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- /*
- * @(#)SocketImpl.java 1.12 95/10/18 Jonathan Payne
- *
- * Copyright (c) 1994 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Permission to use, copy, modify, and distribute this software
- * and its documentation for NON-COMMERCIAL purposes and without
- * fee is hereby granted provided that this copyright notice
- * appears in all copies. Please refer to the file "copyright.html"
- * for further important copyright and licensing information.
- *
- * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
- * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
- * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
- */
-
- package java.net;
-
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.OutputStream;
-
- /**
- * This is the Socket implementation class. It is an
- * abstract class that must be subclassed to provide
- * an actual implementation.
- *
- * @version 1.12, 10/18/95
- * @author Jonathan Payne
- * @author Arthur van Hoff
- */
- public abstract class SocketImpl {
-
- /**
- * The file descriptor.
- */
- protected int fd;
-
- /**
- * The internet address where the socket will make connection.
- */
- protected InetAddress address;
-
- /**
- * The port where the socket will make connection.
- */
- protected int port;
- protected int localport;
-
- /**
- * Creates a socket with a boolean that specifies whether this
- * is a stream socket or a datagram socket.
- * @param stream a boolean indicating whether this is a stream
- * or datagram socket
- */
- protected abstract void create(boolean stream) throws IOException;
-
- /**
- * Connects the socket to the specified port on the specified host.
- * @param host the specified host of the connection
- * @param port the port where the connection is made
- */
- protected abstract void connect(String host, int port) throws IOException;
-
- /**
- * Connects the socket to the specified address on the specified
- * port.
- * @param address the specified address of the connection
- * @param port the specified port where connection is made
- */
- protected abstract void connect(InetAddress address, int port) throws IOException;
-
- /**
- * Binds the socket to the specified port on the specified host.
- * @param host the host
- * @param port the port
- */
- protected abstract void bind(InetAddress host, int port) throws IOException;
-
- /**
- * Listens for connections over a specified amount of time.
- * @param count the amount of time this socket will listen for
- * connections
- */
- protected abstract void listen(int count) throws IOException;
-
- /**
- * Accepts a connection.
- * @param s the accepted connection
- */
- protected abstract void accept(SocketImpl s) throws IOException;
-
- /**
- * Gets an InputStream for this socket.
- */
- protected abstract InputStream getInputStream() throws IOException;
-
- /**
- * Gets an OutputStream for this socket.
- */
- protected abstract OutputStream getOutputStream() throws IOException;
-
- /**
- * Closes the socket.
- */
- protected abstract void close() throws IOException;
-
- /**
- * Returns the address and port of this Socket as a String.
- */
- public String toString() {
- return "Socket[fd=" + (fd-1) + ",addr=" + address +
- ",port=" + port + ",localport=" + localport + "]";
- }
- }
-