1 /* 2 * Copyright (c) 2017, 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.net; 26 27 import java.net.SocketException; 28 import java.security.AccessController; 29 import java.security.PrivilegedAction; 30 import jdk.net.ExtendedSocketOptions.PlatformSocketOptions; 31 32 class LinuxSocketOptions extends PlatformSocketOptions { 33 34 public LinuxSocketOptions() { 35 } 36 37 @Override 38 void setQuickAck(int fd, boolean on) throws SocketException { 39 setQuickAck0(fd, on); 40 } 41 42 @Override 43 boolean getQuickAck(int fd) throws SocketException { 44 return getQuickAck0(fd); 45 } 46 47 @Override 48 public boolean quickAckSupported() { 49 return quickAckSupported0(); 50 } 51 52 @Override 53 boolean keepAliveOptionsSupported() { 54 return keepAliveOptionsSupported0(); 55 } 56 57 @Override 58 void setTcpkeepAliveProbes(int fd, final int value) throws SocketException { 59 setTcpkeepAliveProbes0(fd, value); 60 } 61 62 @Override 63 void setTcpKeepAliveTime(int fd, final int value) throws SocketException { 64 setTcpKeepAliveTime0(fd, value); 65 } 66 67 @Override 68 void setTcpKeepAliveIntvl(int fd, final int value) throws SocketException { 69 setTcpKeepAliveIntvl0(fd, value); 70 } 71 72 @Override 73 int getTcpkeepAliveProbes(int fd) throws SocketException { 74 return getTcpkeepAliveProbes0(fd); 75 } 76 77 @Override 78 int getTcpKeepAliveTime(int fd) throws SocketException { 79 return getTcpKeepAliveTime0(fd); 80 } 81 82 @Override 83 int getTcpKeepAliveIntvl(int fd) throws SocketException { 84 return getTcpKeepAliveIntvl0(fd); 85 } 86 87 private static native void setTcpkeepAliveProbes0(int fd, int value) throws SocketException; 88 private static native void setTcpKeepAliveTime0(int fd, int value) throws SocketException; 89 private static native void setTcpKeepAliveIntvl0(int fd, int value) throws SocketException; 90 private static native int getTcpkeepAliveProbes0(int fd) throws SocketException; 91 private static native int getTcpKeepAliveTime0(int fd) throws SocketException; 92 private static native int getTcpKeepAliveIntvl0(int fd) throws SocketException; 93 private static native void setQuickAck0(int fd, boolean on) throws SocketException; 94 private static native boolean getQuickAck0(int fd) throws SocketException; 95 private static native boolean keepAliveOptionsSupported0(); 96 private static native boolean quickAckSupported0(); 97 static { 98 AccessController.doPrivileged((PrivilegedAction<Void>) () -> { 99 System.loadLibrary("extnet"); 100 return null; 101 }); 102 } 103 }