1adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/* 2adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Licensed to the Apache Software Foundation (ASF) under one or more 3adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * contributor license agreements. See the NOTICE file distributed with 4adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * this work for additional information regarding copyright ownership. 5adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * The ASF licenses this file to You under the Apache License, Version 2.0 6adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * (the "License"); you may not use this file except in compliance with 7adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the License. You may obtain a copy of the License at 8adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 9adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 10adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 11adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Unless required by applicable law or agreed to in writing, software 12adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 13adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * See the License for the specific language governing permissions and 15adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * limitations under the License. 16adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 17adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 18adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpackage java.net; 19adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 20adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.io.IOException; 21adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectimport java.nio.channels.ServerSocketChannel; 22adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 23adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/** 24adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This class represents a server-side socket that waits for incoming client 25adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * connections. A {@code ServerSocket} handles the requests and sends back an 26adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * appropriate reply. The actual tasks that a server socket must accomplish are 27adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * implemented by an internal {@code SocketImpl} instance. 28adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 29adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpublic class ServerSocket { 30a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes /** 31a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * The RI specifies that where the caller doesn't give an explicit backlog, 32a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * the default is 50. The OS disagrees, so we need to explicitly call listen(2). 33a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes */ 34a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes private static final int DEFAULT_BACKLOG = 50; 35adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 36a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes private final SocketImpl impl; 37adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 38a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes /** 39a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * @hide internal use only 40a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes */ 41a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes public SocketImpl getImpl$() { 42a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes return impl; 43a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes } 44adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 45a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes static SocketImplFactory factory; 46adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 47adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private boolean isBound; 48adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 49adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private boolean isClosed; 50f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson 51adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 52a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * Constructs a new unbound {@code ServerSocket}. 53f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 54a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * @throws IOException if an error occurs while creating the socket. 55adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 56adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocket() throws IOException { 57a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes this.impl = factory != null ? factory.createSocketImpl() 58f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson : new PlainServerSocketImpl(); 59a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes impl.create(true); 60adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 61adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 62adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 63a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * Constructs a new {@code ServerSocket} instance bound to the given {@code port}. 64a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * The backlog is set to 50. If {@code port == 0}, a port will be assigned by the OS. 65adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 66a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * @throws IOException if an error occurs while creating the socket. 67adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 68a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes public ServerSocket(int port) throws IOException { 69a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes this(port, DEFAULT_BACKLOG, Inet4Address.ANY); 70adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 71adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 72adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 73a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * Constructs a new {@code ServerSocket} instance bound to the given {@code port}. 74a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * The backlog is set to {@code backlog}. 75a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * If {@code port == 0}, a port will be assigned by the OS. 76f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 77a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * @throws IOException if an error occurs while creating the socket. 78adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 79a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes public ServerSocket(int port, int backlog) throws IOException { 80a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes this(port, backlog, Inet4Address.ANY); 81adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 82adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 83adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 84a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * Constructs a new {@code ServerSocket} instance bound to the given {@code localAddress} 85a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * and {@code port}. The backlog is set to {@code backlog}. 86a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * If {@code localAddress == null}, the ANY address is used. 87a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * If {@code port == 0}, a port will be assigned by the OS. 88f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 89a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes * @throws IOException if an error occurs while creating the socket. 90adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 91a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes public ServerSocket(int port, int backlog, InetAddress localAddress) throws IOException { 92a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkListen(port); 93a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes this.impl = factory != null ? factory.createSocketImpl() 94f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson : new PlainServerSocketImpl(); 95a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes InetAddress addr = (localAddress == null) ? Inet4Address.ANY : localAddress; 96adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 97adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 98adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.create(true); 99adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 100a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes impl.bind(addr, port); 101adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isBound = true; 102a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes impl.listen(backlog > 0 ? backlog : DEFAULT_BACKLOG); 103adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 104adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project close(); 105adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 106adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 107adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 108adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 109adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 110adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 111adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Waits for an incoming request and blocks until the connection is opened. 112adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This method returns a socket object representing the just opened 113adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * connection. 114f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 115adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the connection representing socket. 116adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 117adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while accepting a new connection. 118adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 119adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public Socket accept() throws IOException { 120a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 121adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 122b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Socket is not bound"); 123adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 124adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 125adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project Socket aSocket = new Socket(); 126adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 12755392539fea537abfb6581b474918f9d611fba27Jesse Wilson implAccept(aSocket); 128adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 129adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project aSocket.close(); 130adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 131adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 132adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return aSocket; 133adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 134adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 135ad41624e761bcf1af9c8008eb45187fc13983717Elliott Hughes private void checkListen(int aPort) { 136adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (aPort < 0 || aPort > 65535) { 137b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("Port out of range: " + aPort); 138adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 139adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 140adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 141adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 142adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Closes this server socket and its implementation. Any attempt to connect 143adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * to this socket thereafter will fail. 144f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 145adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 146adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while closing this socket. 147adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 148adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void close() throws IOException { 149adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isClosed = true; 150adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.close(); 151adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 152adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 153adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 154adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local IP address of this server socket or {@code null} if the 155adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * socket is unbound. This is useful for multihomed hosts. 156f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 157adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local address of this server socket. 158adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 159adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public InetAddress getInetAddress() { 160adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 161adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 162adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 163adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return impl.getInetAddress(); 164adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 165adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 166adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 167adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local port of this server socket or {@code -1} if the socket is 168adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * unbound. 169f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 170adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local port this server is listening on. 171adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 172adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public int getLocalPort() { 173adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 174adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return -1; 175adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 176adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return impl.getLocalPort(); 177adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 178adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 179adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 18006f47d3e721e7032c97f80b3b2c7d25a8e6f2d21Brian Carlstrom * Gets the socket {@link SocketOptions#SO_TIMEOUT accept timeout}. 181f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 182adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 183adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the option cannot be retrieved. 184adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 185adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized int getSoTimeout() throws IOException { 186a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 187adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Integer) impl.getOption(SocketOptions.SO_TIMEOUT)).intValue(); 188adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 189adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 190adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 191adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Invokes the server socket implementation to accept a connection on the 192adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * given socket {@code aSocket}. 193f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 194adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aSocket 195adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the concrete {@code SocketImpl} to accept the connection 196adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * request on. 197adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 198adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the connection cannot be accepted. 199adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 200adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project protected final void implAccept(Socket aSocket) throws IOException { 20155392539fea537abfb6581b474918f9d611fba27Jesse Wilson synchronized (this) { 20255392539fea537abfb6581b474918f9d611fba27Jesse Wilson impl.accept(aSocket.impl); 20355392539fea537abfb6581b474918f9d611fba27Jesse Wilson aSocket.accepted(); 20455392539fea537abfb6581b474918f9d611fba27Jesse Wilson } 205adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 206adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 207adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 208adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the server socket implementation factory of this instance. This 209adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * method may only be invoked with sufficient security privilege and only 210adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * once during the application lifetime. 211f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 212adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aFactory 213adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the streaming socket factory to be used for further socket 214adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * instantiations. 215adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 216adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the factory could not be set or is already set. 217adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 218a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes public static synchronized void setSocketFactory(SocketImplFactory aFactory) throws IOException { 219adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (factory != null) { 220b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Factory already set"); 221adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 222adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project factory = aFactory; 223adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 224adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 225adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 22606f47d3e721e7032c97f80b3b2c7d25a8e6f2d21Brian Carlstrom * Sets the {@link SocketOptions#SO_TIMEOUT accept timeout} in milliseconds for this socket. 2274e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * This accept timeout defines the period the socket will block waiting to 2284e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * accept a connection before throwing an {@code InterruptedIOException}. The value 2294e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * {@code 0} (default) is used to set an infinite timeout. To have effect 2304e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * this option must be set before the blocking method was called. 231f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 2324e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * @param timeout the timeout in milliseconds or 0 for no timeout. 233adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 234adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the option. 235adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 236adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized void setSoTimeout(int timeout) throws SocketException { 237a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 238adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (timeout < 0) { 239b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("timeout < 0"); 240adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 241adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.setOption(SocketOptions.SO_TIMEOUT, Integer.valueOf(timeout)); 242adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 243adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 244adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 245adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns a textual representation of this server socket including the 246adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * address, port and the state. The port field is set to {@code 0} if there 247adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * is no connection to the server socket. 248f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 249adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the textual socket representation. 250adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 251adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project @Override 252adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public String toString() { 253a389b4a499f40379b0b204d7ba1c2057663d95c0Jesse Wilson StringBuilder result = new StringBuilder(64); 254f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes result.append("ServerSocket["); 255adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 256f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes return result.append("unbound]").toString(); 257adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 258f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes return result.append("addr=") 259f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(getInetAddress().getHostName()).append("/") 260adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .append(getInetAddress().getHostAddress()).append( 261f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes ",port=0,localport=") 262f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(getLocalPort()).append("]") 263adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .toString(); 264adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 265adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 266adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 2674d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * Binds this server socket to the given local socket address with a maximum 2684d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * backlog of 50 unaccepted connections. If the {@code localAddr} is set to 2694d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * {@code null} the socket will be bound to an available local address on 2704d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * any free port of the system. 271f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 272adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param localAddr 273adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the local address and port to bind on. 274adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IllegalArgumentException 275adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the {@code SocketAddress} is not supported. 276adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 277adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the socket is already bound or a problem occurs during 278adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * binding. 279adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 280adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void bind(SocketAddress localAddr) throws IOException { 281a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes bind(localAddr, DEFAULT_BACKLOG); 282adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 283adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 284adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 285adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Binds this server socket to the given local socket address. If the 286adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * {@code localAddr} is set to {@code null} the socket will be bound to an 2874d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * available local address on any free port of the system. 288f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 2894d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @param localAddr the local machine address and port to bind on. 2904d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @param backlog the maximum number of unaccepted connections. Passing 0 or 2914d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * a negative value yields the default backlog of 50. 