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/*
* Copyright (c) 1999, 2012, 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 4208804
*
* @summary Incoming connections should be subject to timeout
* @author Adrian Colley
*
* @build TestIface TestImpl TestImpl_Stub
* @run main/othervm/policy=security.policy/timeout=60
* -Dsun.rmi.transport.tcp.readTimeout=5000 ReadTimeoutTest
*/
/* This test sets a very short read timeout, exports an object, and then
* connects to the port and does nothing. The server should close the
* connection after the timeout. If that doesn't happen, the test fails.
*
* A background thread does the read. The foreground waits for DELAY*4
* and then aborts. This should give sufficient margin for timing slop.
*/
import java.rmi.*;
import java.rmi.server.RMISocketFactory;
import java.io.*;
import java.net.*;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
public class ReadTimeoutTest
{
private static final int DELAY = 5000; // milliseconds
public static void main(String[] args)
throws Exception
{
// Make trouble for ourselves
if (System.getSecurityManager() == null)
System.setSecurityManager(new RMISecurityManager());
// Flaky code alert - hope this is executed before TCPTransport.<clinit>
System.setProperty("sun.rmi.transport.tcp.readTimeout", Integer.toString(DELAY));
// Set the socket factory.
System.err.println("(installing socket factory)");
SomeFactory fac = new SomeFactory();
RMISocketFactory.setSocketFactory(fac);
// Create remote object
TestImpl impl = new TestImpl();
// Export and get which port.
System.err.println("(exporting remote object)");
TestIface stub = impl.export();
Socket DoS = null;
try {
int port = fac.whichPort();
// Sanity
if (port == 0)
throw new Error("TEST FAILED: export didn't reserve a port(?)");
// Now, connect to that port
//Thread.sleep(2000);
System.err.println("(connecting to listening port on 127.0.0.1:" +
port + ")");
DoS = new Socket("127.0.0.1", port);
InputStream stream = DoS.getInputStream();
// Read on the socket in the background
CountDownLatch done = new CountDownLatch(1);
(new SomeReader(stream, done)).start();
// Wait for completion
if (done.await(DELAY * 4, TimeUnit.SECONDS)) {
System.err.println("TEST PASSED.");
} else {
throw new Error("TEST FAILED.");
}
} catch (InterruptedException ie) {
throw new Error("Unexpected interrupt", ie);
} finally {
try {
if (DoS != null)
DoS.close(); // aborts the reader if still blocked
impl.unexport();
} catch (Throwable unmatter) {
}
}
// Should exit here
}
private static class SomeFactory
extends RMISocketFactory
{
private int servport = 0;
@Override
public Socket createSocket(String h, int p)
throws IOException
{
return (new Socket(h, p));
}
/** Create a server socket and remember which port it's on.
* Aborts if createServerSocket(0) is called twice, because then
* it doesn't know whether to remember the first or second port.
*/
@Override
public ServerSocket createServerSocket(int p)
throws IOException
{
ServerSocket ss;
ss = new ServerSocket(p);
if (p == 0) {
if (servport != 0) {
System.err.println("TEST FAILED: " +
"Duplicate createServerSocket(0)");
throw new Error("Test aborted (createServerSocket)");
}
servport = ss.getLocalPort();
}
return (ss);
}
/** Return which port was reserved by createServerSocket(0).
* If the return value was 0, createServerSocket(0) wasn't called.
*/
public int whichPort() {
return (servport);
}
} // end class SomeFactory
protected static class SomeReader extends Thread {
private final InputStream readon;
private final CountDownLatch done;
public SomeReader(InputStream s, CountDownLatch done) {
super();
this.setDaemon(true);
this.readon = s;
this.done = done;
}
@Override
public void run() {
try {
int c = this.readon.read();
if (c != -1)
throw new Error ("Server returned " + c);
done.countDown();
} catch (IOException e) {
e.printStackTrace();
}
}
} // end class SomeReader
}
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