author | chegar |
Mon, 11 Jan 2010 16:04:05 +0000 | |
changeset 4669 | 11d1dbd3598d |
parent 3320 | a7c037dd2e14 |
child 4677 | 1b6ce3fbc01b |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2009 Sun Microsystems, Inc. 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. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package sun.nio.ch; |
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import java.net.InetAddress; |
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import java.net.SocketAddress; |
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import java.net.SocketException; |
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import java.net.InetSocketAddress; |
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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.Set; |
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import java.util.HashSet; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.SelectionKey; |
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import java.nio.channels.ClosedChannelException; |
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import java.nio.channels.ConnectionPendingException; |
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import java.nio.channels.NoConnectionPendingException; |
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import java.nio.channels.AlreadyConnectedException; |
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import java.nio.channels.NotYetBoundException; |
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import java.nio.channels.NotYetConnectedException; |
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import java.nio.channels.spi.SelectorProvider; |
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import com.sun.nio.sctp.AbstractNotificationHandler; |
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import com.sun.nio.sctp.Association; |
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import com.sun.nio.sctp.AssociationChangeNotification; |
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import com.sun.nio.sctp.HandlerResult; |
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import com.sun.nio.sctp.IllegalReceiveException; |
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import com.sun.nio.sctp.InvalidStreamException; |
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import com.sun.nio.sctp.IllegalUnbindException; |
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import com.sun.nio.sctp.MessageInfo; |
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import com.sun.nio.sctp.NotificationHandler; |
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import com.sun.nio.sctp.SctpChannel; |
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import com.sun.nio.sctp.SctpSocketOption; |
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import sun.nio.ch.PollArrayWrapper; |
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import sun.nio.ch.SelChImpl; |
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import static com.sun.nio.sctp.SctpStandardSocketOption.*; |
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import static sun.nio.ch.SctpResultContainer.SEND_FAILED; |
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import static sun.nio.ch.SctpResultContainer.ASSOCIATION_CHANGED; |
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import static sun.nio.ch.SctpResultContainer.PEER_ADDRESS_CHANGED; |
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import static sun.nio.ch.SctpResultContainer.SHUTDOWN; |
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/** |
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* An implementation of an SctpChannel |
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*/ |
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public class SctpChannelImpl extends SctpChannel |
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implements SelChImpl |
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{ |
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private final FileDescriptor fd; |
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private final int fdVal; |
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/* IDs of native threads doing send and receivess, for signalling */ |
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private volatile long receiverThread = 0; |
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private volatile long senderThread = 0; |
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/* Lock held by current receiving or connecting thread */ |
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private final Object receiveLock = new Object(); |
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/* Lock held by current sending or connecting thread */ |
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private final Object sendLock = new Object(); |
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private final ThreadLocal<Boolean> receiveInvoked = |
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new ThreadLocal<Boolean>() { |
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@Override protected Boolean initialValue() { |
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return Boolean.FALSE; |
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} |
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}; |
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/* Lock held by any thread that modifies the state fields declared below |
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DO NOT invoke a blocking I/O operation while holding this lock! */ |
