ServerSocket.java revision ad41624e761bcf1af9c8008eb45187fc13983717
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; 22f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilsonimport org.apache.harmony.luni.net.PlainServerSocketImpl; 23adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 24adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project/** 25adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This class represents a server-side socket that waits for incoming client 26adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * connections. A {@code ServerSocket} handles the requests and sends back an 27adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * appropriate reply. The actual tasks that a server socket must accomplish are 28adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * implemented by an internal {@code SocketImpl} instance. 29adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 30adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Projectpublic class ServerSocket { 31adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 32adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project SocketImpl impl; 33adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 34adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project static SocketImplFactory factory; 35adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 36adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private volatile boolean isCreated; 37adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 38adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private boolean isBound; 39adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 40adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private boolean isClosed; 41f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson 42adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 43adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Constructs a new {@code ServerSocket} instance which is not bound to any 44adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * port. The default number of pending connections may be backlogged. 45f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 46adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 47adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while creating the server socket. 48adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 49adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocket() throws IOException { 50adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl = factory != null ? factory.createSocketImpl() 51f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson : new PlainServerSocketImpl(); 52adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 53adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 54adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 55f1072c37db1f647ab6bbbb9b866b699ef1e19ec3Elliott Hughes * Unspecified constructor needed by ServerSocketChannelImpl.ServerSocketAdapter. 56adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * 57adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @hide 58adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 59adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project protected ServerSocket(SocketImpl impl) { 60adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project this.impl = impl; 61adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 62adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 63adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 64adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Constructs a new {@code ServerSocket} instance bound to the nominated 65adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * port on the localhost. The default number of pending connections may be 66adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * backlogged. If {@code aport} is 0 a free port is assigned to the socket. 67f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 68adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aport 69adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the port number to listen for connection requests on. 70adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 71adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while creating the server socket. 72adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 73adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocket(int aport) throws IOException { 74051128862ae7c5c031b8ddb763848ed264a63746Lorenzo Colitti this(aport, defaultBacklog(), Inet4Address.ANY); 75adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 76adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 77adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 78adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Constructs a new {@code ServerSocket} instance bound to the nominated 79adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * port on the localhost. The number of pending connections that may be 80adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * backlogged is specified by {@code backlog}. If {@code aport} is 0 a free 81adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * port is assigned to the socket. 82f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 83adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aport 84adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the port number to listen for connection requests on. 85adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param backlog 86adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the number of pending connection requests, before requests 87adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * will be rejected. 88adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 89adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while creating the server socket. 90adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 91adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocket(int aport, int backlog) throws IOException { 92051128862ae7c5c031b8ddb763848ed264a63746Lorenzo Colitti this(aport, backlog, Inet4Address.ANY); 93adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 94adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 95adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 96adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Constructs a new {@code ServerSocket} instance bound to the nominated 97adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * local host address and port. The number of pending connections that may 98adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * be backlogged is specified by {@code backlog}. If {@code aport} is 0 a 99adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * free port is assigned to the socket. 100f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 101adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aport 102adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the port number to listen for connection requests on. 103adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param localAddr 104adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the local machine address to bind on. 105adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param backlog 106adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the number of pending connection requests, before requests 107adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * will be rejected. 108adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 109adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while creating the server socket. 110adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 111adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocket(int aport, int backlog, InetAddress localAddr) 112adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throws IOException { 113adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project super(); 114adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkListen(aport); 115adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl = factory != null ? factory.createSocketImpl() 116f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson : new PlainServerSocketImpl(); 117051128862ae7c5c031b8ddb763848ed264a63746Lorenzo Colitti InetAddress addr = localAddr == null ? Inet4Address.ANY : localAddr; 118adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 119adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 120adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.create(true); 121adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isCreated = true; 122adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 123adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.bind(addr, aport); 124adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isBound = true; 125adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.listen(backlog > 0 ? backlog : defaultBacklog()); 126adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 127adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project close(); 128adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 129adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 130adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 131adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 132adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 133adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 134adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Waits for an incoming request and blocks until the connection is opened. 135adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This method returns a socket object representing the just opened 136adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * connection. 137f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 138adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the connection representing socket. 139adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 140adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while accepting a new connection. 141adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 142adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public Socket accept() throws IOException { 143adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(false); 144adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 145b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Socket is not bound"); 146adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 147adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 148adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project Socket aSocket = new Socket(); 149adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 15055392539fea537abfb6581b474918f9d611fba27Jesse Wilson implAccept(aSocket); 151adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 152adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project aSocket.close(); 153adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 154adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 155adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return aSocket; 156adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 157adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 158ad41624e761bcf1af9c8008eb45187fc13983717Elliott Hughes private void checkListen(int aPort) { 159adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (aPort < 0 || aPort > 65535) { 160b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("Port out of range: " + aPort); 161adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 162adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 163adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 164adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 165adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Closes this server socket and its implementation. Any attempt to connect 166adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * to this socket thereafter will fail. 167f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 168adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 169adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while closing this socket. 170adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 171adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void close() throws IOException { 172adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isClosed = true; 173adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.close(); 174adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 175adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 176adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 1773bf03b8be207d0c760bcad5eae5028e854498376Elliott Hughes * Returns the default number of pending connections on a server socket. If 178adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the backlog value maximum is reached, any subsequent incoming request is 179adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * rejected. 180f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 181adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return int the default number of pending connection requests 182adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 183adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project static int defaultBacklog() { 184adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return 50; 185adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 186adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 187adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 188adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local IP address of this server socket or {@code null} if the 189adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * socket is unbound. This is useful for multihomed hosts. 190f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 191adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local address of this server socket. 192adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 193adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public InetAddress getInetAddress() { 194adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 195adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 196adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 197adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return impl.getInetAddress(); 198adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 199adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 200adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 201adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local port of this server socket or {@code -1} if the socket is 202adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * unbound. 203f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 204adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local port this server is listening on. 205adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 206adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public int getLocalPort() { 207adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 208adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return -1; 209adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 210adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return impl.getLocalPort(); 211adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 212adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 213adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 21406f47d3e721e7032c97f80b3b2c7d25a8e6f2d21Brian Carlstrom * Gets the socket {@link SocketOptions#SO_TIMEOUT accept timeout}. 215f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 216adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 217adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the option cannot be retrieved. 218adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 219adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized int getSoTimeout() throws IOException { 220adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isCreated) { 221adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 222adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isCreated) { 223adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 224adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.create(true); 225adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (SocketException e) { 226adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 227adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 228adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw new SocketException(e.toString()); 229adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 230adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isCreated = true; 231adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 232adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 233adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 234adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Integer) impl.getOption(SocketOptions.SO_TIMEOUT)).intValue(); 235adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 236adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 237adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 238adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Invokes the server socket implementation to accept a connection on the 239adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * given socket {@code aSocket}. 240f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 241adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aSocket 242adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the concrete {@code SocketImpl} to accept the connection 243adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * request on. 244adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 245adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the connection cannot be accepted. 246adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 247adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project protected final void implAccept(Socket aSocket) throws IOException { 24855392539fea537abfb6581b474918f9d611fba27Jesse Wilson synchronized (this) { 24955392539fea537abfb6581b474918f9d611fba27Jesse Wilson impl.accept(aSocket.impl); 25055392539fea537abfb6581b474918f9d611fba27Jesse Wilson aSocket.accepted(); 25155392539fea537abfb6581b474918f9d611fba27Jesse Wilson } 252adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 253adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 254adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 255adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the server socket implementation factory of this instance. This 256adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * method may only be invoked with sufficient security privilege and only 257adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * once during the application lifetime. 258f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 259adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aFactory 260adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the streaming socket factory to be used for further socket 261adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * instantiations. 262adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 263adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the factory could not be set or is already set. 264adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 265adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public static synchronized void setSocketFactory(SocketImplFactory aFactory) 266adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throws IOException { 267adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (factory != null) { 268b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Factory already set"); 269adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 270adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project factory = aFactory; 271adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 272adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 273adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 27406f47d3e721e7032c97f80b3b2c7d25a8e6f2d21Brian Carlstrom * Sets the {@link SocketOptions#SO_TIMEOUT accept timeout} in milliseconds for this socket. 