author | robm |
Thu, 04 Oct 2012 19:53:08 +0100 | |
changeset 14025 | fbebe005a3ee |
parent 11106 | 802bb70d8fa2 |
child 14342 | 8435a30053c1 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
2 | 10 |
* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.nio.ch; |
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import java.io.*; |
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import java.lang.ref.*; |
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import java.net.*; |
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import java.nio.*; |
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import java.nio.channels.*; |
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import java.security.AccessController; |
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import java.security.PrivilegedExceptionAction; |
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import java.util.*; |
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// Make a socket channel look like a socket. |
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// |
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// The only aspects of java.net.Socket-hood that we don't attempt to emulate |
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// here are the interrupted-I/O exceptions (which our Solaris implementations |
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// attempt to support) and the sending of urgent data. Otherwise an adapted |
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// socket should look enough like a real java.net.Socket to fool most of the |
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// developers most of the time, right down to the exception message strings. |
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// |
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// The methods in this class are defined in exactly the same order as in |
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// java.net.Socket so as to simplify tracking future changes to that class. |
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// |
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50 |
public class SocketAdaptor |
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extends Socket |
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{ |
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// The channel being adapted |
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private final SocketChannelImpl sc; |
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// Timeout "option" value for reads |
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private volatile int timeout = 0; |
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private SocketAdaptor(SocketChannelImpl sc) throws SocketException { |
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super((SocketImpl) null); |
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this.sc = sc; |
63 |
} |
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public static Socket create(SocketChannelImpl sc) { |
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try { |
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return new SocketAdaptor(sc); |
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} catch (SocketException e) { |
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throw new InternalError("Should not reach here"); |
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} |
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} |
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public SocketChannel getChannel() { |
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return sc; |
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} |
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// Override this method just to protect against changes in the superclass |
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// |
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public void connect(SocketAddress remote) throws IOException { |
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connect(remote, 0); |
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} |
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public void connect(SocketAddress remote, int timeout) throws IOException { |
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if (remote == null) |
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throw new IllegalArgumentException("connect: The address can't be null"); |
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if (timeout < 0) |
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throw new IllegalArgumentException("connect: timeout can't be negative"); |
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synchronized (sc.blockingLock()) { |
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if (!sc.isBlocking()) |
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throw new IllegalBlockingModeException(); |
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try { |
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if (timeout == 0) { |
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sc.connect(remote); |
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return; |
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} |
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100 |
sc.configureBlocking(false); |
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101 |
try { |
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102 |
if (sc.connect(remote)) |
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103 |
return; |
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104 |
long to = timeout; |
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105 |
for (;;) { |
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if (!sc.isOpen()) |
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107 |
throw new ClosedChannelException(); |
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108 |
