1 /*
   2  * Copyright (c) 2007, 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 java.net;
  26 
  27 import java.io.IOException;
  28 
  29 /*
  30  * On Unix systems we simply delegate to native methods.
  31  *
  32  * @author Chris Hegarty
  33  */
  34 
  35 class PlainDatagramSocketImpl extends AbstractPlainDatagramSocketImpl
  36 {
  37     static {
  38         init();
  39     }
  40 
  41     protected synchronized native void bind0(int lport, InetAddress laddr)
  42         throws SocketException;
  43 
  44     protected native void send(DatagramPacket p) throws IOException;
  45 
  46     protected synchronized native int peek(InetAddress i) throws IOException;
  47 
  48     protected synchronized native int peekData(DatagramPacket p) throws IOException;
  49 
  50     protected synchronized native void receive0(DatagramPacket p)
  51         throws IOException;
  52 
  53     protected native void setTimeToLive(int ttl) throws IOException;
  54 
  55     protected native int getTimeToLive() throws IOException;
  56 
  57     protected native void setTTL(byte ttl) throws IOException;
  58 
  59     protected native byte getTTL() throws IOException;
  60 
  61     protected native void join(InetAddress inetaddr, NetworkInterface netIf)
  62         throws IOException;
  63 
  64     protected native void leave(InetAddress inetaddr, NetworkInterface netIf)
  65         throws IOException;
  66 
  67     protected native void datagramSocketCreate() throws SocketException;
  68 
  69     protected native void datagramSocketClose();
  70 
  71     protected native void socketSetOption(int opt, Object val)
  72         throws SocketException;
  73 
  74     protected native Object socketGetOption(int opt) throws SocketException;
  75 
  76     protected native void connect0(InetAddress address, int port) throws SocketException;
  77 
  78     protected native void disconnect0(int family);
  79 
  80     /**
  81      * Perform class load-time initializations.
  82      */
  83     private native static void init();
  84 }