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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 to check SocketChannel setOption/getOption/options
* methods.
* @modules java.base/sun.net.ext
* 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.*;
import static sun.net.ext.ExtendedSocketOptions.SOCK_STREAM;
import sun.net.ext.ExtendedSocketOptions;
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> extOptions = List.of(TCP_KEEPCOUNT,
TCP_KEEPIDLE, TCP_KEEPINTERVAL);
List<? extends SocketOption> expected;
boolean keepAliveOptsupported;
if (keepAliveOptsupported=ExtendedSocketOptions.options(SOCK_STREAM)
.containsAll(extOptions)) {
expected = Arrays.asList(SO_SNDBUF, SO_RCVBUF, SO_KEEPALIVE,
SO_REUSEADDR, SO_LINGER, TCP_NODELAY, TCP_KEEPCOUNT,
TCP_KEEPIDLE, TCP_KEEPINTERVAL);
} else {
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
if (keepAliveOptsupported) {
sc.setOption(TCP_KEEPIDLE, 1234);
checkOption(sc, TCP_KEEPIDLE, 1234);
sc.setOption(TCP_KEEPINTERVAL, 123);
checkOption(sc, TCP_KEEPINTERVAL, 123);
sc.setOption(TCP_KEEPCOUNT, 7);
checkOption(sc, TCP_KEEPCOUNT, 7);
}
// 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) {
}
}
}
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