ServerSocket.java revision a9c6c9013b08934867f71b69a90efce0c1b66918
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 (SecurityException e) { 152adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project aSocket.close(); 153adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 154adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 155adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project aSocket.close(); 156adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 157adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 158adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return aSocket; 159adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 160adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 161adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 162adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Checks whether the server may listen for connection requests on {@code 163adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * aport}. Throws an exception if the port is outside the valid range 164adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * {@code 0 <= aport <= 65535 }or does not satisfy the security policy. 165f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 166adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aPort 167adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the candidate port to listen on. 168adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 169adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project void checkListen(int aPort) { 170adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (aPort < 0 || aPort > 65535) { 171b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("Port out of range: " + aPort); 172adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 173adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project SecurityManager security = System.getSecurityManager(); 174adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (security != null) { 175adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project security.checkListen(aPort); 176adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 177adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 178adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 179adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 180adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Closes this server socket and its implementation. Any attempt to connect 181adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * to this socket thereafter will fail. 182f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 183adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 184adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while closing this socket. 185adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 186adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void close() throws IOException { 187adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isClosed = true; 188adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.close(); 189adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 190adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 191adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 1923bf03b8be207d0c760bcad5eae5028e854498376Elliott Hughes * Returns the default number of pending connections on a server socket. If 193adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the backlog value maximum is reached, any subsequent incoming request is 194adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * rejected. 195f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 196adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return int the default number of pending connection requests 197adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 198adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project static int defaultBacklog() { 199adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return 50; 200adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 201adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 202adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 203adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local IP address of this server socket or {@code null} if the 204adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * socket is unbound. This is useful for multihomed hosts. 205f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 206adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local address of this server socket. 207adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 208adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public InetAddress getInetAddress() { 209adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 210adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 211adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 212adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return impl.getInetAddress(); 213adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 214adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 215adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 216adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local port of this server socket or {@code -1} if the socket is 217adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * unbound. 218f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 219adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local port this server is listening on. 220adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 221adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public int getLocalPort() { 222adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 223adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return -1; 224adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 225adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return impl.getLocalPort(); 226adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 227adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 228adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 22906f47d3e721e7032c97f80b3b2c7d25a8e6f2d21Brian Carlstrom * Gets the socket {@link SocketOptions#SO_TIMEOUT accept timeout}. 230f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 231adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 232adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the option cannot be retrieved. 233adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 234adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized int getSoTimeout() throws IOException { 235adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isCreated) { 236adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 237adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isCreated) { 238adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 239adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.create(true); 240adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (SocketException e) { 241adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 242adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 243adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw new SocketException(e.toString()); 244adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 245adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isCreated = true; 246adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 247adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 248adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 249adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Integer) impl.getOption(SocketOptions.SO_TIMEOUT)).intValue(); 250adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 251adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 252adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 253adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Invokes the server socket implementation to accept a connection on the 254adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * given socket {@code aSocket}. 255f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 256adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aSocket 257adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the concrete {@code SocketImpl} to accept the connection 258adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * request on. 259adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 260adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the connection cannot be accepted. 261adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 262adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project protected final void implAccept(Socket aSocket) throws IOException { 26355392539fea537abfb6581b474918f9d611fba27Jesse Wilson synchronized (this) { 26455392539fea537abfb6581b474918f9d611fba27Jesse Wilson impl.accept(aSocket.impl); 26555392539fea537abfb6581b474918f9d611fba27Jesse Wilson aSocket.accepted(); 26655392539fea537abfb6581b474918f9d611fba27Jesse Wilson } 26755392539fea537abfb6581b474918f9d611fba27Jesse Wilson SecurityManager security = System.getSecurityManager(); 26855392539fea537abfb6581b474918f9d611fba27Jesse Wilson if (security != null) { 26955392539fea537abfb6581b474918f9d611fba27Jesse Wilson security.checkAccept(aSocket.getInetAddress().getHostAddress(), 27055392539fea537abfb6581b474918f9d611fba27Jesse Wilson aSocket.getPort()); 27155392539fea537abfb6581b474918f9d611fba27Jesse Wilson } 272adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 273adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 274adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 275adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the server socket implementation factory of this instance. This 276adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * method may only be invoked with sufficient security privilege and only 277adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * once during the application lifetime. 278f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 279adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param aFactory 280adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the streaming socket factory to be used for further socket 281adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * instantiations. 282adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 283adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the factory could not be set or is already set. 284adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 285adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public static synchronized void setSocketFactory(SocketImplFactory aFactory) 286adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throws IOException { 287adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project SecurityManager security = System.getSecurityManager(); 288adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (security != null) { 289adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project security.checkSetFactory(); 290adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 291adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (factory != null) { 292b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Factory already set"); 293adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 294adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project factory = aFactory; 295adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 296adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 297adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 29806f47d3e721e7032c97f80b3b2c7d25a8e6f2d21Brian Carlstrom * Sets the {@link SocketOptions#SO_TIMEOUT accept timeout} in milliseconds for this socket. 2994e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * This accept timeout defines the period the socket will block waiting to 3004e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * accept a connection before throwing an {@code InterruptedIOException}. The value 3014e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * {@code 0} (default) is used to set an infinite timeout. To have effect 3024e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * this option must be set before the blocking method was called. 303f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 3044e4000ed98f9056639fba0713a3fd3caacf9746cElliott Hughes * @param timeout the timeout in milliseconds or 0 for no timeout. 305adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 306adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the option. 307adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 308adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public synchronized void setSoTimeout(int timeout) throws SocketException { 309adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 310adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (timeout < 0) { 311b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("timeout < 0"); 312adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 313adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.setOption(SocketOptions.SO_TIMEOUT, Integer.valueOf(timeout)); 314adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 315adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 316adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 317adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns a textual representation of this server socket including the 318adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * address, port and the state. The port field is set to {@code 0} if there 319adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * is no connection to the server socket. 320f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 321adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the textual socket representation. 322adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 323adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project @Override 324adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public String toString() { 325a389b4a499f40379b0b204d7ba1c2057663d95c0Jesse Wilson StringBuilder result = new StringBuilder(64); 326f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes result.append("ServerSocket["); 327adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 328f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes return result.append("unbound]").toString(); 329adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 330f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes return result.append("addr=") 331f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(getInetAddress().getHostName()).append("/") 332adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .append(getInetAddress().getHostAddress()).append( 333f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes ",port=0,localport=") 334f33eae7e84eb6d3b0f4e86b59605bb3de73009f3Elliott Hughes .append(getLocalPort()).append("]") 335adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .toString(); 336adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 337adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 338adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 3394d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * Binds this server socket to the given local socket address with a maximum 3404d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * backlog of 50 unaccepted connections. If the {@code localAddr} is set to 3414d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * {@code null} the socket will be bound to an available local address on 3424d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * any free port of the system. 343f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 344adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param localAddr 345adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the local address and port to bind on. 346adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IllegalArgumentException 347adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the {@code SocketAddress} is not supported. 348adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws IOException 349adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if the socket is already bound or a problem occurs during 350adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * binding. 351adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 352adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void bind(SocketAddress localAddr) throws IOException { 353adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project bind(localAddr, defaultBacklog()); 354adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 355adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 356adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 357adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Binds this server socket to the given local socket address. If the 358adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * {@code localAddr} is set to {@code null} the socket will be bound to an 3594d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * available local address on any free port of the system. 360f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 3614d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @param localAddr the local machine address and port to bind on. 3624d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @param backlog the maximum number of unaccepted connections. Passing 0 or 3634d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * a negative value yields the default backlog of 50. 3644d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @throws IllegalArgumentException if the {@code SocketAddress} is not 3654d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * supported. 3664d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * @throws IOException if the socket is already bound or a problem occurs 3674d743816cad738bfeccf6dc210fc7c9bd84a8777Jesse Wilson * during binding. 368adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 369adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void bind(SocketAddress localAddr, int backlog) throws IOException { 370adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 371adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isBound()) { 372b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new BindException("Socket is already bound"); 373adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 374adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project int port = 0; 375051128862ae7c5c031b8ddb763848ed264a63746Lorenzo Colitti InetAddress addr = Inet4Address.ANY; 376adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (localAddr != null) { 377adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!(localAddr instanceof InetSocketAddress)) { 378b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("Local address not an InetSocketAddress: " + 379b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes localAddr.getClass()); 380adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 381adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project InetSocketAddress inetAddr = (InetSocketAddress) localAddr; 382adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if ((addr = inetAddr.getAddress()) == null) { 383b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Host is unresolved: " + inetAddr.getHostName()); 384adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 385adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project port = inetAddr.getPort(); 386adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 387adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project SecurityManager security = System.getSecurityManager(); 388adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (security != null) { 389adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project security.checkListen(port); 390adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 391adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 392adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 393adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 394adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.bind(addr, port); 395adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isBound = true; 396adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.listen(backlog > 0 ? backlog : defaultBacklog()); 397adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 398adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project close(); 399adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 400adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 401adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 402adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 403adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 404adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 405adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the local socket address of this server socket or {@code null} if 406adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the socket is unbound. This is useful on multihomed hosts. 