| /* |
| * Copyright (c) 2008, 2018, 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 4607272 6842687 |
| * @summary Unit test for AsynchronousServerSocketChannel |
| * @modules jdk.net |
| * @run main/timeout=180 Basic |
| */ |
| |
| import java.nio.channels.*; |
| import java.net.*; |
| import static java.net.StandardSocketOptions.*; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.atomic.AtomicReference; |
| import static jdk.net.ExtendedSocketOptions.TCP_KEEPCOUNT; |
| import static jdk.net.ExtendedSocketOptions.TCP_KEEPIDLE; |
| import static jdk.net.ExtendedSocketOptions.TCP_KEEPINTERVAL; |
| |
| public class Basic { |
| |
| public static void main(String[] args) throws Exception { |
| testBind(); |
| testAccept(); |
| testSocketOptions(); |
| } |
| |
| static void testBind() throws Exception { |
| System.out.println("-- bind --"); |
| |
| AsynchronousServerSocketChannel ch = AsynchronousServerSocketChannel.open(); |
| if (ch.getLocalAddress() != null) |
| throw new RuntimeException("Local address should be 'null'"); |
| ch.bind(new InetSocketAddress(0), 20); |
| |
| // check local address after binding |
| InetSocketAddress local = (InetSocketAddress)ch.getLocalAddress(); |
| if (local.getPort() == 0) |
| throw new RuntimeException("Unexpected port"); |
| if (!local.getAddress().isAnyLocalAddress()) |
| throw new RuntimeException("Not bound to a wildcard address"); |
| |
| // try to re-bind |
| try { |
| ch.bind(new InetSocketAddress(0)); |
| throw new RuntimeException("AlreadyBoundException expected"); |
| } catch (AlreadyBoundException x) { |
| } |
| ch.close(); |
| |
| // check ClosedChannelException |
| ch = AsynchronousServerSocketChannel.open(); |
| ch.close(); |
| try { |
| ch.bind(new InetSocketAddress(0)); |
| throw new RuntimeException("ClosedChannelException expected"); |
| } catch (ClosedChannelException x) { |
| } |
| } |
| |
| static void testAccept() throws Exception { |
| System.out.println("-- accept --"); |
| |
| final AsynchronousServerSocketChannel listener = |
| AsynchronousServerSocketChannel.open().bind(new InetSocketAddress(0)); |
| |
| InetAddress lh = InetAddress.getLocalHost(); |
| int port = ((InetSocketAddress)(listener.getLocalAddress())).getPort(); |
| final InetSocketAddress isa = new InetSocketAddress(lh, port); |
| |
| // establish a few loopback connections |
| for (int i=0; i<100; i++) { |
| SocketChannel sc = SocketChannel.open(isa); |
| AsynchronousSocketChannel ch = listener.accept().get(); |
| sc.close(); |
| ch.close(); |
| } |
| |
| final AtomicReference<Throwable> exception = new AtomicReference<Throwable>(); |
| |
| // start accepting |
| listener.accept((Void)null, new CompletionHandler<AsynchronousSocketChannel,Void>() { |
| public void completed(AsynchronousSocketChannel ch, Void att) { |
| try { |
| ch.close(); |
| } catch (IOException ignore) { } |
| } |
| public void failed(Throwable exc, Void att) { |
| exception.set(exc); |
| } |
| }); |
| |
| // check AcceptPendingException |
| try { |
| listener.accept(); |
| throw new RuntimeException("AcceptPendingException expected"); |
| } catch (AcceptPendingException x) { |
| } |
| |
| // asynchronous close |
| listener.close(); |
| while (exception.get() == null) |
| Thread.sleep(100); |
| if (!(exception.get() instanceof AsynchronousCloseException)) |
| throw new RuntimeException("AsynchronousCloseException expected"); |
| |
| // once closed when a further attemt should throw ClosedChannelException |
| try { |
| listener.accept().get(); |
| throw new RuntimeException("ExecutionException expected"); |
| } catch (ExecutionException x) { |
| if (!(x.getCause() instanceof ClosedChannelException)) |
| throw new RuntimeException("Cause of ClosedChannelException expected"); |
| } catch (InterruptedException x) { |
| } |
| |
| } |
| |
| static void testSocketOptions() throws Exception { |
| System.out.println("-- socket options --"); |
| AsynchronousServerSocketChannel ch = AsynchronousServerSocketChannel.open(); |
| try { |
| // check supported options |
| Set<SocketOption<?>> options = ch.supportedOptions(); |
| boolean reuseport = options.contains(SO_REUSEPORT); |
| if (!options.contains(SO_REUSEADDR)) |
| throw new RuntimeException("SO_REUSEADDR should be supported"); |
| if (!options.contains(SO_REUSEPORT) && reuseport) |
| throw new RuntimeException("SO_REUSEPORT should be supported"); |
| if (!options.contains(SO_RCVBUF)) |
| throw new RuntimeException("SO_RCVBUF should be supported"); |
| |
| // allowed to change when not bound |
| ch.setOption(SO_RCVBUF, 256*1024); // can't check |
| int before = ch.getOption(SO_RCVBUF); |
| int after = ch.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF); |
| if (after < before) |
| throw new RuntimeException("setOption caused SO_RCVBUF to decrease"); |
| ch.setOption(SO_REUSEADDR, true); |
| checkOption(ch, SO_REUSEADDR, true); |
| ch.setOption(SO_REUSEADDR, false); |
| checkOption(ch, SO_REUSEADDR, false); |
| |
| if (reuseport) { |
| ch.setOption(SO_REUSEPORT, true); |
| checkOption(ch, SO_REUSEPORT, true); |
| ch.setOption(SO_REUSEPORT, false); |
| checkOption(ch, SO_REUSEPORT, false); |
| } |
| List<? extends SocketOption> extOptions = List.of(TCP_KEEPCOUNT, |
| TCP_KEEPIDLE, TCP_KEEPINTERVAL); |
| if (options.containsAll(extOptions)) { |
| ch.setOption(TCP_KEEPIDLE, 1234); |
| checkOption(ch, TCP_KEEPIDLE, 1234); |
| ch.setOption(TCP_KEEPINTERVAL, 123); |
| checkOption(ch, TCP_KEEPINTERVAL, 123); |
| ch.setOption(TCP_KEEPCOUNT, 7); |
| checkOption(ch, TCP_KEEPCOUNT, 7); |
| } |
| } finally { |
| ch.close(); |
| } |
| } |
| |
| static void checkOption(AsynchronousServerSocketChannel ch, |
| SocketOption name, Object expectedValue) |
| throws IOException |
| { |
| Object value = ch.getOption(name); |
| if (!value.equals(expectedValue)) |
| throw new RuntimeException("value not as expected"); |
| } |
| } |