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private final Object stateLock = new Object(); |
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private enum ChannelState { |
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UNINITIALIZED, |
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UNCONNECTED, |
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PENDING, |
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CONNECTED, |
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KILLPENDING, |
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KILLED, |
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} |
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/* -- The following fields are protected by stateLock -- */ |
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private ChannelState state = ChannelState.UNINITIALIZED; |
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/* Binding; Once bound the port will remain constant. */ |
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int port = -1; |
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private HashSet<InetSocketAddress> localAddresses = new HashSet<InetSocketAddress>(); |
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/* Has the channel been bound to the wildcard address */ |
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private boolean wildcard; /* false */ |
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//private InetSocketAddress remoteAddress = null; |
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/* Input/Output open */ |
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private boolean readyToConnect; |
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/* Shutdown */ |
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private boolean isShutdown; |
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private Association association; |
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private Set<SocketAddress> remoteAddresses = Collections.EMPTY_SET; |
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/* -- End of fields protected by stateLock -- */ |
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/** |
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* Constructor for normal connecting sockets |
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*/ |
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public SctpChannelImpl(SelectorProvider provider) throws IOException { |
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//TODO: update provider remove public modifier |
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super(provider); |
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this.fd = SctpNet.socket(true); |
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this.fdVal = IOUtil.fdVal(fd); |
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this.state = ChannelState.UNCONNECTED; |
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} |
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/** |
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* Constructor for sockets obtained from server sockets |
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*/ |
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public SctpChannelImpl(SelectorProvider provider, FileDescriptor fd) |
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throws IOException { |
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this(provider, fd, null); |
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} |
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/** |
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* Constructor for sockets obtained from branching |
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*/ |
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public SctpChannelImpl(SelectorProvider provider, |
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FileDescriptor fd, |
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Association association) |
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throws IOException { |
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super(provider); |
152 |
this.fd = fd; |
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this.fdVal = IOUtil.fdVal(fd); |
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this.state = ChannelState.CONNECTED; |
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port = (Net.localAddress(fd)).getPort(); |
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if (association != null) { /* branched */ |
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this.association = association; |
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} else { /* obtained from server channel */ |
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/* Receive COMM_UP */ |
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ByteBuffer buf = Util.getTemporaryDirectBuffer(50); |
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try { |
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receive(buf, null, null, true); |
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} finally { |
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Util.releaseTemporaryDirectBuffer(buf); |
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} |
2542 | 167 |
} |
168 |
} |
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170 |
/** |
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171 |
* Binds the channel's socket to a local address. |
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*/ |
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@Override |
