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/*
* 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");
}
}
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