author | rriggs |
Fri, 02 Feb 2018 14:17:07 -0500 | |
changeset 48737 | 7c12219870fd |
parent 47216 | 71c04702a3d5 |
child 55081 | dd321e3596c0 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright (c) 1996, 2018, Oracle and/or its affiliates. All rights reserved. |
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* 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 |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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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 java.net; |
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import java.io.FileDescriptor; |
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import java.io.IOException; |
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import java.util.Collections; |
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import java.util.HashSet; |
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import java.util.Set; |
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import sun.net.ResourceManager; |
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import sun.security.action.GetPropertyAction; |
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/** |
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* Abstract datagram and multicast socket implementation base class. |
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* Note: This is not a public class, so that applets cannot call |
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* into the implementation directly and hence cannot bypass the |
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* security checks present in the DatagramSocket and MulticastSocket |
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* classes. |
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* |
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* @author Pavani Diwanji |
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*/ |
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abstract class AbstractPlainDatagramSocketImpl extends DatagramSocketImpl |
|
47 |
{ |
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/* timeout value for receive() */ |
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int timeout = 0; |
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boolean connected = false; |
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private int trafficClass = 0; |
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protected InetAddress connectedAddress = null; |
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private int connectedPort = -1; |
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private static final String os = |
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GetPropertyAction.privilegedGetProperty("os.name"); |
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/** |
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* flag set if the native connect() call not to be used |
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*/ |
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private static final boolean connectDisabled = os.contains("OS X"); |
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/** |
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* Load net library into runtime. |
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*/ |
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static { |
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java.security.AccessController.doPrivileged( |
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new java.security.PrivilegedAction<>() { |
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public Void run() { |
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System.loadLibrary("net"); |
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return null; |
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} |
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}); |
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} |
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private static volatile boolean checkedReusePort; |
77 |
private static volatile boolean isReusePortAvailable; |
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78 |
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79 |
/** |
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80 |
* Tells whether SO_REUSEPORT is supported. |
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81 |
*/ |
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82 |
static boolean isReusePortAvailable() { |
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83 |
if (!checkedReusePort) { |
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84 |
isReusePortAvailable = isReusePortAvailable0(); |
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checkedReusePort = true; |
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86 |
} |
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return isReusePortAvailable; |
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} |
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/** |
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* Returns a set of SocketOptions supported by this impl and by this impl's |
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* socket (Socket or ServerSocket) |
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* |
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* @return a Set of SocketOptions |
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*/ |