2754e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * This accept timeout defines the period the socket will block waiting to 2764e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * accept a connection before throwing an {@code InterruptedIOException}. The value 2774e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * {@code 0} (default) is used to set an infinite timeout. To have effect 2784e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * this option must be set before the blocking method was called. 279f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 2804e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * @param timeout the timeout in milliseconds or 0 for no timeout. 281adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 282adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the option. 283adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 284adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized void setSoTimeout(int timeout) throws SocketException { 285adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 286adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (timeout < 0) { 287b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("timeout < 0"); 288adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 289adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.setOption(SocketOptions.SO_TIMEOUT, Integer.valueOf(timeout)); 290adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 291adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 292adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 293adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns a textual representation of this server socket including the 294adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * address, port and the state. The port field is set to {@code 0} if there 295adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * is no connection to the server socket. 296f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 297adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the textual socket representation. 298adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 299adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project @Override 300adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public String toString() { 301a389b4a499f40379b0b204d7ba1c2057663d95c0Jesse Wilson StringBuilder result = new StringBuilder(64); 302f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes result.append("ServerSocket["); 303adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 304f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes return result.append("unbound]").toString(); 305adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 306f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes return result.append("addr=") 307f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(getInetAddress().getHostName()).append("/") 308adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .append(getInetAddress().getHostAddress()).append( 309f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes ",port=0,localport=") 310f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(getLocalPort()).append("]") 311adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .toString(); 312adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 313adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 314adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 3154d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * Binds this server socket to the given local socket address with a maximum 3164d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * backlog of 50 unaccepted connections. If the {@code localAddr} is set to 3174d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * {@code null} the socket will be bound to an available local address on 3184d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * any free port of the system. 319f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 320adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param localAddr 321adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the local address and port to bind on. 322adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IllegalArgumentException 323adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the {@code SocketAddress} is not supported. 324adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 325adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the socket is already bound or a problem occurs during 326adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * binding. 327adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 328adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void bind(SocketAddress localAddr) throws IOException { 329adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project bind(localAddr, defaultBacklog()); 330adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 331adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 332adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 333adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Binds this server socket to the given local socket address. If the 334adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * {@code localAddr} is set to {@code null} the socket will be bound to an 3354d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * available local address on any free port of the system. 336f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 3374d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @param localAddr the local machine address and port to bind on. 3384d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @param backlog the maximum number of unaccepted connections. Passing 0 or 3394d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * a negative value yields the default backlog of 50. 3404d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @throws IllegalArgumentException if the {@code SocketAddress} is not 3414d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * supported. 3424d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @throws IOException if the socket is already bound or a problem occurs 3434d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * during binding. 344adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 345adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void bind(SocketAddress localAddr, int backlog) throws IOException { 346adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 347adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isBound()) { 348b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new BindException("Socket is already bound"); 349adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 350adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project int port = 0; 351051128862ae7c5c031b8ddb763848ed264a63746Lorenzo Colitti InetAddress addr = Inet4Address.ANY; 352adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (localAddr != null) { 353adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!(localAddr instanceof InetSocketAddress)) { 354b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("Local address not an InetSocketAddress: " + 355b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes localAddr.getClass()); 356adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 357adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project InetSocketAddress inetAddr = (InetSocketAddress) localAddr; 358adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if ((addr = inetAddr.getAddress()) == null) { 359b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Host is unresolved: " + inetAddr.getHostName()); 360adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 361adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project port = inetAddr.getPort(); 362adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 363adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 364adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 365adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 366adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.bind(addr, port); 367adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isBound = true; 368adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.listen(backlog > 0 ? backlog : defaultBacklog()); 369adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 370adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project close(); 371adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 372adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 373adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 374adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 375adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 376adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 377adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local socket address of this server socket or {@code null} if 378adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the socket is unbound. This is useful on multihomed hosts. 379f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 380adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local socket address and port this socket is bound to. 381adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 382adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public SocketAddress getLocalSocketAddress() { 383adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 384adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 385adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 386adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return new InetSocketAddress(getInetAddress(), getLocalPort()); 387adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 388adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 389adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 390adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns whether this server socket is bound to a local address and port 391adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * or not. 392f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 393adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if this socket is bound, {@code false} otherwise. 394adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 395adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean isBound() { 396adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return isBound; 397adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 398adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 399adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 400adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns whether this server socket is closed or not. 401f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 402adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if this socket is closed, {@code false} otherwise. 403adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 404adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean isClosed() { 405adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return isClosed; 406adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 407adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 408adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 409adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Checks whether the socket is closed, and throws an exception. 410adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 411adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private void checkClosedAndCreate(boolean create) throws SocketException { 412adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isClosed()) { 413b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Socket is closed"); 414adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 415adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 416adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!create || isCreated) { 417adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return; 418adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 419adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 420adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 421adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isCreated) { 422adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return; 423adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 424adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 425adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.create(true); 426adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (SocketException e) { 427adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 428adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 429adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw new SocketException(e.toString()); 430adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 431adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isCreated = true; 432adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 433adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 434adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 435adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 436adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the value for the socket option {@code SocketOptions.SO_REUSEADDR}. 437f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 438adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param reuse 439adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the socket option setting. 440adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 441adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the option value. 442adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 443adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setReuseAddress(boolean reuse) throws SocketException { 444adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 4450371d85fa3ecb5f162d107cdbff0a99cd987fdccElliott Hughes impl.setOption(SocketOptions.SO_REUSEADDR, Boolean.valueOf(reuse)); 446adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 447adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 448adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 449adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the value of the socket option {@code SocketOptions.SO_REUSEADDR}. 450f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 451adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if the option is enabled, {@code false} otherwise. 452adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 453adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while reading the option value. 454adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 455adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean getReuseAddress() throws SocketException { 456adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 457adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Boolean) impl.getOption(SocketOptions.SO_REUSEADDR)) 458adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .booleanValue(); 459adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 460adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 461adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 462adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the server socket receive buffer size {@code 463adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * SocketOptions.SO_RCVBUF}. 464f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 465adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param size 466adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the buffer size in bytes. 467adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 468adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the size or the size is 469adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * invalid. 470adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 471adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setReceiveBufferSize(int size) throws SocketException { 472adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 473adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (size < 1) { 474b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("size < 1"); 475adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 476adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.setOption(SocketOptions.SO_RCVBUF, Integer.valueOf(size)); 477adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 478adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 479adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 480adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the value for the receive buffer size socket option {@code 481adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * SocketOptions.SO_RCVBUF}. 482f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 483adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the receive buffer size of this socket. 484adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 485adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while reading the option value. 486adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 487adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public int getReceiveBufferSize() throws SocketException { 488adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 489adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Integer) impl.getOption(SocketOptions.SO_RCVBUF)).intValue(); 490adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 491adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 492adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 4930d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * Returns this socket's {@code ServerSocketChannel}, if one exists. A channel is 4940d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * available only if this socket wraps a channel. (That is, you can go from a 4950d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * channel to a socket and back again, but you can't go from an arbitrary socket to a channel.) 4960d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * In practice, this means that the socket must have been created by 4970d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * {@link java.nio.channels.ServerSocketChannel#open}. 498adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 499adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocketChannel getChannel() { 500adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 501adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 502adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 503adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 504adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets performance preferences for connection time, latency and bandwidth. 505adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * <p> 506adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This method does currently nothing. 507f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 508adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param connectionTime 509adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of a short connecting 510adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * time. 511adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param latency 512adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of low latency. 513adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param bandwidth 514adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of high bandwidth. 515adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 516adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setPerformancePreferences(int connectionTime, int latency, 517adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project int bandwidth) { 518adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // Our socket implementation only provide one protocol: TCP/IP, so 519adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // we do nothing for this method 520adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 521adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project} 522