1 /* 2 * Copyright (c) 2001, 2018, 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 rdma.ch; 27 28 import java.io.IOException; 29 import java.nio.channels.*; 30 import java.nio.channels.spi.*; 31 import sun.nio.ch.SelectorProviderImpl; 32 import java.security.AccessController; 33 import java.security.PrivilegedAction; 34 35 public class RdmaPollSelectorProvider 36 extends SelectorProviderImpl 37 { 38 private static final Object lock = new Object(); 39 private static SelectorProvider provider = null; 40 41 public static SelectorProvider provider() { 42 synchronized (lock) { 43 if (provider != null) 44 return provider; 45 return AccessController.doPrivileged( 46 new PrivilegedAction<>() { 47 public SelectorProvider run() { 48 provider = new RdmaPollSelectorProvider(); 49 return provider; 50 } 51 }); 52 } 53 } 54 55 public AbstractSelector openSelector() throws IOException { 56 return new RdmaPollSelectorImpl(this); 57 } 58 59 public SocketChannel openSocketChannel() throws IOException { 60 return new RdmaSocketChannelImpl(this); 61 } 62 63 public ServerSocketChannel openServerSocketChannel() throws IOException { 64 return new RdmaServerSocketChannelImpl(this); 65 } 66 }