.setOption(IP_MULTICAST_LOOP, false); |
| checkOption(dc, IP_MULTICAST_LOOP, false); |
| dc.setOption(IP_MULTICAST_LOOP, true); |
| checkOption(dc, IP_MULTICAST_LOOP, true); |
| |
| |
| // NullPointerException |
| try { |
| dc.setOption(null, "value"); |
| throw new RuntimeException("NullPointerException not thrown"); |
| } catch (NullPointerException x) { |
| } |
| try { |
| dc.getOption(null); |
| throw new RuntimeException("NullPointerException not thrown"); |
| } catch (NullPointerException x) { |
| } |
| |
| // ClosedChannelException |
| dc.close(); |
| try { |
| dc.setOption(IP_MULTICAST_LOOP, true); |
| throw new RuntimeException("ClosedChannelException not thrown"); |
| } catch (ClosedChannelException x) { |
| } |
| } |
| } |