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public SctpChannel bind(SocketAddress local) throws IOException { |
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synchronized (receiveLock) { |
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synchronized (sendLock) { |
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synchronized (stateLock) { |
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ensureOpenAndUnconnected(); |
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if (isBound()) |
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SctpNet.throwAlreadyBoundException(); |
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InetSocketAddress isa = (local == null) ? |
182 |
new InetSocketAddress(0) : Net.checkAddress(local); |
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Net.bind(fd, isa.getAddress(), isa.getPort()); |
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InetSocketAddress boundIsa = Net.localAddress(fd); |
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port = boundIsa.getPort(); |
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localAddresses.add(isa); |
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if (isa.getAddress().isAnyLocalAddress()) |
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wildcard = true; |
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} |
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} |
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} |
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return this; |
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} |
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195 |
@Override |
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196 |
public SctpChannel bindAddress(InetAddress address) |
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197 |
throws IOException { |
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198 |
bindUnbindAddress(address, true); |
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199 |
localAddresses.add(new InetSocketAddress(address, port)); |
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return this; |
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} |
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202 |
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203 |
@Override |
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204 |
public SctpChannel unbindAddress(InetAddress address) |
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205 |
throws IOException { |
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206 |
bindUnbindAddress(address, false); |
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localAddresses.remove(new InetSocketAddress(address, port)); |
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return this; |
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} |
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210 |
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211 |
private SctpChannel bindUnbindAddress(InetAddress address, boolean add) |
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212 |
throws IOException { |
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213 |
if (address == null) |
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throw new IllegalArgumentException(); |
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215 |
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216 |
synchronized (receiveLock) { |
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217 |
synchronized (sendLock) { |
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218 |
synchronized (stateLock) { |
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219 |
if (!isOpen()) |
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220 |
throw new ClosedChannelException(); |
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221 |
if (!isBound()) |
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222 |
throw new NotYetBoundException(); |
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223 |
if (wildcard) |
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throw new IllegalStateException( |
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225 |
"Cannot add or remove addresses from a channel that is bound to the wildcard address"); |
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226 |
if (address.isAnyLocalAddress()) |
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throw new IllegalArgumentException( |
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228 |
"Cannot add or remove the wildcard address"); |
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229 |
if (add) { |
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230 |
for (InetSocketAddress addr : localAddresses) { |
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231 |
if (addr.getAddress().equals(address)) { |
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SctpNet.throwAlreadyBoundException(); |
2542 | 233 |
} |
234 |
} |
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235 |
} else { /*removing */ |
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236 |
/* Verify that there is more than one address |
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237 |
* and that address is already bound */ |
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238 |
if (localAddresses.size() <= 1) |
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239 |
throw new IllegalUnbindException("Cannot remove address from a channel with only one address bound"); |
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240 |
boolean foundAddress = false; |