2924d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @throws IllegalArgumentException if the {@code SocketAddress} is not 2934d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * supported. 2944d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @throws IOException if the socket is already bound or a problem occurs 2954d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * during binding. 296adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 297adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void bind(SocketAddress localAddr, int backlog) throws IOException { 298a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 299adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isBound()) { 300b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new BindException("Socket is already bound"); 301adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 302adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project int port = 0; 303051128862ae7c5c031b8ddb763848ed264a63746Lorenzo Colitti InetAddress addr = Inet4Address.ANY; 304adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (localAddr != null) { 305adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!(localAddr instanceof InetSocketAddress)) { 306b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("Local address not an InetSocketAddress: " + 307b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes localAddr.getClass()); 308adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 309adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project InetSocketAddress inetAddr = (InetSocketAddress) localAddr; 310adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if ((addr = inetAddr.getAddress()) == null) { 311b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Host is unresolved: " + inetAddr.getHostName()); 312adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 313adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project port = inetAddr.getPort(); 314adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 315adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 316adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 317adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 318adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.bind(addr, port); 319adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isBound = true; 320a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes impl.listen(backlog > 0 ? backlog : DEFAULT_BACKLOG); 321adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 322adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project close(); 323adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 324adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 325adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 326adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 327adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 328adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 329adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local socket address of this server socket or {@code null} if 330adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the socket is unbound. This is useful on multihomed hosts. 331f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 332adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local socket address and port this socket is bound to. 333adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 334adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public SocketAddress getLocalSocketAddress() { 335adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 336adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 337adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 338adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return new InetSocketAddress(getInetAddress(), getLocalPort()); 339adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 340adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 341adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 342adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns whether this server socket is bound to a local address and port 343adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * or not. 344f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 345adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if this socket is bound, {@code false} otherwise. 346adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 347adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean isBound() { 348adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return isBound; 349adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 350adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 351adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 352adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns whether this server socket is closed or not. 353f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 354adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if this socket is closed, {@code false} otherwise. 355adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 356adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean isClosed() { 357adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return isClosed; 358adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 359adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 360a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes private void checkOpen() throws SocketException { 361adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isClosed()) { 362b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Socket is closed"); 363adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 364adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 365adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 366adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 367adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the value for the socket option {@code SocketOptions.SO_REUSEADDR}. 368f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 369adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param reuse 370adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the socket option setting. 371adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 372adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the option value. 373adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 374adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setReuseAddress(boolean reuse) throws SocketException { 375a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 3760371d85fa3ecb5f162d107cdbff0a99cd987fdccElliott Hughes impl.setOption(SocketOptions.SO_REUSEADDR, Boolean.valueOf(reuse)); 377adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 378adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 379adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 380adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the value of the socket option {@code SocketOptions.SO_REUSEADDR}. 381f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 382adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if the option is enabled, {@code false} otherwise. 383adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 384adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while reading the option value. 385adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 386adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean getReuseAddress() throws SocketException { 387a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 388a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes return ((Boolean) impl.getOption(SocketOptions.SO_REUSEADDR)).booleanValue(); 389adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 390adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 391adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 392a9c6c9013b08934867f71b69a90efce0c1b66918Elliott Hughes * Sets this socket's {@link SocketOptions#SO_SNDBUF receive buffer size}. 393adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 394adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setReceiveBufferSize(int size) throws SocketException { 395a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 396adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (size < 1) { 397b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("size < 1"); 398adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 399adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.setOption(SocketOptions.SO_RCVBUF, Integer.valueOf(size)); 400adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 401adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 402adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 403a9c6c9013b08934867f71b69a90efce0c1b66918Elliott Hughes * Returns this socket's {@link SocketOptions#SO_RCVBUF receive buffer size}. 404adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 405adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public int getReceiveBufferSize() throws SocketException { 406a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes checkOpen(); 407adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Integer) impl.getOption(SocketOptions.SO_RCVBUF)).intValue(); 408adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 409adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 410adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 4110d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * Returns this socket's {@code ServerSocketChannel}, if one exists. A channel is 4120d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * available only if this socket wraps a channel. (That is, you can go from a 4130d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * channel to a socket and back again, but you can't go from an arbitrary socket to a channel.) 4140d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * In practice, this means that the socket must have been created by 4150d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * {@link java.nio.channels.ServerSocketChannel#open}. 416adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 417adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocketChannel getChannel() { 418adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 419adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 420adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 421adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 422adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets performance preferences for connection time, latency and bandwidth. 423adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * <p> 424adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This method does currently nothing. 425f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 426adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param connectionTime 427adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of a short connecting 428adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * time. 429adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param latency 430adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of low latency. 431adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param bandwidth 432adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of high bandwidth. 433adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 434a3b57e9cb41fb00ac607cd330fa73270b564b66cElliott Hughes public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) { 435adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // Our socket implementation only provide one protocol: TCP/IP, so 436adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // we do nothing for this method 437adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 438adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project} 439