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.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 MacOSXSocketOptions extends PlatformSocketOptions {
  33 
  34     public MacOSXSocketOptions() {
  35     }
  36 
  37     @Override
  38     boolean keepAliveOptionsSupported() {
  39         return keepAliveOptionsSupported0();
  40     }
  41 
  42     @Override
  43     void setTcpkeepAliveProbes(int fd, final int value) throws SocketException {
  44         setTcpkeepAliveProbes0(fd, value);
  45     }
  46 
  47     @Override
  48     void setTcpKeepAliveTime(int fd, final int value) throws SocketException {
  49         setTcpKeepAliveTime0(fd, value);
  50     }
  51 
  52     @Override
  53     void setTcpKeepAliveIntvl(int fd, final int value) throws SocketException {
  54         setTcpKeepAliveIntvl0(fd, value);
  55     }
  56 
  57     @Override
  58     int getTcpkeepAliveProbes(int fd) throws SocketException {
  59         return getTcpkeepAliveProbes0(fd);
  60     }
  61 
  62     @Override
  63     int getTcpKeepAliveTime(int fd) throws SocketException {
  64         return getTcpKeepAliveTime0(fd);
  65     }
  66 
  67     @Override
  68     int getTcpKeepAliveIntvl(int fd) throws SocketException {
  69         return getTcpKeepAliveIntvl0(fd);
  70     }
  71 
  72     private static native void setTcpkeepAliveProbes0(int fd, int value) throws SocketException;
  73     private static native void setTcpKeepAliveTime0(int fd, int value) throws SocketException;
  74     private static native void setTcpKeepAliveIntvl0(int fd, int value) throws SocketException;
  75     private static native int getTcpkeepAliveProbes0(int fd) throws SocketException;
  76     private static native int getTcpKeepAliveTime0(int fd) throws SocketException;
  77     private static native int getTcpKeepAliveIntvl0(int fd) throws SocketException;
  78     private static native boolean keepAliveOptionsSupported0();
  79     static {
  80         AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
  81             System.loadLibrary("extnet");
  82             return null;
  83         });
  84     }
  85 }