407f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 408adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return the local socket address and port this socket is bound to. 409adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 410adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public SocketAddress getLocalSocketAddress() { 411adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!isBound()) { 412adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 413adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 414adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return new InetSocketAddress(getInetAddress(), getLocalPort()); 415adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 416adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 417adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 418adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns whether this server socket is bound to a local address and port 419adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * or not. 420f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 421adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if this socket is bound, {@code false} otherwise. 422adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 423adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean isBound() { 424adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return isBound; 425adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 426adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 427adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 428adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Returns whether this server socket is closed or not. 429f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 430adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if this socket is closed, {@code false} otherwise. 431adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 432adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean isClosed() { 433adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return isClosed; 434adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 435adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 436adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 437adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Checks whether the socket is closed, and throws an exception. 438adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 439adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project private void checkClosedAndCreate(boolean create) throws SocketException { 440adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isClosed()) { 441b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new SocketException("Socket is closed"); 442adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 443adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 444adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (!create || isCreated) { 445adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return; 446adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 447adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 448adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project synchronized (this) { 449adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (isCreated) { 450adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return; 451adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 452adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project try { 453adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.create(true); 454adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (SocketException e) { 455adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw e; 456adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } catch (IOException e) { 457adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project throw new SocketException(e.toString()); 458adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 459adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project isCreated = true; 460adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 461adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 462adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 463adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 464adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets the value for the socket option {@code SocketOptions.SO_REUSEADDR}. 465f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 466adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param reuse 467adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the socket option setting. 468adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 469adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while setting the option value. 470adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 471adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setReuseAddress(boolean reuse) throws SocketException { 472adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 4730371d85fa3ecb5f162d107cdbff0a99cd987fdccElliott Hughes impl.setOption(SocketOptions.SO_REUSEADDR, Boolean.valueOf(reuse)); 474adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 475adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 476adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 477adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Gets the value of the socket option {@code SocketOptions.SO_REUSEADDR}. 478f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 479adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @return {@code true} if the option is enabled, {@code false} otherwise. 480adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @throws SocketException 481adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * if an error occurs while reading the option value. 482adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 483adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public boolean getReuseAddress() throws SocketException { 484adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 485adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Boolean) impl.getOption(SocketOptions.SO_REUSEADDR)) 486adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project .booleanValue(); 487adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 488adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 489adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 490a9c6c9013b08934867f71b69a90efce0c1b66918Elliott Hughes * Sets this socket's {@link SocketOptions#SO_SNDBUF receive buffer size}. 491adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 492adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setReceiveBufferSize(int size) throws SocketException { 493adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 494adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project if (size < 1) { 495b1396870f92135aa140bd2b86221768dea5bc11dElliott Hughes throw new IllegalArgumentException("size < 1"); 496adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 497adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project impl.setOption(SocketOptions.SO_RCVBUF, Integer.valueOf(size)); 498adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 499adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 500adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 501a9c6c9013b08934867f71b69a90efce0c1b66918Elliott Hughes * Returns this socket's {@link SocketOptions#SO_RCVBUF receive buffer size}. 502adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 503adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public int getReceiveBufferSize() throws SocketException { 504adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project checkClosedAndCreate(true); 505adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return ((Integer) impl.getOption(SocketOptions.SO_RCVBUF)).intValue(); 506adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 507adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 508adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 5090d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * Returns this socket's {@code ServerSocketChannel}, if one exists. A channel is 5100d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * available only if this socket wraps a channel. (That is, you can go from a 5110d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * channel to a socket and back again, but you can't go from an arbitrary socket to a channel.) 5120d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * In practice, this means that the socket must have been created by 5130d93c38cc3c7a5001aece8a18cafc6d1fc7551f3Elliott Hughes * {@link java.nio.channels.ServerSocketChannel#open}. 514adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 515adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public ServerSocketChannel getChannel() { 516adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project return null; 517adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 518adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project 519adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project /** 520adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * Sets performance preferences for connection time, latency and bandwidth. 521adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * <p> 522adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * This method does currently nothing. 523f5597e626ecf7949d249dea08c1a2964d890ec11Jesse Wilson * 524adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param connectionTime 525adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of a short connecting 526adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * time. 527adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param latency 528adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of low latency. 529adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * @param bandwidth 530adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project * the value representing the importance of high bandwidth. 531adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project */ 532adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project public void setPerformancePreferences(int connectionTime, int latency, 533adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project int bandwidth) { 534adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // Our socket implementation only provide one protocol: TCP/IP, so 535adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project // we do nothing for this method 536adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project } 537adc854b798c1cfe3bfd4c27d68d5cee38ca617daThe Android Open Source Project} 538