long st = System.currentTimeMillis(); |
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int result = sc.poll(PollArrayWrapper.POLLCONN, to); |
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if (result > 0 && sc.finishConnect()) |
2 | 112 |
break; |
113 |
to -= System.currentTimeMillis() - st; |
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114 |
if (to <= 0) { |
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115 |
try { |
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116 |
sc.close(); |
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117 |
} catch (IOException x) { } |
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118 |
throw new SocketTimeoutException(); |
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119 |
} |
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120 |
} |
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121 |
} finally { |
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122 |
if (sc.isOpen()) |
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123 |
sc.configureBlocking(true); |
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124 |
} |
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125 |
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126 |
} catch (Exception x) { |
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127 |
Net.translateException(x, true); |
|
128 |
} |
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129 |
} |
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130 |
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131 |
} |
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132 |
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133 |
public void bind(SocketAddress local) throws IOException { |
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134 |
try { |
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135 |
sc.bind(local); |
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136 |
} catch (Exception x) { |
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137 |
Net.translateException(x); |
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138 |
} |
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139 |
} |
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140 |
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141 |
public InetAddress getInetAddress() { |
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SocketAddress remote = sc.remoteAddress(); |
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if (remote == null) { |
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return null; |
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} else { |
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return ((InetSocketAddress)remote).getAddress(); |
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} |
2 | 148 |
} |
149 |
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150 |
public InetAddress getLocalAddress() { |
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if (sc.isOpen()) { |
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SocketAddress local = sc.localAddress(); |
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if (local != null) |
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return ((InetSocketAddress)local).getAddress(); |
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} |
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return new InetSocketAddress(0).getAddress(); |
2 | 157 |
} |
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159 |
public int getPort() { |
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SocketAddress remote = sc.remoteAddress(); |
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if (remote == null) { |
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return 0; |
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} else { |
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return ((InetSocketAddress)remote).getPort(); |
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} |
2 | 166 |
} |
167 |
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168 |
public int getLocalPort() { |
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SocketAddress local = sc.localAddress(); |
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if (local == null) { |
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return -1; |
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} else { |
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return ((InetSocketAddress)local).getPort(); |
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} |
2 | 175 |
} |
176 |
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177 |
private class SocketInputStream |
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178 |
extends ChannelInputStream |
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179 |
{ |
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180 |
private SocketInputStream() { |
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181 |
super(sc); |
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182 |
} |
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183 |
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184 |
protected int read(ByteBuffer bb) |
|
185 |
throws IOException |
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186 |
{ |
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187 |
synchronized (sc.blockingLock()) { |
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188 |
if (!sc.isBlocking()) |
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189 |
throw new IllegalBlockingModeException(); |
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190 |
if (timeout == 0) |
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191 |
return sc.read(bb); |
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sc.configureBlocking(false); |
2 | 193 |
|
194 |
try { |
|
195 |
int n; |
|
196 |
if ((n = sc.read(bb)) != 0) |
|
197 |
return n; |
|
198 |
long to = timeout; |
|
199 |
for (;;) { |