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96 |
@Override |
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protected Set<SocketOption<?>> supportedOptions() { |
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Set<SocketOption<?>> options; |
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if (isReusePortAvailable()) { |
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options = new HashSet<>(); |
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options.addAll(super.supportedOptions()); |
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options.add(StandardSocketOptions.SO_REUSEPORT); |
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options = Collections.unmodifiableSet(options); |
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} else { |
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options = super.supportedOptions(); |
36115 | 106 |
} |
107 |
return options; |
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108 |
} |
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109 |
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2 | 110 |
/** |
111 |
* Creates a datagram socket |
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112 |
*/ |
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113 |
protected synchronized void create() throws SocketException { |
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ResourceManager.beforeUdpCreate(); |
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fd = new FileDescriptor(); |
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try { |
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datagramSocketCreate(); |
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SocketCleanable.register(fd); |
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} catch (SocketException ioe) { |
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ResourceManager.afterUdpClose(); |
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fd = null; |
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throw ioe; |
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} |
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} |
125 |
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126 |
/** |
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127 |
* Binds a datagram socket to a local port. |
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128 |
*/ |
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129 |
protected synchronized void bind(int lport, InetAddress laddr) |
|
130 |
throws SocketException { |
|
131 |
bind0(lport, laddr); |
|
132 |
} |
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133 |
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134 |
protected abstract void bind0(int lport, InetAddress laddr) |
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135 |
throws SocketException; |
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136 |
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137 |
/** |
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138 |
* Sends a datagram packet. The packet contains the data and the |
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139 |
* destination address to send the packet to. |
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* @param p the packet to be sent. |
2 | 141 |
*/ |
142 |
protected abstract void send(DatagramPacket p) throws IOException; |
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143 |
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144 |
/** |
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145 |
* Connects a datagram socket to a remote destination. This associates the remote |
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146 |
* address with the local socket so that datagrams may only be sent to this destination |
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147 |
* and received from this destination. |
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148 |
* @param address the remote InetAddress to connect to |
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149 |
* @param port the remote port number |
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150 |
*/ |
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151 |
protected void connect(InetAddress address, int port) throws SocketException { |
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152 |
connect0(address, port); |
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153 |
connectedAddress = address; |
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154 |
connectedPort = port; |
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155 |
connected = true; |
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156 |
} |
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157 |
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158 |
/** |
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159 |
* Disconnects a previously connected socket. Does nothing if the socket was |
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160 |
* not connected already. |
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161 |
*/ |
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162 |
protected void disconnect() { |
|
16870 | 163 |
disconnect0(connectedAddress.holder().getFamily()); |
2 | 164 |
connected = false; |
165 |
connectedAddress = null; |
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166 |
connectedPort = -1; |
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167 |
} |
