78 lines
2.3 KiB
Java
78 lines
2.3 KiB
Java
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/*
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* Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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import java.io.*;
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import java.nio.channels.*;
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import java.util.*;
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class ClosedChannelList {
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static final long TIMEOUT = 10 * 1000; /* 10 sec */
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static class Element {
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long expiry;
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SelectionKey key;
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Element (long l, SelectionKey key) {
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expiry = l;
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this.key = key;
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}
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}
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LinkedList list;
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public ClosedChannelList () {
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list = new LinkedList ();
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}
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/* close chan after TIMEOUT milliseconds */
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public synchronized void add (SelectionKey key) {
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long exp = System.currentTimeMillis () + TIMEOUT;
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list.add (new Element (exp, key));
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}
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public synchronized void check () {
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check (false);
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}
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public synchronized void terminate () {
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check (true);
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}
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public synchronized void check (boolean forceClose) {
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Iterator iter = list.iterator ();
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long now = System.currentTimeMillis();
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while (iter.hasNext ()) {
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Element elm = (Element)iter.next();
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if (forceClose || elm.expiry <= now) {
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SelectionKey k = elm.key;
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try {
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k.channel().close ();
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} catch (IOException e) {}
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k.cancel();
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iter.remove();
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}
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}
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}
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}
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