|
241 |
for (InetSocketAddress addr : localAddresses) { |
|
242 |
if (addr.getAddress().equals(address)) { |
|
243 |
foundAddress = true; |
|
244 |
break; |
|
245 |
} |
|
246 |
} |
|
247 |
if (!foundAddress ) |
|
248 |
throw new IllegalUnbindException("Cannot remove address from a channel that is not bound to that address"); |
|
249 |
} |
|
250 |
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251 |
SctpNet.bindx(fdVal, new InetAddress[]{address}, port, add); |
|
252 |
||
253 |
/* Update our internal Set to reflect the addition/removal */ |
|
254 |
if (add) |
|
255 |
localAddresses.add(new InetSocketAddress(address, port)); |
|
256 |
else { |
|
257 |
for (InetSocketAddress addr : localAddresses) { |
|
258 |
if (addr.getAddress().equals(address)) { |
|
259 |
localAddresses.remove(addr); |
|
260 |
break; |
|
261 |
} |
|
262 |
} |
|
263 |
} |
|
264 |
} |
|
265 |
} |
|
266 |
} |
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267 |
return this; |
|
268 |
} |
|
269 |
||
270 |
private boolean isBound() { |
|
271 |
synchronized (stateLock) { |
|
272 |
return port == -1 ? false : true; |
|
273 |
} |
|
274 |
} |
|
275 |
||
276 |
private boolean isConnected() { |
|
277 |
synchronized (stateLock) { |
|
278 |
return (state == ChannelState.CONNECTED); |
|
279 |
} |
|
280 |
} |
|
281 |
||
282 |
private void ensureOpenAndUnconnected() throws IOException { |
|
283 |
synchronized (stateLock) { |
|
284 |
if (!isOpen()) |
|
285 |
throw new ClosedChannelException(); |
|
286 |
if (isConnected()) |
|
287 |
throw new AlreadyConnectedException(); |
|
288 |
if (state == ChannelState.PENDING) |
|
289 |
throw new ConnectionPendingException(); |
|
290 |
} |
|
291 |
} |
|
292 |
||
293 |
private boolean ensureReceiveOpen() throws ClosedChannelException { |
|
294 |
synchronized (stateLock) { |
|
295 |
if (!isOpen()) |
|
296 |
throw new ClosedChannelException(); |
|
297 |
if (!isConnected()) |
|
298 |
throw new NotYetConnectedException(); |
|
299 |
else |
|
300 |
return true; |
|
301 |
} |
|
302 |
} |
|
303 |
||
304 |
private void ensureSendOpen() throws ClosedChannelException { |
|
305 |
synchronized (stateLock) { |
|
306 |
if (!isOpen()) |
|
307 |
throw new ClosedChannelException(); |
|
308 |
if (isShutdown) |
|
309 |
throw new ClosedChannelException(); |
|
310 |
if (!isConnected()) |
|
311 |
throw new NotYetConnectedException(); |
|
312 |
} |
|
313 |
} |
|
314 |
||
315 |
private void receiverCleanup() throws IOException { |
|
316 |
synchronized (stateLock) { |
|
317 |
receiverThread = 0; |
|
318 |
if (state == ChannelState.KILLPENDING) |
|
319 |
kill(); |
|
320 |
} |
|
321 |
} |
|
322 |
||
323 |
private void senderCleanup() throws IOException { |
|
324 |
synchronized (stateLock) { |
|
325 |
senderThread = 0; |
|
326 |
if (state == ChannelState.KILLPENDING) |
|
327 |
kill(); |
|
328 |
} |
|
329 |
} |
|
330 |
||
331 |
@Override |
|
332 |
public Association association() throws ClosedChannelException { |
|
333 |
synchronized (stateLock) { |
|
334 |
if (!isOpen()) |
|
335 |
throw new ClosedChannelException(); |
|
336 |
if (!isConnected()) |
|
337 |
return null; |
|
338 |
||
339 |
return association; |
|
340 |
} |
|
341 |
} |
|
342 |
||
343 |
@Override |
|
344 |
public boolean connect(SocketAddress endpoint) throws IOException { |
|
345 |
synchronized (receiveLock) { |
|
346 |
synchronized (sendLock) { |
|
347 |
ensureOpenAndUnconnected(); |
|
348 |
InetSocketAddress isa = Net.checkAddress(endpoint); |
|
349 |
SecurityManager sm = System.getSecurityManager(); |
|
350 |
if (sm != null) |
|
351 |
sm.checkConnect(isa.getAddress().getHostAddress(), |
|
352 |
isa.getPort()); |
|
353 |
synchronized (blockingLock()) { |
|
354 |
int n = 0; |
|
355 |
try { |
|
356 |
try { |
|
357 |
begin(); |
|
358 |
synchronized (stateLock) { |
|
359 |
if (!isOpen()) { |
|
360 |
return false; |
|
361 |
} |
|
362 |
receiverThread = NativeThread.current(); |
|
363 |
} |
|
364 |
for (;;) { |
|
365 |
InetAddress ia = isa.getAddress(); |
|
366 |
if (ia.isAnyLocalAddress()) |
|
367 |
ia = InetAddress.getLocalHost(); |
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368 |
n = SctpNet.connect(fdVal, ia, isa.getPort()); |
2542 | 369 |
if ( (n == IOStatus.INTERRUPTED) |
370 |
&& isOpen()) |
|
371 |
continue; |
|
372 |
break; |
|
373 |
} |
|
374 |
} finally { |
|
375 |
receiverCleanup(); |
|
376 |
end((n > 0) || (n == IOStatus.UNAVAILABLE)); |
|
377 |
assert IOStatus.check(n); |
|
378 |
} |
|
379 |
} catch (IOException x) { |
|
380 |
/* If an exception was thrown, close the channel after |
|
381 |
* invoking end() so as to avoid bogus |
|
382 |
* AsynchronousCloseExceptions */ |
|
383 |
close(); |
|
384 |
throw x; |
|
385 |
} |
|
386 |
||
387 |
if (n > 0) { |
|
388 |
synchronized (stateLock) { |
|
389 |
/* Connection succeeded */ |
|
390 |
state = ChannelState.CONNECTED; |
|
391 |
if (!isBound()) { |
|
392 |
InetSocketAddress boundIsa = |
|
393 |
Net.localAddress(fd); |
|
394 |
port = boundIsa.getPort(); |
|
395 |
} |
|
396 |
||
397 |
/* Receive COMM_UP */ |
|
398 |
ByteBuffer buf = Util.getTemporaryDirectBuffer(50); |
|
399 |
try { |
|
400 |
receive(buf, null, null, true); |
|
401 |
} finally { |
|
402 |
Util.releaseTemporaryDirectBuffer(buf); |
|
403 |
} |
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|
404 |
|
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|
405 |
/* cache remote addresses */ |
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|
406 |
try { |
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|
407 |
remoteAddresses = getRemoteAddresses(); |
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6855335: Several changes in the SCTP implementation.
