Showing the changes to java/pkg/sun/nio/ch/ServerSocketAdaptor.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.nio.ch; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.net.*; | |
| 30 | +import java.nio.channels.*; | |
| 31 | + | |
| 32 | + | |
| 33 | +// Make a server-socket channel look like a server socket. | |
| 34 | +// | |
| 35 | +// The methods in this class are defined in exactly the same order as in | |
| 36 | +// java.net.ServerSocket so as to simplify tracking future changes to that | |
| 37 | +// class. | |
| 38 | +// | |
| 39 | + | |
| 40 | +public class ServerSocketAdaptor // package-private | |
| 41 | + extends ServerSocket | |
| 42 | +{ | |
| 43 | + | |
| 44 | + // The channel being adapted | |
| 45 | + private final ServerSocketChannelImpl ssc; | |
| 46 | + | |
| 47 | + // Timeout "option" value for accepts | |
| 48 | + private volatile int timeout = 0; | |
| 49 | + | |
| 50 | + public static ServerSocket create(ServerSocketChannelImpl ssc) { | |
| 51 | + try { | |
| 52 | + return new ServerSocketAdaptor(ssc); | |
| 53 | + } catch (IOException x) { | |
| 54 | + throw new Error(x); | |
| 55 | + } | |
| 56 | + } | |
| 57 | + | |
| 58 | + // ## super will create a useless impl | |
| 59 | + private ServerSocketAdaptor(ServerSocketChannelImpl ssc) | |
| 60 | + throws IOException | |
| 61 | + { | |
| 62 | + this.ssc = ssc; | |
| 63 | + } | |
| 64 | + | |
| 65 | + | |
| 66 | + public void bind(SocketAddress local) throws IOException { | |
| 67 | + bind(local, 50); | |
| 68 | + } | |
| 69 | + | |
| 70 | + public void bind(SocketAddress local, int backlog) throws IOException { | |
| 71 | + if (local == null) | |
| 72 | + local = new InetSocketAddress(0); | |
| 73 | + try { | |
| 74 | + ssc.bind(local, backlog); | |
| 75 | + } catch (Exception x) { | |
| 76 | + Net.translateException(x); | |
| 77 | + } | |
| 78 | + } | |
| 79 | + | |
| 80 | + public InetAddress getInetAddress() { | |
| 81 | + if (!ssc.isBound()) | |
| 82 | + return null; | |
| 83 | + return Net.asInetSocketAddress(ssc.localAddress()).getAddress(); | |
| 84 | + } | |
| 85 | + | |
| 86 | + public int getLocalPort() { | |
| 87 | + if (!ssc.isBound()) | |
| 88 | + return -1; | |
| 89 | + return Net.asInetSocketAddress(ssc.localAddress()).getPort(); | |
| 90 | + } | |
| 91 | + | |
| 92 | + | |
| 93 | + public Socket accept() throws IOException { | |
| 94 | + synchronized (ssc.blockingLock()) { | |
| 95 | + if (!ssc.isBound()) | |
| 96 | + throw new IllegalBlockingModeException(); | |
| 97 | + try { | |
| 98 | + if (timeout == 0) { | |
| 99 | + SocketChannel sc = ssc.accept(); | |
| 100 | + if (sc == null && !ssc.isBlocking()) | |
| 101 | + throw new IllegalBlockingModeException(); | |
| 102 | + return sc.socket(); | |
| 103 | + } | |
| 104 | + | |
| 105 | + // Implement timeout with a selector | |
| 106 | + SelectionKey sk = null; | |
| 107 | + Selector sel = null; | |
| 108 | + ssc.configureBlocking(false); | |
| 109 | + try { | |
| 110 | + SocketChannel sc; | |
| 111 | + if ((sc = ssc.accept()) != null) | |
| 112 | + return sc.socket(); | |
| 113 | + sel = Util.getTemporarySelector(ssc); | |
| 114 | + sk = ssc.register(sel, SelectionKey.OP_ACCEPT); | |
| 115 | + long to = timeout; | |
| 116 | + for (;;) { | |
| 117 | + if (!ssc.isOpen()) | |
| 118 | + throw new ClosedChannelException(); | |
| 119 | + long st = System.currentTimeMillis(); | |
