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

  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 }

   1 /*
   2  * Copyright (c) 2017, 2019, 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

  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         jdk.internal.access.SharedSecrets.getJavaLangAccess()
  99                 .loadLibrary(LinuxSocketOptions.class, "extnet");


 100     }
 101 }