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+// DatagramSocketImpl.java - Abstract datagram socket implementation.
+
+/* Copyright (C) 1999 Cygnus Solutions
+
+ This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+package java.net;
+import java.io.IOException;
+import java.io.FileDescriptor;
+
+/**
+ * @author Warren Levy <warrenl@cygnus.com>
+ * @date May 3, 1999.
+ */
+
+/**
+ * Written using on-line Java Platform 1.2 API Specification, as well
+ * as "The Java Class Libraries", 2nd edition (Addison-Wesley, 1998).
+ * Status: Believed complete and correct.
+ */
+
+// JDK1.2: needs to implement SocketOptions.
+// JDK1.2: public abstract class DatagramSocketImpl implements SocketOptions
+public abstract class DatagramSocketImpl
+{
+ protected int localport;
+ protected FileDescriptor fd;
+
+ public DatagramSocketImpl()
+ {
+ }
+
+ protected abstract void bind(int lport, InetAddress laddr)
+ throws SocketException;
+ protected abstract void close();
+ protected abstract void create() throws SocketException;
+ protected abstract int peek(InetAddress i) throws IOException;
+ protected abstract void send(DatagramPacket p) throws IOException;
+ protected abstract void receive(DatagramPacket p) throws IOException;
+ protected abstract void setTTL(byte ttl) throws IOException;
+ protected abstract byte getTTL() throws IOException;
+ protected abstract void setTimeToLive(int ttl) throws IOException;
+ protected abstract int getTimeToLive() throws IOException;
+ protected abstract void join(InetAddress inetaddr) throws IOException;
+ protected abstract void leave(InetAddress inetaddr) throws IOException;
+
+ protected FileDescriptor getFileDescriptor()
+ {
+ return fd;
+ }
+
+ protected int getLocalPort()
+ {
+ return localport;
+ }
+}