91 lines
3.2 KiB
Java
91 lines
3.2 KiB
Java
/*
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* Copyright (c) 2008, 2010, Oracle and/or its affiliates. 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.nio.ch;
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import java.nio.channels.*;
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import java.nio.channels.spi.AsynchronousChannelProvider;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.ThreadFactory;
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import java.io.IOException;
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public class LinuxAsynchronousChannelProvider
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extends AsynchronousChannelProvider
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{
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private static volatile EPollPort defaultPort;
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private EPollPort defaultEventPort() throws IOException {
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if (defaultPort == null) {
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synchronized (LinuxAsynchronousChannelProvider.class) {
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if (defaultPort == null) {
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defaultPort = new EPollPort(this, ThreadPool.getDefault()).start();
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}
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}
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}
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return defaultPort;
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}
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public LinuxAsynchronousChannelProvider() {
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}
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@Override
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public AsynchronousChannelGroup openAsynchronousChannelGroup(int nThreads, ThreadFactory factory)
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throws IOException
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{
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return new EPollPort(this, ThreadPool.create(nThreads, factory)).start();
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}
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@Override
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public AsynchronousChannelGroup openAsynchronousChannelGroup(ExecutorService executor, int initialSize)
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throws IOException
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{
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return new EPollPort(this, ThreadPool.wrap(executor, initialSize)).start();
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}
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private Port toPort(AsynchronousChannelGroup group) throws IOException {
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if (group == null) {
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return defaultEventPort();
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} else {
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if (!(group instanceof EPollPort))
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throw new IllegalChannelGroupException();
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return (Port)group;
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}
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}
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@Override
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public AsynchronousServerSocketChannel openAsynchronousServerSocketChannel(AsynchronousChannelGroup group)
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throws IOException
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{
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return new UnixAsynchronousServerSocketChannelImpl(toPort(group));
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}
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@Override
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public AsynchronousSocketChannel openAsynchronousSocketChannel(AsynchronousChannelGroup group)
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throws IOException
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{
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return new UnixAsynchronousSocketChannelImpl(toPort(group));
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}
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}
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