+++ /dev/null
-/* ServerSocket.java -- Class for implementing server side sockets
- Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-02111-1307 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package java.net;
-
-import java.io.IOException;
-
-/* Written using on-line Java Platform 1.2 API Specification.
- * Status: I believe all methods are implemented.
- */
-
-/**
- * This class models server side sockets. The basic model is that the
- * server socket is created and bound to some well known port. It then
- * listens for and accepts connections. At that point the client and
- * server sockets are ready to communicate with one another utilizing
- * whatever application layer protocol they desire.
- * <p>
- * As with the <code>Socket</code> class, most instance methods of this class
- * simply redirect their calls to an implementation class.
- *
- * @author Aaron M. Renn (arenn@urbanophile.com)
- * @author Per Bothner (bothner@cygnus.com)
- */
-public class ServerSocket
-{
-
- // Class Variables
-
- /**
- * This is the user defined SocketImplFactory, if one is supplied
- */
- private static SocketImplFactory factory;
-
- // Instance Variables
-
- /**
- * This is the SocketImp object to which most instance methods in this
- * class are redirected
- */
- private SocketImpl impl;
-
- /**
- * Private constructor that simply sets the implementation.
- */
- private ServerSocket()
- {
- if (factory != null)
- impl = factory.createSocketImpl();
- else
- impl = new PlainSocketImpl();
- }
-
- /**
- * Creates a server socket and binds it to the specified port. If the
- * port number is 0, a random free port will be chosen. The pending
- * connection queue on this socket will be set to 50.
- *
- * @param port The port number to bind to
- *
- * @exception IOException If an error occurs
- */
- public ServerSocket (int port)
- throws java.io.IOException
- {
- this(port, 50);
- }
-
- /**
- * Creates a server socket and binds it to the specified port. If the
- * port number is 0, a random free port will be chosen. The pending
- * connection queue on this socket will be set to the value passed as
- * arg2.
- *
- * @param port The port number to bind to
- * @param backlog The length of the pending connection queue
- *
- * @exception IOException If an error occurs
- */
- public ServerSocket (int port, int backlog)
- throws java.io.IOException
- {
- this(port, backlog, null);
- }
-
- /**
- * Creates a server socket and binds it to the specified port. If the
- * port number is 0, a random free port will be chosen. The pending
- * connection queue on this socket will be set to the value passed as
- * backlog. The third argument specifies a particular local address to
- * bind t or null to bind to all local address.
- *
- * @param port The port number to bind to
- * @param backlog The length of the pending connection queue
- * @param bindAddr The address to bind to, or null to bind to all addresses
- *
- * @exception IOException If an error occurs
- */
- public ServerSocket (int port, int backlog, InetAddress bindAddr)
- throws java.io.IOException
- {
- this();
- if (impl == null)
- throw new IOException("Cannot initialize Socket implementation");
-
- SecurityManager s = System.getSecurityManager();
- if (s != null)
- s.checkListen(port);
-
- if (bindAddr == null)
- bindAddr = InetAddress.ANY_IF;
-
- impl.create(true);
- impl.bind(bindAddr, port);
- impl.listen(backlog);
- }
-
- /**
- * This method returns the local address to which this socket is bound
- *
- * @return The socket's local address
- */
- public InetAddress getInetAddress()
- {
- return impl.getInetAddress();
- }
-
- /**
- * This method returns the local port number to which this socket is bound
- *
- * @return The socket's port number
- */
- public int getLocalPort()
- {
- return impl.getLocalPort();
- }
-
- /**
- * Accepts a new connection and returns a connected <code>Socket</code>
- * instance representing that connection. This method will block until a
- * connection is available.
- *
- * @exception IOException If an error occurs
- */
- public Socket accept () throws IOException
- {
- Socket s = new Socket();
- implAccept (s);
-
- return s;
- }
-
- /**
- * This protected method is used to help subclasses override
- * <code>ServerSocket.accept()</code>. The passed in socket will be
- * connected when this method returns.
- *
- * @param socket The socket that is used for the accepted connection
- *
- * @exception IOException If an error occurs
- */
- protected final void implAccept (Socket s) throws IOException
- {
- impl.accept(s.impl);
- }
-
- /**
- * Closes this socket and stops listening for connections
- *
- * @exception IOException If an error occurs
- */
- public void close () throws IOException
- {
- impl.close();
- }
-
- /**
- * Sets the value of SO_TIMEOUT. A value of 0 implies that SO_TIMEOUT is
- * disabled (ie, operations never time out). This is the number of
- * milliseconds a socket operation can block before an
- * InterruptedIOException is thrown.
- *
- * @param timeout The new SO_TIMEOUT value
- *
- * @exception IOException If an error occurs
- */
- public void setSoTimeout (int timeout) throws SocketException
- {
- if (timeout < 0)
- throw new IllegalArgumentException("SO_TIMEOUT value must be >= 0");
-
- impl.setOption(SocketOptions.SO_TIMEOUT, new Integer(timeout));
- }
-
- /**
- * Retrieves the current value of the SO_TIMEOUT setting. A value of 0
- * implies that SO_TIMEOUT is disabled (ie, operations never time out).
- * This is the number of milliseconds a socket operation can block before
- * an InterruptedIOException is thrown.
- *
- * @return The value of SO_TIMEOUT
- *
- * @exception IOException If an error occurs
- */
- public int getSoTimeout () throws IOException
- {
- Object timeout = impl.getOption(SocketOptions.SO_TIMEOUT);
-
- if (!(timeout instanceof Integer))
- throw new IOException("Internal Error");
-
- return ((Integer)timeout).intValue();
- }
-
- /**
- * Returns the value of this socket as a <code>String</code>.
- *
- * @return This socket represented as a <code>String</code>.
- */
- public String toString ()
- {
- return "ServerSocket " + impl.toString();
- }
-
- // Class methods
-
- /**
- * Sets the <code>SocketImplFactory</code> for all
- * <code>ServerSocket</code>'s. This may only be done
- * once per virtual machine. Subsequent attempts will generate an
- * exception. Note that a <code>SecurityManager</code> check is made prior
- * to setting the factory. If insufficient privileges exist to set the
- * factory, an exception will be thrown
- *
- * @exception SecurityException If this operation is not allowed by the
- * <code>SecurityManager</code>.
- * @exception SocketException If the factory object is already defined
- * @exception IOException If any other error occurs
- */
- public static synchronized void setSocketFactory (SocketImplFactory fac)
- throws IOException
- {
- factory = fac;
- }
-}
projects / msp430-gcc.git / blobdiff