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168 |
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169 |
/** |
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170 |
* Peek at the packet to see who it is from. |
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* @param i the address to populate with the sender address |
2 | 172 |
*/ |
173 |
protected abstract int peek(InetAddress i) throws IOException; |
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174 |
protected abstract int peekData(DatagramPacket p) throws IOException; |
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175 |
/** |
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176 |
* Receive the datagram packet. |
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14014 | 177 |
* @param p the packet to receive into |
2 | 178 |
*/ |
179 |
protected synchronized void receive(DatagramPacket p) |
|
180 |
throws IOException { |
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181 |
receive0(p); |
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182 |
} |
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183 |
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184 |
protected abstract void receive0(DatagramPacket p) |
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185 |
throws IOException; |
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186 |
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187 |
/** |
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188 |
* Set the TTL (time-to-live) option. |
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14014 | 189 |
* @param ttl TTL to be set. |
2 | 190 |
*/ |
191 |
protected abstract void setTimeToLive(int ttl) throws IOException; |
|
192 |
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193 |
/** |
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194 |
* Get the TTL (time-to-live) option. |
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195 |
*/ |
|
196 |
protected abstract int getTimeToLive() throws IOException; |
|
197 |
||
198 |
/** |
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199 |
* Set the TTL (time-to-live) option. |
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14014 | 200 |
* @param ttl TTL to be set. |
2 | 201 |
*/ |
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202 |
@Deprecated |
2 | 203 |
protected abstract void setTTL(byte ttl) throws IOException; |
204 |
||
205 |
/** |
|
206 |
* Get the TTL (time-to-live) option. |
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207 |
*/ |
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208 |
@Deprecated |
2 | 209 |
protected abstract byte getTTL() throws IOException; |
210 |
||
211 |
/** |
|
212 |
* Join the multicast group. |
|
14014 | 213 |
* @param inetaddr multicast address to join. |
2 | 214 |
*/ |
215 |
protected void join(InetAddress inetaddr) throws IOException { |
|
216 |
join(inetaddr, null); |
|
217 |
} |
|
218 |
||
219 |
/** |
|
220 |
* Leave the multicast group. |
|
14014 | 221 |
* @param inetaddr multicast address to leave. |
2 | 222 |
*/ |
223 |
protected void leave(InetAddress inetaddr) throws IOException { |
|
224 |
leave(inetaddr, null); |
|
225 |
} |
|
226 |
/** |
|
227 |
* Join the multicast group. |
|
14014 | 228 |
* @param mcastaddr multicast address to join. |
2 | 229 |
* @param netIf specifies the local interface to receive multicast |
230 |
* datagram packets |
|
231 |
* @throws IllegalArgumentException if mcastaddr is null or is a |
|
232 |
* SocketAddress subclass not supported by this socket |
|
233 |
* @since 1.4 |
|
234 |
*/ |
|
235 |
||
236 |
protected void joinGroup(SocketAddress mcastaddr, NetworkInterface netIf) |
|
237 |
throws IOException { |
|
238 |
if (mcastaddr == null || !(mcastaddr instanceof InetSocketAddress)) |
|
239 |
throw new IllegalArgumentException("Unsupported address type"); |
|
240 |
join(((InetSocketAddress)mcastaddr).getAddress(), netIf); |
|
241 |
} |
|
242 |
||
243 |
protected abstract void join(InetAddress inetaddr, NetworkInterface netIf) |
|
244 |
throws IOException; |
|
245 |
||
246 |
/** |
|
247 |
* Leave the multicast group. |
|
14014 | 248 |
* @param mcastaddr multicast address to leave. |
2 | 249 |
* @param netIf specified the local interface to leave the group at |
250 |
* @throws IllegalArgumentException if mcastaddr is null or is a |
|
251 |
* SocketAddress subclass not supported by this socket |
|
252 |
* @since 1.4 |
|
253 |
*/ |
|
254 |
protected void leaveGroup(SocketAddress mcastaddr, NetworkInterface netIf) |
|
255 |
throws IOException { |
|
256 |
if (mcastaddr == null || !(mcastaddr instanceof InetSocketAddress)) |
|
257 |
throw new IllegalArgumentException("Unsupported address type"); |
|
258 |
leave(((InetSocketAddress)mcastaddr).getAddress(), netIf); |
|
259 |
} |
|
260 |
||
261 |
protected abstract void leave(InetAddress inetaddr, NetworkInterface netIf) |
|
262 |
throws IOException; |
|
263 |
||
264 |
/** |
|
265 |
* Close the socket. |
|
266 |
*/ |
|
267 |
protected void close() { |
|
268 |
if (fd != null) { |
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SocketCleanable.unregister(fd); |
2 | 270 |
datagramSocketClose(); |
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271 |
ResourceManager.afterUdpClose(); |
2 | 272 |
fd = null; |
273 |
} |
|
274 |
} |
|
275 |
||
276 |
protected boolean isClosed() { |
|
277 |
return (fd == null) ? true : false; |
|
278 |
} |
|
279 |
||
280 |
/** |
|
281 |
* set a value - since we only support (setting) binary options |
|
282 |
* here, o must be a Boolean |