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parents:
2542
diff
changeset
|
408 |
} catch (IOException unused) { /* swallow exception */ } |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
409 |
|
2542 | 410 |
return true; |
411 |
} |
|
412 |
} else { |
|
413 |
synchronized (stateLock) { |
|
414 |
/* If nonblocking and no exception then connection |
|
415 |
* pending; disallow another invocation */ |
|
416 |
if (!isBlocking()) |
|
417 |
state = ChannelState.PENDING; |
|
418 |
else |
|
419 |
assert false; |
|
420 |
} |
|
421 |
} |
|
422 |
} |
|
423 |
return false; |
|
424 |
} |
|
425 |
} |
|
426 |
} |
|
427 |
||
428 |
@Override |
|
429 |
public boolean connect(SocketAddress endpoint, |
|
430 |
int maxOutStreams, |
|
431 |
int maxInStreams) |
|
432 |
throws IOException { |
|
3072
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
433 |
ensureOpenAndUnconnected(); |
2542 | 434 |
return setOption(SCTP_INIT_MAXSTREAMS, InitMaxStreams. |
435 |
create(maxInStreams, maxOutStreams)).connect(endpoint); |
|
436 |
||
437 |
} |
|
438 |
||
439 |
@Override |
|
440 |
public boolean isConnectionPending() { |
|
441 |
synchronized (stateLock) { |
|
442 |
return (state == ChannelState.PENDING); |
|
443 |
} |
|
444 |
} |
|
445 |
||
446 |
@Override |
|
447 |
public boolean finishConnect() throws IOException { |
|
448 |
synchronized (receiveLock) { |
|
449 |
synchronized (sendLock) { |
|
450 |
synchronized (stateLock) { |
|
451 |
if (!isOpen()) |
|
452 |
throw new ClosedChannelException(); |
|
453 |
if (isConnected()) |
|
454 |
return true; |
|
455 |
if (state != ChannelState.PENDING) |
|
456 |
throw new NoConnectionPendingException(); |
|
457 |
} |
|
458 |
int n = 0; |
|
459 |
try { |
|
460 |
try { |
|
461 |
begin(); |
|
462 |
synchronized (blockingLock()) { |
|
463 |
synchronized (stateLock) { |
|
464 |
if (!isOpen()) { |
|
465 |
return false; |
|
466 |
} |
|
467 |
receiverThread = NativeThread.current(); |
|
468 |
} |
|
469 |
if (!isBlocking()) { |
|
470 |
for (;;) { |
|
471 |
n = checkConnect(fd, false, readyToConnect); |
|
472 |
if ( (n == IOStatus.INTERRUPTED) |
|
473 |
&& isOpen()) |
|
474 |
continue; |
|
475 |
break; |
|
476 |
} |
|
477 |
} else { |
|
478 |
for (;;) { |
|
479 |
n = checkConnect(fd, true, readyToConnect); |
|
480 |
if (n == 0) { |
|
481 |
// Loop in case of |
|
482 |
// spurious notifications |
|
483 |
continue; |
|
484 |
} |
|
485 |
if ( (n == IOStatus.INTERRUPTED) |
|
486 |
&& isOpen()) |
|
487 |
continue; |
|
488 |
break; |
|
489 |
} |
|
490 |
} |
|
491 |
} |
|
492 |
} finally { |
|
493 |
synchronized (stateLock) { |
|
494 |
receiverThread = 0; |
|
495 |
if (state == ChannelState.KILLPENDING) { |
|
496 |
kill(); |
|
497 |
/* poll()/getsockopt() does not report |
|
498 |
* error (throws exception, with n = 0) |
|
499 |
* on Linux platform after dup2 and |
|
500 |
* signal-wakeup. Force n to 0 so the |
|
501 |
* end() can throw appropriate exception */ |
|
502 |
n = 0; |
|
503 |
} |
|
504 |
} |
|
505 |
end((n > 0) || (n == IOStatus.UNAVAILABLE)); |
|
506 |
assert IOStatus.check(n); |
|
507 |
} |
|
508 |
} catch (IOException x) { |
|
509 |
/* If an exception was thrown, close the channel after |
|
510 |
* invoking end() so as to avoid bogus |
|
511 |
* AsynchronousCloseExceptions */ |
