1 /* 2 * Copyright (c) 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 jdk.internal.net.rdma; 26 27 import java.io.IOException; 28 import java.io.InputStream; 29 import java.net.SocketException; 30 import java.net.InetAddress; 31 import java.net.SocketImpl; 32 import sun.net.ext.RdmaSocketOptions; 33 import static jdk.internal.net.rdma.RdmaSocketImpl.PlatformRdmaSocketImpl; 34 35 class LinuxRdmaSocketImpl extends PlatformRdmaSocketImpl 36 { 37 static { 38 java.security.AccessController.doPrivileged( 39 new java.security.PrivilegedAction<>() { 40 public Void run() { 41 System.loadLibrary("net"); 42 System.loadLibrary("extnet"); 43 return null; 44 } 45 }); 46 initProto(); 47 } 48 49 public LinuxRdmaSocketImpl() { } 50 51 static final RdmaSocketOptions rdmaOptions = 52 RdmaSocketOptions.getInstance(); 53 54 private static volatile boolean checkedRdma; 55 private static volatile boolean isRdmaAvailable; 56 57 boolean isRdmaAvailable() { 58 if (!checkedRdma) { 59 isRdmaAvailable = isRdmaAvailable0(); 60 checkedRdma = true; 61 } 62 return isRdmaAvailable; 63 } 64 65 protected synchronized RdmaSocketInputStream getRdmaInputStream( 66 RdmaSocketImpl impl) throws IOException { 67 return new RdmaSocketInputStream(impl); 68 } 69 70 protected synchronized RdmaSocketOutputStream getRdmaOutputStream( 71 RdmaSocketImpl impl) throws IOException { 72 return new RdmaSocketOutputStream(impl); 73 } 74 75 protected void rdmaSocketShutdownInput(int howto, RdmaSocketImpl impl, 76 InputStream socketInputStream) throws IOException { 77 rdmaSocketShutdown(howto, impl); 78 if (socketInputStream != null) { 79 ((RdmaSocketInputStream)socketInputStream).setEOF(true); 80 } 81 } 82 83 static native void initProto(); 84 85 private static native boolean isRdmaAvailable0(); 86 87 native void rdmaSocketCreate(boolean isServer, RdmaSocketImpl impl) throws IOException; 88 89 native void rdmaSocketConnect(RdmaSocketImpl impl, InetAddress address, int port, int timeout) 90 throws IOException; 91 92 native void rdmaSocketBind(RdmaSocketImpl impl, InetAddress address, int port) 93 throws IOException; 94 95 native void rdmaSocketListen(RdmaSocketImpl impl, int count) throws IOException; 96 97 native void rdmaSocketAccept(SocketImpl impl, RdmaSocketImpl s) throws IOException; 98 99 native int rdmaSocketAvailable(RdmaSocketImpl impl) throws IOException; 100 101 native void rdmaSocketClose(boolean useDeferredClose, RdmaSocketImpl impl) throws IOException; 102 103 native void rdmaSocketShutdown(int howto, RdmaSocketImpl impl) throws IOException; 104 105 native void rdmaSocketSetOption(RdmaSocketImpl impl, int cmd, boolean on, Object value) 106 throws SocketException; 107 108 native int rdmaSocketGetOption(RdmaSocketImpl impl, int opt, Object iaContainerObj) throws SocketException; 109 110 native void rdmaSocketSendUrgentData(RdmaSocketImpl impl, int data) throws IOException; 111 }