1 /* 2 * Copyright (c) 2007, 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 package rdma.ch; 26 27 import java.io.IOException; 28 import java.net.SocketException; 29 import java.net.InetAddress; 30 import java.net.SocketImpl; 31 import sun.net.ext.RdmaSocketOptions; 32 import rdma.ch.RdmaSocketImpl.PlatformRdmaSocketImpl; 33 34 class LinuxRdmaSocketImpl extends PlatformRdmaSocketImpl 35 { 36 static { 37 java.security.AccessController.doPrivileged( 38 new java.security.PrivilegedAction<>() { 39 public Void run() { 40 System.loadLibrary("net"); 41 System.loadLibrary("extnet"); 42 return null; 43 } 44 }); 45 initProto(); 46 } 47 48 public LinuxRdmaSocketImpl() { } 49 50 static final RdmaSocketOptions rdmaOptions = 51 RdmaSocketOptions.getInstance(); 52 53 private static volatile boolean checkedRdma; 54 private static volatile boolean isRdmaAvailable; 55 56 boolean isRdmaAvailable() { 57 if (!checkedRdma) { 58 isRdmaAvailable = isRdmaAvailable0(); 59 checkedRdma = true; 60 } 61 return isRdmaAvailable; 62 } 63 64 static native void initProto(); 65 66 private static native boolean isRdmaAvailable0(); 67 68 native void rdmaSocketCreate(boolean isServer, RdmaSocketImpl impl) throws IOException; 69 70 native void rdmaSocketConnect(RdmaSocketImpl impl, InetAddress address, int port, int timeout) 71 throws IOException; 72 73 native void rdmaSocketBind(RdmaSocketImpl impl, InetAddress address, int port) 74 throws IOException; 75 76 native void rdmaSocketListen(RdmaSocketImpl impl, int count) throws IOException; 77 78 native void rdmaSocketAccept(SocketImpl impl, RdmaSocketImpl s) throws IOException; 79 80 native int rdmaSocketAvailable(RdmaSocketImpl impl) throws IOException; 81 82 native void rdmaSocketClose(boolean useDeferredClose, RdmaSocketImpl impl) throws IOException; 83 84 native void rdmaSocketShutdown(int howto, RdmaSocketImpl impl) throws IOException; 85 86 native void rdmaSocketSetOption(RdmaSocketImpl impl, int cmd, boolean on, Object value) 87 throws SocketException; 88 89 native int rdmaSocketGetOption(RdmaSocketImpl impl, int opt, Object iaContainerObj) throws SocketException; 90 91 native void rdmaSocketSendUrgentData(RdmaSocketImpl impl, int data) throws IOException; 92 }