893N/A/*
3261N/A * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
893N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
893N/A *
893N/A * This code is free software; you can redistribute it and/or modify it
893N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
893N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
893N/A *
893N/A * This code is distributed in the hope that it will be useful, but WITHOUT
893N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
893N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
893N/A * version 2 for more details (a copy is included in the LICENSE file that
893N/A * accompanied this code).
893N/A *
893N/A * You should have received a copy of the GNU General Public License version
893N/A * 2 along with this work; if not, write to the Free Software Foundation,
893N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
893N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
893N/A */
893N/A
893N/Apackage sun.nio.ch;
893N/A
893N/Aimport java.nio.channels.*;
893N/Aimport java.nio.channels.spi.AsynchronousChannelProvider;
893N/Aimport java.util.concurrent.ExecutorService;
893N/Aimport java.util.concurrent.ThreadFactory;
893N/Aimport java.io.IOException;
893N/A
893N/Apublic class LinuxAsynchronousChannelProvider
893N/A extends AsynchronousChannelProvider
893N/A{
893N/A private static volatile EPollPort defaultPort;
893N/A
893N/A private EPollPort defaultEventPort() throws IOException {
893N/A if (defaultPort == null) {
893N/A synchronized (LinuxAsynchronousChannelProvider.class) {
893N/A if (defaultPort == null) {
893N/A defaultPort = new EPollPort(this, ThreadPool.getDefault()).start();
893N/A }
893N/A }
893N/A }
893N/A return defaultPort;
893N/A }
893N/A
893N/A public LinuxAsynchronousChannelProvider() {
893N/A }
893N/A
893N/A @Override
893N/A public AsynchronousChannelGroup openAsynchronousChannelGroup(int nThreads, ThreadFactory factory)
893N/A throws IOException
893N/A {
893N/A return new EPollPort(this, ThreadPool.create(nThreads, factory)).start();
893N/A }
893N/A
893N/A @Override
893N/A public AsynchronousChannelGroup openAsynchronousChannelGroup(ExecutorService executor, int initialSize)
893N/A throws IOException
893N/A {
893N/A return new EPollPort(this, ThreadPool.wrap(executor, initialSize)).start();
893N/A }
893N/A
893N/A private Port toPort(AsynchronousChannelGroup group) throws IOException {
893N/A if (group == null) {
893N/A return defaultEventPort();
893N/A } else {
893N/A if (!(group instanceof EPollPort))
893N/A throw new IllegalChannelGroupException();
893N/A return (Port)group;
893N/A }
893N/A }
893N/A
893N/A @Override
893N/A public AsynchronousServerSocketChannel openAsynchronousServerSocketChannel(AsynchronousChannelGroup group)
893N/A throws IOException
893N/A {
893N/A return new UnixAsynchronousServerSocketChannelImpl(toPort(group));
893N/A }
893N/A
893N/A @Override
893N/A public AsynchronousSocketChannel openAsynchronousSocketChannel(AsynchronousChannelGroup group)
893N/A throws IOException
893N/A {
893N/A return new UnixAsynchronousSocketChannelImpl(toPort(group));
893N/A }
893N/A}