/*
* Copyright (c) 2015, 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 8071599
* @run main/othervm SendUrgentData
* @run main/othervm SendUrgentData -inline
* @summary Test sending of urgent data.
*/
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.net.SocketException;
import java.nio.ByteBuffer;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
public class SendUrgentData {
/**
* The arguments may be one of the following:
* <ol>
* <li>-server</li>
* <li>-client host port [-inline]</li>
* <li>[-inline]</li>
* </ol>
* The first option creates a standalone server, the second a standalone
* client, and the third a self-contained server-client pair on the
* local host.
*
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
ServerSocketChannelThread serverThread
= new ServerSocketChannelThread("SendUrgentDataServer");
serverThread.start();
boolean b = serverThread.isAlive();
String host = null;
int port = 0;
boolean inline = false;
if (args.length > 0 && args[0].equals("-server")) {
System.out.println(serverThread.getAddress());
Thread.currentThread().suspend();
} else {
if (args.length > 0 && args[0].equals("-client")) {
host = args[1];
port = Integer.parseInt(args[2]);
if (args.length > 3) {
inline = args[2].equals("-inline");
}
} else {
host = "localhost";
port = serverThread.getAddress().getPort();
if (args.length > 0) {
inline = args[0].equals("-inline");
}
}
}
System.out.println("OOB Inline : "+inline);
SocketAddress sa = new InetSocketAddress(host, port);
try (SocketChannel sc = SocketChannel.open(sa)) {
sc.configureBlocking(false);
sc.socket().setOOBInline(inline);
sc.socket().sendUrgentData(0);
System.out.println("wrote 1 OOB byte");
ByteBuffer bb = ByteBuffer.wrap(new byte[100 * 1000]);
int blocked = 0;
long total = 0;
int n;
do {
n = sc.write(bb);
if (n == 0) {
System.out.println("blocked, wrote " + total + " so far");
if (++blocked == 10) {
break;
}
Thread.sleep(100);
} else {
total += n;
bb.rewind();
}
} while (n > 0);
long attempted = 0;
while (attempted < total) {
bb.rewind();
n = sc.write(bb);
System.out.println("wrote " + n + " normal bytes");
attempted += bb.capacity();
String osName = System.getProperty("os.name").toLowerCase();
try {
sc.socket().sendUrgentData(0);
} catch (IOException ex) {
if (osName.contains("linux")) {
if (!ex.getMessage().contains("Socket buffer full")) {
throw new RuntimeException("Unexpected message", ex);
}
} else if (osName.contains("os x") || osName.contains("mac")) {
if (!ex.getMessage().equals("No buffer space available")) {
throw new RuntimeException("Unexpected message", ex);
}
} else if (osName.contains("windows")) {
if (!(ex instanceof SocketException)) {
throw new RuntimeException("Unexpected exception", ex);
} else if (!ex.getMessage().contains("Resource temporarily unavailable")) {
throw new RuntimeException("Unexpected message", ex);
}
} else {
throw new RuntimeException("Unexpected IOException", ex);
}
}
try {
Thread.sleep(100);
} catch (InterruptedException ex) {
// don't want to fail on this so just print trace and break
ex.printStackTrace();
break;
}
}
} finally {
serverThread.close();
}
}
static class ServerSocketChannelThread extends Thread {
private ServerSocketChannel ssc;
private ServerSocketChannelThread(String name) {
super(name);
try {
ssc = ServerSocketChannel.open();
ssc.bind(new InetSocketAddress((0)));
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
public void run() {
while (ssc.isOpen()) {
try {
Thread.sleep(100);
} catch (InterruptedException ex) {
throw new RuntimeException(ex);
}
}
try {
ssc.close();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
System.out.println("ServerSocketChannelThread exiting ...");
}
public InetSocketAddress getAddress() throws IOException {
if (ssc == null) {
throw new IllegalStateException("ServerSocketChannel not created");
}
return (InetSocketAddress) ssc.getLocalAddress();
}
public void close() {
try {
ssc.close();
} catch (IOException ex) {
throw new RuntimeException(ex);
}
}
}
}