| 120 | + int ns = sel.select(to); | |
| 121 | + if (ns > 0 && | |
| 122 | + sk.isAcceptable() && ((sc = ssc.accept()) != null)) | |
| 123 | + return sc.socket(); | |
| 124 | + sel.selectedKeys().remove(sk); | |
| 125 | + to -= System.currentTimeMillis() - st; | |
| 126 | + if (to <= 0) | |
| 127 | + throw new SocketTimeoutException(); | |
| 128 | + } | |
| 129 | + } finally { | |
| 130 | + if (sk != null) | |
| 131 | + sk.cancel(); | |
| 132 | + if (ssc.isOpen()) | |
| 133 | + ssc.configureBlocking(true); | |
| 134 | + if (sel != null) | |
| 135 | + Util.releaseTemporarySelector(sel); | |
| 136 | + } | |
| 137 | + | |
| 138 | + } catch (Exception x) { | |
| 139 | + Net.translateException(x); | |
| 140 | + assert false; | |
| 141 | + return null; // Never happens | |
| 142 | + } | |
| 143 | + } | |
| 144 | + } | |
| 145 | + | |
| 146 | + public void close() throws IOException { | |
| 147 | + ssc.close(); | |
| 148 | + } | |
| 149 | + | |
| 150 | + public ServerSocketChannel getChannel() { | |
| 151 | + return ssc; | |
| 152 | + } | |
| 153 | + | |
| 154 | + public boolean isBound() { | |
| 155 | + return ssc.isBound(); | |
| 156 | + } | |
| 157 | + | |
| 158 | + public boolean isClosed() { | |
| 159 | + return !ssc.isOpen(); | |
| 160 | + } | |
| 161 | + | |
| 162 | + public void setSoTimeout(int timeout) throws SocketException { | |
| 163 | + this.timeout = timeout; | |
| 164 | + } | |
| 165 | + | |
| 166 | + public int getSoTimeout() throws SocketException { | |
| 167 | + return timeout; | |
| 168 | + } | |
| 169 | + | |
| 170 | + public void setReuseAddress(boolean on) throws SocketException { | |
| 171 | + try { | |
| 172 | + ssc.setOption(StandardSocketOptions.SO_REUSEADDR, on); | |
| 173 | + } catch (IOException x) { | |
| 174 | + Net.translateToSocketException(x); | |
| 175 | + } | |
| 176 | + } | |
| 177 | + | |
| 178 | + public boolean getReuseAddress() throws SocketException { | |
| 179 | + try { | |
| 180 | + return ssc.getOption(StandardSocketOptions.SO_REUSEADDR).booleanValue(); | |
| 181 | + } catch (IOException x) { | |
| 182 | + Net.translateToSocketException(x); | |
| 183 | + return false; // Never happens | |
| 184 | + } | |
| 185 | + } | |
| 186 | + | |
| 187 | + public String toString() { | |
| 188 | + if (!isBound()) | |
| 189 | + return "ServerSocket[unbound]"; | |
| 190 | + return "ServerSocket[addr=" + getInetAddress() + | |
| 191 | + // ",port=" + getPort() + | |
| 192 | + ",localport=" + getLocalPort() + "]"; | |
| 193 | + } | |
| 194 | + | |
| 195 | + public void setReceiveBufferSize(int size) throws SocketException { | |
| 196 | + // size 0 valid for ServerSocketChannel, invalid for ServerSocket | |
| 197 | + if (size <= 0) | |
| 198 | + throw new IllegalArgumentException("size cannot be 0 or negative"); | |
| 199 | + try { | |
| 200 | + ssc.setOption(StandardSocketOptions.SO_RCVBUF, size); | |
| 201 | + } catch (IOException x) { | |
| 202 | + Net.translateToSocketException(x); | |
| 203 | + } | |
| 204 | + } | |
| 205 | + | |
| 206 | + public int getReceiveBufferSize() throws SocketException { | |
| 207 | + try { | |
| 208 | + return ssc.getOption(StandardSocketOptions.SO_RCVBUF).intValue(); | |
| 209 | + } catch (IOException x) { | |
| 210 | + Net.translateToSocketException(x); | |
| 211 | + return -1; // Never happens | |
| 212 | + } | |
| 213 | + } | |
| 214 | + | |
| 215 | +} | |