1 /* 2 * Copyright (c) 2017, 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, int 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 native static private void setQuickAck0(int fd, int on) throws SocketException; 53 54 native static private boolean getQuickAck0(int fd) throws SocketException; 55 56 native static private boolean quickAckSupported0(); 57 58 static { 59 AccessController.doPrivileged((PrivilegedAction<Void>) () -> { 60 System.loadLibrary("extnet"); 61 return null; 62 }); 63 } 64 }