|
200 |
if (!sc.isOpen()) |
|
201 |
throw new ClosedChannelException(); |
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202 |
long st = System.currentTimeMillis(); |
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int result = sc.poll(PollArrayWrapper.POLLIN, to); |
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204 |
if (result > 0) { |
2 | 205 |
if ((n = sc.read(bb)) != 0) |
206 |
return n; |
|
207 |
} |
|
208 |
to -= System.currentTimeMillis() - st; |
|
209 |
if (to <= 0) |
|
210 |
throw new SocketTimeoutException(); |
|
211 |
} |
|
212 |
} finally { |
|
213 |
if (sc.isOpen()) |
|
214 |
sc.configureBlocking(true); |
|
215 |
} |
|
216 |
||
217 |
} |
|
218 |
} |
|
219 |
} |
|
220 |
||
221 |
private InputStream socketInputStream = null; |
|
222 |
||
223 |
public InputStream getInputStream() throws IOException { |
|
224 |
if (!sc.isOpen()) |
|
225 |
throw new SocketException("Socket is closed"); |
|
226 |
if (!sc.isConnected()) |
|
227 |
throw new SocketException("Socket is not connected"); |
|
228 |
if (!sc.isInputOpen()) |
|
229 |
throw new SocketException("Socket input is shutdown"); |
|
230 |
if (socketInputStream == null) { |
|
231 |
try { |
|
51 | 232 |
socketInputStream = AccessController.doPrivileged( |
233 |
new PrivilegedExceptionAction<InputStream>() { |
|
234 |
public InputStream run() throws IOException { |
|
2 | 235 |
return new SocketInputStream(); |
236 |
} |
|
237 |
}); |
|
238 |
} catch (java.security.PrivilegedActionException e) { |
|
239 |
throw (IOException)e.getException(); |
|
240 |
} |
|
241 |
} |
|
242 |
return socketInputStream; |
|
243 |
} |
|
244 |
||
245 |
public OutputStream getOutputStream() throws IOException { |
|
246 |
if (!sc.isOpen()) |
|
247 |
throw new SocketException("Socket is closed"); |
|
248 |
if (!sc.isConnected()) |
|
249 |
throw new SocketException("Socket is not connected"); |
|
250 |
if (!sc.isOutputOpen()) |
|
251 |
throw new SocketException("Socket output is shutdown"); |
|
252 |
OutputStream os = null; |
|
253 |
try { |
|
51 | 254 |
os = AccessController.doPrivileged( |
255 |
new PrivilegedExceptionAction<OutputStream>() { |
|
256 |
public OutputStream run() throws IOException { |
|
2 | 257 |
return Channels.newOutputStream(sc); |
258 |
} |
|
259 |
}); |
|
260 |
} catch (java.security.PrivilegedActionException e) { |
|
261 |
throw (IOException)e.getException(); |
|
262 |
} |
|
263 |
return os; |
|
264 |
} |
|
265 |
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private void setBooleanOption(SocketOption<Boolean> name, boolean value) |
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267 |
throws SocketException |
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268 |
{ |
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269 |
try { |
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270 |
sc.setOption(name, value); |
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271 |
} catch (IOException x) { |
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272 |
Net.translateToSocketException(x); |
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273 |
} |
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274 |
} |
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275 |
|
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276 |
private void setIntOption(SocketOption<Integer> name, int value) |
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277 |
throws SocketException |
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278 |
{ |
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279 |
try { |
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|
280 |
sc.setOption(name, value); |
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281 |
} catch (IOException x) { |
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282 |
Net.translateToSocketException(x); |
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|
283 |
} |
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284 |
} |
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|
285 |
|
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286 |
private boolean getBooleanOption(SocketOption<Boolean> name) throws SocketException { |
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|
287 |
try { |
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|
288 |
return sc.getOption(name).booleanValue(); |
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289 |
} catch (IOException x) { |
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290 |
Net.translateToSocketException(x); |
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|
291 |
return false; // keep compiler happy |
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|
292 |
} |
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293 |
} |
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294 |
|
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295 |
private int getIntOption(SocketOption<Integer> name) throws SocketException { |
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296 |
try { |
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297 |
return sc.getOption(name).intValue(); |
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298 |
} catch (IOException x) { |
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299 |
Net.translateToSocketException(x); |
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300 |
return -1; // keep compiler happy |
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301 |
} |
2 | 302 |
} |
303 |
||
304 |
public void setTcpNoDelay(boolean on) throws SocketException { |
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305 |
setBooleanOption(StandardSocketOptions.TCP_NODELAY, on); |
2 | 306 |
} |
307 |
||
308 |
public boolean getTcpNoDelay() throws SocketException { |
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309 |
return getBooleanOption(StandardSocketOptions.TCP_NODELAY); |
2 | 310 |
} |
311 |
||
312 |
public void setSoLinger(boolean on, int linger) throws SocketException { |
