/*
* Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* 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.
*
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*/
/* @test
* @bug 5004077
* @summary Check blocking of select and close
*/
import java.nio.channels.*;
import java.io.IOException;
public class SelectAndClose {
static Selector selector;
static boolean awakened = false;
static boolean closed = false;
public static void main(String[] args) throws Exception {
selector = Selector.open();
// Create and start a selector in a separate thread.
new Thread(new Runnable() {
public void run() {
try {
selector.select();
awakened = true;
} catch (IOException e) {
System.err.println(e);
}
}
}).start();
// Wait for above thread to get to select() before we call close.
Thread.sleep(3000);
// Try to close. This should wakeup select.
new Thread(new Runnable() {
public void run() {
try {
selector.close();
closed = true;
} catch (IOException e) {
System.err.println(e);
}
}
}).start();
// Wait for select() to be awakened, which should be done by close.
Thread.sleep(3000);
if (!awakened)
selector.wakeup();
// Correct result is true and true
if (!awakened)
throw new RuntimeException("Select did not wake up");
if (!closed)
throw new RuntimeException("Selector did not close");
}
}