| /* |
| * Copyright (c) 2008, 2010, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| package sun.nio.ch; |
| |
| import java.nio.channels.*; |
| import java.nio.channels.spi.AsynchronousChannelProvider; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.ThreadFactory; |
| import java.io.IOException; |
| |
| public class WindowsAsynchronousChannelProvider |
| extends AsynchronousChannelProvider |
| { |
| private static volatile Iocp defaultIocp; |
| |
| public WindowsAsynchronousChannelProvider() { |
| // nothing to do |
| } |
| |
| private Iocp defaultIocp() throws IOException { |
| if (defaultIocp == null) { |
| synchronized (WindowsAsynchronousChannelProvider.class) { |
| if (defaultIocp == null) { |
| // default thread pool may be shared with AsynchronousFileChannels |
| defaultIocp = new Iocp(this, ThreadPool.getDefault()).start(); |
| } |
| } |
| } |
| return defaultIocp; |
| } |
| |
| @Override |
| public AsynchronousChannelGroup openAsynchronousChannelGroup(int nThreads, ThreadFactory factory) |
| throws IOException |
| { |
| return new Iocp(this, ThreadPool.create(nThreads, factory)).start(); |
| } |
| |
| @Override |
| public AsynchronousChannelGroup openAsynchronousChannelGroup(ExecutorService executor, int initialSize) |
| throws IOException |
| { |
| return new Iocp(this, ThreadPool.wrap(executor, initialSize)).start(); |
| } |
| |
| private Iocp toIocp(AsynchronousChannelGroup group) throws IOException { |
| if (group == null) { |
| return defaultIocp(); |
| } else { |
| if (!(group instanceof Iocp)) |
| throw new IllegalChannelGroupException(); |
| return (Iocp)group; |
| } |
| } |
| |
| @Override |
| public AsynchronousServerSocketChannel openAsynchronousServerSocketChannel(AsynchronousChannelGroup group) |
| throws IOException |
| { |
| return new WindowsAsynchronousServerSocketChannelImpl(toIocp(group)); |
| } |
| |
| @Override |
| public AsynchronousSocketChannel openAsynchronousSocketChannel(AsynchronousChannelGroup group) |
| throws IOException |
| { |
| return new WindowsAsynchronousSocketChannelImpl(toIocp(group)); |
| } |
| } |