1 /* 2 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package sun.nio.ch; 27 28 import java.nio.channels.*; 29 import java.nio.channels.spi.AsynchronousChannelProvider; 30 import java.util.concurrent.ExecutorService; 31 import java.util.concurrent.ThreadFactory; 32 import java.io.IOException; 33 34 public class SolarisAsynchronousChannelProvider 35 extends AsynchronousChannelProvider 36 { 37 private static volatile SolarisEventPort defaultEventPort; 38 39 private SolarisEventPort defaultEventPort() throws IOException { 40 if (defaultEventPort == null) { 41 synchronized (SolarisAsynchronousChannelProvider.class) { 42 if (defaultEventPort == null) { 43 defaultEventPort = 44 new SolarisEventPort(this, ThreadPool.getDefault()).start(); 45 } 46 } 47 } 48 return defaultEventPort; 49 } 50 51 public SolarisAsynchronousChannelProvider() { 52 } 53 54 @Override 55 public AsynchronousChannelGroup openAsynchronousChannelGroup(int nThreads, ThreadFactory factory) 56 throws IOException 57 { 58 return new SolarisEventPort(this, ThreadPool.create(nThreads, factory)).start(); 59 } 60 61 @Override 62 public AsynchronousChannelGroup openAsynchronousChannelGroup(ExecutorService executor, int initialSize) 63 throws IOException 64 { 65 return new SolarisEventPort(this, ThreadPool.wrap(executor, initialSize)).start(); 66 } 67 68 private SolarisEventPort toEventPort(AsynchronousChannelGroup group) 69 throws IOException 70 { 71 if (group == null) { 72 return defaultEventPort(); 73 } else { 74 if (!(group instanceof SolarisEventPort)) 75 throw new IllegalChannelGroupException(); 76 return (SolarisEventPort)group; 77 } 78 } 79 80 @Override 81 public AsynchronousServerSocketChannel openAsynchronousServerSocketChannel(AsynchronousChannelGroup group) 82 throws IOException 83 { 84 return new UnixAsynchronousServerSocketChannelImpl(toEventPort(group)); 85 } 86 87 @Override 88 public AsynchronousSocketChannel openAsynchronousSocketChannel(AsynchronousChannelGroup group) 89 throws IOException 90 { 91 return new UnixAsynchronousSocketChannelImpl(toEventPort(group)); 92 } 93 }