|
512 |
close(); |
|
513 |
throw x; |
|
514 |
} |
|
515 |
||
516 |
if (n > 0) { |
|
517 |
synchronized (stateLock) { |
|
518 |
state = ChannelState.CONNECTED; |
|
519 |
if (!isBound()) { |
|
520 |
InetSocketAddress boundIsa = |
|
521 |
Net.localAddress(fd); |
|
522 |
port = boundIsa.getPort(); |
|
523 |
} |
|
524 |
||
525 |
/* Receive COMM_UP */ |
|
526 |
ByteBuffer buf = Util.getTemporaryDirectBuffer(50); |
|
527 |
try { |
|
528 |
receive(buf, null, null, true); |
|
529 |
} finally { |
|
530 |
Util.releaseTemporaryDirectBuffer(buf); |
|
531 |
} |
|
3072
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
532 |
|
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
533 |
/* cache remote addresses */ |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
534 |
try { |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
535 |
remoteAddresses = getRemoteAddresses(); |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
536 |
} catch (IOException unused) { /* swallow exception */ } |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
537 |
|
2542 | 538 |
return true; |
539 |
} |
|
540 |
} |
|
541 |
} |
|
542 |
} |
|
543 |
return false; |
|
544 |
} |
|
545 |
||
546 |
@Override |
|
547 |
protected void implConfigureBlocking(boolean block) throws IOException { |
|
548 |
IOUtil.configureBlocking(fd, block); |
|
549 |
} |
|
550 |
||
551 |
@Override |
|
552 |
public void implCloseSelectableChannel() throws IOException { |
|
553 |
synchronized (stateLock) { |
|
4669
11d1dbd3598d
6915313: Reorganize implementation to make it more feasible to port to JDK6
chegar
parents:
3320
diff
changeset
|
554 |
SctpNet.preClose(fdVal); |
2542 | 555 |
|
556 |
if (receiverThread != 0) |
|
557 |
NativeThread.signal(receiverThread); |
|
558 |
||
559 |
if (senderThread != 0) |
|
560 |
NativeThread.signal(senderThread); |
|
561 |
||
562 |
if (!isRegistered()) |
|
563 |
kill(); |
|
564 |
} |
|
565 |
} |
|
566 |
||
567 |
@Override |
|
568 |
public FileDescriptor getFD() { |
|
569 |
return fd; |
|
570 |
} |
|
571 |
||
572 |
@Override |
|
573 |
public int getFDVal() { |
|
574 |
return fdVal; |
|
575 |
} |
|
576 |
||
577 |
/** |
|
578 |
* Translates native poll revent ops into a ready operation ops |
|
579 |
*/ |
|
580 |
private boolean translateReadyOps(int ops, int initialOps, SelectionKeyImpl sk) { |
|
581 |
int intOps = sk.nioInterestOps(); |
|
582 |
int oldOps = sk.nioReadyOps(); |
|
583 |
int newOps = initialOps; |
|
584 |
||
585 |
if ((ops & PollArrayWrapper.POLLNVAL) != 0) { |
|
586 |
/* This should only happen if this channel is pre-closed while a |
|
587 |
* selection operation is in progress |
|
588 |
* ## Throw an error if this channel has not been pre-closed */ |
|
589 |
return false; |
|
590 |
} |
|
591 |
||
592 |
if ((ops & (PollArrayWrapper.POLLERR |
|
593 |
| PollArrayWrapper.POLLHUP)) != 0) { |
|
594 |
newOps = intOps; |
|
595 |
sk.nioReadyOps(newOps); |
|
596 |
/* No need to poll again in checkConnect, |
|
597 |
* the error will be detected there */ |
|
598 |
readyToConnect = true; |
|
599 |
return (newOps & ~oldOps) != 0; |
|
600 |
} |
|
601 |
||
602 |
if (((ops & PollArrayWrapper.POLLIN) != 0) && |
|
603 |
((intOps & SelectionKey.OP_READ) != 0) && |
|
604 |
isConnected()) |
|
605 |
