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/*
* Copyright (c) 2007, 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 4640544 8044773
* @summary Unit test for ServerSocketChannel setOption/getOption/options
* methods.
* @modules jdk.net
* @requires !vm.graal.enabled
* @run main SocketOptionTests
* @run main/othervm --limit-modules=java.base SocketOptionTests
*/
import java.nio.channels.*;
import java.net.*;
import java.io.IOException;
import java.util.*;
import static java.net.StandardSocketOptions.*;
import static jdk.net.ExtendedSocketOptions.*;
public class SocketOptionTests {
private static final int DEFAULT_KEEP_ALIVE_PROBES = 7;
private static final int DEFAULT_KEEP_ALIVE_TIME = 1973;
private static final int DEFAULT_KEEP_ALIVE_INTVL = 53;
static void checkOption(ServerSocketChannel ssc, SocketOption name, Object expectedValue)
throws IOException
{
Object value = ssc.getOption(name);
if (!value.equals(expectedValue))
throw new RuntimeException("value not as expected");
}
public static void main(String[] args) throws IOException {
ServerSocketChannel ssc = ServerSocketChannel.open();
// check supported options
Set<SocketOption<?>> options = ssc.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
ssc.setOption(SO_RCVBUF, 256*1024); // can't check
int before = ssc.getOption(SO_RCVBUF);
int after = ssc.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF);
if (after < before)
throw new RuntimeException("setOption caused SO_RCVBUF to decrease");
ssc.setOption(SO_REUSEADDR, true);
checkOption(ssc, SO_REUSEADDR, true);
ssc.setOption(SO_REUSEADDR, false);
checkOption(ssc, SO_REUSEADDR, false);
if (reuseport) {
ssc.setOption(SO_REUSEPORT, true);
checkOption(ssc, SO_REUSEPORT, true);
ssc.setOption(SO_REUSEPORT, false);
checkOption(ssc, SO_REUSEPORT, false);
}
if (ssc.supportedOptions().containsAll(List.of(TCP_KEEPCOUNT,
TCP_KEEPIDLE, TCP_KEEPINTERVAL))) {
ssc.setOption(TCP_KEEPCOUNT, DEFAULT_KEEP_ALIVE_PROBES);
checkOption(ssc, TCP_KEEPCOUNT, DEFAULT_KEEP_ALIVE_PROBES);
ssc.setOption(TCP_KEEPIDLE, DEFAULT_KEEP_ALIVE_TIME);
checkOption(ssc, TCP_KEEPIDLE, DEFAULT_KEEP_ALIVE_TIME);
ssc.setOption(TCP_KEEPINTERVAL, DEFAULT_KEEP_ALIVE_INTVL);
checkOption(ssc, TCP_KEEPINTERVAL, DEFAULT_KEEP_ALIVE_INTVL);
}
// NullPointerException
try {
ssc.setOption(null, "value");
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException x) {
}
try {
ssc.getOption(null);
throw new RuntimeException("NullPointerException not thrown");
} catch (NullPointerException x) {
}
// ClosedChannelException
ssc.close();
try {
ssc.setOption(SO_REUSEADDR, true);
throw new RuntimeException("ClosedChannelException not thrown");
} catch (ClosedChannelException x) {
}
}
}
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