|
283 |
*/ |
|
284 |
||
285 |
public void setOption(int optID, Object o) throws SocketException { |
|
286 |
if (isClosed()) { |
|
287 |
throw new SocketException("Socket Closed"); |
|
288 |
} |
|
289 |
switch (optID) { |
|
290 |
/* check type safety b4 going native. These should never |
|
291 |
* fail, since only java.Socket* has access to |
|
292 |
* PlainSocketImpl.setOption(). |
|
293 |
*/ |
|
294 |
case SO_TIMEOUT: |
|
295 |
if (o == null || !(o instanceof Integer)) { |
|
296 |
throw new SocketException("bad argument for SO_TIMEOUT"); |
|
297 |
} |
|
298 |
int tmp = ((Integer) o).intValue(); |
|
299 |
if (tmp < 0) |
|
300 |
throw new IllegalArgumentException("timeout < 0"); |
|
301 |
timeout = tmp; |
|
302 |
return; |
|
303 |
case IP_TOS: |
|
304 |
if (o == null || !(o instanceof Integer)) { |
|
305 |
throw new SocketException("bad argument for IP_TOS"); |
|
306 |
} |
|
307 |
trafficClass = ((Integer)o).intValue(); |
|
308 |
break; |
|
309 |
case SO_REUSEADDR: |
|
310 |
if (o == null || !(o instanceof Boolean)) { |
|
311 |
throw new SocketException("bad argument for SO_REUSEADDR"); |
|
312 |
} |
|
313 |
break; |
|
314 |
case SO_BROADCAST: |
|
315 |
if (o == null || !(o instanceof Boolean)) { |
|
316 |
throw new SocketException("bad argument for SO_BROADCAST"); |
|
317 |
} |
|
318 |
break; |
|
319 |
case SO_BINDADDR: |
|
320 |
throw new SocketException("Cannot re-bind Socket"); |
|
321 |
case SO_RCVBUF: |
|
322 |
case SO_SNDBUF: |
|
323 |
if (o == null || !(o instanceof Integer) || |
|
324 |
((Integer)o).intValue() < 0) { |
|
325 |
throw new SocketException("bad argument for SO_SNDBUF or " + |
|
326 |
"SO_RCVBUF"); |
|
327 |
} |
|
328 |
break; |
|
329 |
case IP_MULTICAST_IF: |
|
330 |
if (o == null || !(o instanceof InetAddress)) |
|
331 |
throw new SocketException("bad argument for IP_MULTICAST_IF"); |
|
332 |
break; |
|
333 |
case IP_MULTICAST_IF2: |
|
334 |
if (o == null || !(o instanceof NetworkInterface)) |
|
335 |
throw new SocketException("bad argument for IP_MULTICAST_IF2"); |
|
336 |
break; |
|
337 |
case IP_MULTICAST_LOOP: |
|
338 |
if (o == null || !(o instanceof Boolean)) |
|
339 |
throw new SocketException("bad argument for IP_MULTICAST_LOOP"); |
|
340 |
break; |
|
36115 | 341 |
case SO_REUSEPORT: |
342 |
if (o == null || !(o instanceof Boolean)) { |
|
343 |
throw new SocketException("bad argument for SO_REUSEPORT"); |
|
344 |
} |
|
345 |
if (!supportedOptions().contains(StandardSocketOptions.SO_REUSEPORT)) { |
|
346 |
throw new UnsupportedOperationException("unsupported option"); |
|
347 |
} |
|
348 |
break; |
|
2 | 349 |
default: |
350 |
throw new SocketException("invalid option: " + optID); |
|
351 |
} |
|
352 |
socketSetOption(optID, o); |
|
353 |
} |
|
354 |
||
355 |
/* |
|
356 |
* get option's state - set or not |
|
357 |
*/ |
|
358 |
||
359 |
public Object getOption(int optID) throws SocketException { |
|
360 |
if (isClosed()) { |
|
361 |
throw new SocketException("Socket Closed"); |
|
362 |
} |
|
363 |
||
364 |
Object result; |
|
365 |
||
366 |
switch (optID) { |
|
367 |
case SO_TIMEOUT: |
|
25522
10d789df41bb
8049892: Replace uses of 'new Integer()' with appropriate alternative across core classes
prr
parents:
23010
diff
changeset
|
368 |
result = timeout; |
2 | 369 |
break; |
370 |
||
371 |
case IP_TOS: |
|
372 |
result = socketGetOption(optID); |
|
373 |
if ( ((Integer)result).intValue() == -1) { |
|
25522
10d789df41bb
8049892: Replace uses of 'new Integer()' with appropriate alternative across core classes
prr
parents:
23010
diff
changeset
|
374 |
result = trafficClass; |
2 | 375 |
} |
376 |
break; |
|
377 |
||
378 |
case SO_BINDADDR: |
|
379 |
case IP_MULTICAST_IF: |
|
380 |
case IP_MULTICAST_IF2: |
|
381 |
case SO_RCVBUF: |
|
382 |
case SO_SNDBUF: |
|
383 |
case IP_MULTICAST_LOOP: |
|
384 |
case SO_REUSEADDR: |
|
385 |
case SO_BROADCAST: |
|
386 |
result = socketGetOption(optID); |
|
387 |
break; |
|
388 |
||
36115 | 389 |
case SO_REUSEPORT: |
390 |
if (!supportedOptions().contains(StandardSocketOptions.SO_REUSEPORT)) { |
|
391 |
throw new UnsupportedOperationException("unsupported option"); |
|
392 |
} |
|
393 |
result = socketGetOption(optID); |
|
394 |
break; |
|
395 |
||
2 | 396 |
default: |
397 |
throw new SocketException("invalid option: " + optID); |
|
398 |
} |
|
399 |
||
400 |
return result; |
|
401 |
} |
|
402 |
||
403 |
protected abstract void datagramSocketCreate() throws SocketException; |
|
404 |
protected abstract void datagramSocketClose(); |
|
405 |
protected abstract void socketSetOption(int opt, Object val) |
|
406 |
throws SocketException; |
|
407 |
protected abstract Object socketGetOption(int opt) throws SocketException; |
|
408 |
||
409 |
protected abstract void connect0(InetAddress address, int port) throws SocketException; |
|
410 |
protected abstract void disconnect0(int family); |
|
411 |
||
12047
320a714614e9
7113349: Initial changeset for Macosx port to jdk
michaelm
parents:
10693
diff
changeset
|
412 |
protected boolean nativeConnectDisabled() { |
320a714614e9
7113349: Initial changeset for Macosx port to jdk
michaelm
parents:
10693
diff
changeset
|
413 |
return connectDisabled; |
320a714614e9
7113349: Initial changeset for Macosx port to jdk
michaelm
parents:
10693
diff
changeset
|
414 |
} |
27078 | 415 |
|
32503
1478c9130534
8072466: Deadlock when initializing MulticastSocket and DatagramSocket
igerasim
parents:
29986
diff
changeset
|
416 |
abstract int dataAvailable(); |
36115 | 417 |
private static native boolean isReusePortAvailable0(); |
2 | 418 |
} |