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/*
* Copyright (c) 2002, 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.
*/
import java.io.*;
import java.nio.channels.*;
import java.util.*;
class ClosedChannelList {
static final long TIMEOUT = 10 * 1000; /* 10 sec */
static class Element {
long expiry;
SelectionKey key;
Element (long l, SelectionKey key) {
expiry = l;
this.key = key;
}
}
LinkedList list;
public ClosedChannelList () {
list = new LinkedList ();
}
/* close chan after TIMEOUT milliseconds */
public synchronized void add (SelectionKey key) {
long exp = System.currentTimeMillis () + TIMEOUT;
list.add (new Element (exp, key));
}
public synchronized void check () {
check (false);
}
public synchronized void terminate () {
check (true);
}
public synchronized void check (boolean forceClose) {
Iterator iter = list.iterator ();
long now = System.currentTimeMillis();
while (iter.hasNext ()) {
Element elm = (Element)iter.next();
if (forceClose || elm.expiry <= now) {
SelectionKey k = elm.key;
try {
k.channel().close ();
} catch (IOException e) {}
k.cancel();
iter.remove();
}
}
}
}
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