libjava/java/net/DatagramSocketImpl.java

   1 // DatagramSocketImpl.java - Abstract datagram socket implementation.
   2
   3 /* Copyright (C) 1999  Cygnus Solutions
   4
   5    This file is part of libgcj.
   6
   7 This software is copyrighted work licensed under the terms of the
   8 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   9 details.  */
  10
  11 package java.net;
  12 import java.io.IOException;
  13 import java.io.FileDescriptor;
  14
  15 /**
  16  * @author Warren Levy <warrenl@cygnus.com>
  17  * @date May 3, 1999.
  18  */
  19
  20 /**
  21  * Written using on-line Java Platform 1.2 API Specification, as well
  22  * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
  23  * Status:  Believed complete and correct.
  24  */
  25
  26 public abstract class DatagramSocketImpl implements SocketOptions
  27 {
  28   protected int localPort;
  29   protected FileDescriptor fd;
  30
  31   public DatagramSocketImpl()
  32   {
  33   }
  34
  35   protected abstract void bind(int lport, InetAddress laddr)
  36         throws SocketException;
  37   protected abstract void close();
  38   protected abstract void create() throws SocketException;
  39   protected abstract int peek(InetAddress i) throws IOException;
  40   protected abstract void send(DatagramPacket p) throws IOException;
  41   protected abstract void receive(DatagramPacket p) throws IOException;
  42   protected abstract void setTTL(byte ttl) throws IOException;
  43   protected abstract byte getTTL() throws IOException;
  44   protected abstract void setTimeToLive(int ttl) throws IOException;
  45   protected abstract int getTimeToLive() throws IOException;
  46   protected abstract void join(InetAddress inetaddr) throws IOException;
  47   protected abstract void leave(InetAddress inetaddr) throws IOException;
  48
  49   public abstract Object getOption(int optID) throws SocketException;
  50   public abstract void setOption(int optID, Object value)
  51     throws SocketException;
  52
  53   protected FileDescriptor getFileDescriptor()
  54   {
  55     return fd;
  56   }
  57
  58   protected int getLocalPort()
  59   {
  60     return localPort;
  61   }
  62 }