|
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313 |
if (!on) |
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linger = -1; |
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315 |
setIntOption(StandardSocketOptions.SO_LINGER, linger); |
2 | 316 |
} |
317 |
||
318 |
public int getSoLinger() throws SocketException { |
|
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319 |
return getIntOption(StandardSocketOptions.SO_LINGER); |
2 | 320 |
} |
321 |
||
322 |
public void sendUrgentData(int data) throws IOException { |
|
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synchronized (sc.blockingLock()) { |
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|
324 |
if (!sc.isBlocking()) |
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|
325 |
throw new IllegalBlockingModeException(); |
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|
326 |
int n = sc.sendOutOfBandData((byte)data); |
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327 |
assert n == 1; |
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|
328 |
} |
2 | 329 |
} |
330 |
||
331 |
public void setOOBInline(boolean on) throws SocketException { |
|
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332 |
setBooleanOption(ExtendedSocketOption.SO_OOBINLINE, on); |
2 | 333 |
} |
334 |
||
335 |
public boolean getOOBInline() throws SocketException { |
|
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336 |
return getBooleanOption(ExtendedSocketOption.SO_OOBINLINE); |
2 | 337 |
} |
338 |
||
339 |
public void setSoTimeout(int timeout) throws SocketException { |
|
340 |
if (timeout < 0) |
|
341 |
throw new IllegalArgumentException("timeout can't be negative"); |
|
342 |
this.timeout = timeout; |
|
343 |
} |
|
344 |
||
345 |
public int getSoTimeout() throws SocketException { |
|
346 |
return timeout; |
|
347 |
} |
|
348 |
||
349 |
public void setSendBufferSize(int size) throws SocketException { |
|
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350 |
// size 0 valid for SocketChannel, invalid for Socket |
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|
351 |
if (size <= 0) |
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|
352 |
throw new IllegalArgumentException("Invalid send size"); |
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|
353 |
setIntOption(StandardSocketOptions.SO_SNDBUF, size); |
2 | 354 |
} |
355 |
||
356 |
public int getSendBufferSize() throws SocketException { |
|
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|
357 |
return getIntOption(StandardSocketOptions.SO_SNDBUF); |
2 | 358 |
} |
359 |
||
360 |
public void setReceiveBufferSize(int size) throws SocketException { |
|
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|
361 |
// size 0 valid for SocketChannel, invalid for Socket |
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|
362 |
if (size <= 0) |
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|
363 |
throw new IllegalArgumentException("Invalid receive size"); |
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|
364 |
setIntOption(StandardSocketOptions.SO_RCVBUF, size); |
2 | 365 |
} |
366 |
||
367 |
public int getReceiveBufferSize() throws SocketException { |
|
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|
368 |
return getIntOption(StandardSocketOptions.SO_RCVBUF); |
2 | 369 |
} |
370 |
||
371 |
public void setKeepAlive(boolean on) throws SocketException { |
|
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|
372 |
setBooleanOption(StandardSocketOptions.SO_KEEPALIVE, on); |
2 | 373 |
} |
374 |
||
375 |
public boolean getKeepAlive() throws SocketException { |
|
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|
376 |
return getBooleanOption(StandardSocketOptions.SO_KEEPALIVE); |
2 | 377 |
} |
378 |
||
379 |
public void setTrafficClass(int tc) throws SocketException { |
|
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|
380 |
setIntOption(StandardSocketOptions.IP_TOS, tc); |
2 | 381 |
} |
382 |
||
383 |
public int getTrafficClass() throws SocketException { |
|
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|
384 |
return getIntOption(StandardSocketOptions.IP_TOS); |
2 | 385 |
} |
386 |
||
387 |
public void setReuseAddress(boolean on) throws SocketException { |
|
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|
388 |
setBooleanOption(StandardSocketOptions.SO_REUSEADDR, on); |
2 | 389 |
} |
390 |
||
391 |
public boolean getReuseAddress() throws SocketException { |
|
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|
392 |
return getBooleanOption(StandardSocketOptions.SO_REUSEADDR); |
2 | 393 |
} |
394 |
||
395 |
public void close() throws IOException { |
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|
396 |
sc.close(); |
2 | 397 |
} |
398 |
||
399 |
public void shutdownInput() throws IOException { |
|
400 |
try { |
|
401 |
sc.shutdownInput(); |
|
402 |
} catch (Exception x) { |
|
403 |
Net.translateException(x); |
|
404 |
} |
|
405 |
} |
|
406 |
||
407 |
public void shutdownOutput() throws IOException { |
|
408 |
try { |
|
409 |
sc.shutdownOutput(); |
|
410 |
} catch (Exception x) { |
|
411 |
Net.translateException(x); |
|
412 |
} |
|
413 |
} |
|
414 |
||
415 |
public String toString() { |
|
416 |
if (sc.isConnected()) |
|
417 |
return "Socket[addr=" + getInetAddress() + |
|
418 |
",port=" + getPort() + |
|
419 |
",localport=" + getLocalPort() + "]"; |
|
420 |
return "Socket[unconnected]"; |
|
421 |
} |
|
422 |
||
423 |
public boolean isConnected() { |
|
424 |
return sc.isConnected(); |
|
425 |
} |
|
426 |
||
427 |
public boolean isBound() { |
|
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|
428 |
return sc.localAddress() != null; |
2 | 429 |
} |
430 |
||
431 |
public boolean isClosed() { |
|
432 |
return !sc.isOpen(); |
|
433 |
} |
|
434 |
||
435 |
public boolean isInputShutdown() { |
|
436 |
return !sc.isInputOpen(); |
|
437 |
} |
|
438 |
||
439 |
public boolean isOutputShutdown() { |
|
440 |
return !sc.isOutputOpen(); |
|
441 |
} |
|
442 |
||
443 |
} |