newOps |= SelectionKey.OP_READ; |
|
606 |
||
607 |
if (((ops & PollArrayWrapper.POLLCONN) != 0) && |
|
608 |
((intOps & SelectionKey.OP_CONNECT) != 0) && |
|
609 |
((state == ChannelState.UNCONNECTED) || (state == ChannelState.PENDING))) { |
|
610 |
newOps |= SelectionKey.OP_CONNECT; |
|
611 |
readyToConnect = true; |
|
612 |
} |
|
613 |
||
614 |
if (((ops & PollArrayWrapper.POLLOUT) != 0) && |
|
615 |
((intOps & SelectionKey.OP_WRITE) != 0) && |
|
616 |
isConnected()) |
|
617 |
newOps |= SelectionKey.OP_WRITE; |
|
618 |
||
619 |
sk.nioReadyOps(newOps); |
|
620 |
return (newOps & ~oldOps) != 0; |
|
621 |
} |
|
622 |
||
623 |
@Override |
|
624 |
public boolean translateAndUpdateReadyOps(int ops, SelectionKeyImpl sk) { |
|
625 |
return translateReadyOps(ops, sk.nioReadyOps(), sk); |
|
626 |
} |
|
627 |
||
628 |
@Override |
|
629 |
@SuppressWarnings("all") |
|
630 |
public boolean translateAndSetReadyOps(int ops, SelectionKeyImpl sk) { |
|
631 |
return translateReadyOps(ops, 0, sk); |
|
632 |
} |
|
633 |
||
634 |
@Override |
|
635 |
public void translateAndSetInterestOps(int ops, SelectionKeyImpl sk) { |
|
636 |
int newOps = 0; |
|
637 |
if ((ops & SelectionKey.OP_READ) != 0) |
|
638 |
newOps |= PollArrayWrapper.POLLIN; |
|
639 |
if ((ops & SelectionKey.OP_WRITE) != 0) |
|
640 |
newOps |= PollArrayWrapper.POLLOUT; |
|
641 |
if ((ops & SelectionKey.OP_CONNECT) != 0) |
|
642 |
newOps |= PollArrayWrapper.POLLCONN; |
|
643 |
sk.selector.putEventOps(sk, newOps); |
|
644 |
} |
|
645 |
||
646 |
@Override |
|
647 |
public void kill() throws IOException { |
|
648 |
synchronized (stateLock) { |
|
649 |
if (state == ChannelState.KILLED) |
|
650 |
return; |
|
651 |
if (state == ChannelState.UNINITIALIZED) { |
|
652 |
state = ChannelState.KILLED; |
|
653 |
return; |
|
654 |
} |
|
655 |
assert !isOpen() && !isRegistered(); |
|
656 |
||
657 |
/* Postpone the kill if there is a waiting reader |
|
658 |
* or writer thread. */ |
|
659 |
if (receiverThread == 0 && senderThread == 0) { |
|
4669
11d1dbd3598d
6915313: Reorganize implementation to make it more feasible to port to JDK6
chegar
parents:
3320
diff
changeset
|
660 |
SctpNet.close(fdVal); |
2542 | 661 |
state = ChannelState.KILLED; |
662 |
} else { |
|
663 |
state = ChannelState.KILLPENDING; |
|
664 |
} |
|
665 |
} |
|
666 |
} |
|
667 |
||
668 |
@Override |
|
669 |
public <T> SctpChannel setOption(SctpSocketOption<T> name, T value) |
|
670 |
throws IOException { |
|
671 |
if (name == null) |
|
672 |
throw new NullPointerException(); |
|
673 |
if (!supportedOptions().contains(name)) |
|
674 |
throw new UnsupportedOperationException("'" + name + "' not supported"); |
|
675 |
||
676 |
synchronized (stateLock) { |
|
677 |
if (!isOpen()) |
|
678 |
throw new ClosedChannelException(); |
|
679 |
||
680 |
SctpNet.setSocketOption(fdVal, name, value, 0 /*oneToOne*/); |
|
681 |
} |
|
682 |
return this; |
|
683 |
} |
|
684 |
||
685 |
@Override |
|
686 |
@SuppressWarnings("unchecked") |
|
687 |
public <T> T getOption(SctpSocketOption<T> name) throws IOException { |
|
688 |
if (name == null) |
|
689 |
throw new NullPointerException(); |
|
690 |
if (!supportedOptions().contains(name)) |
|
691 |
throw new UnsupportedOperationException("'" + name + "' not supported"); |
|
692 |
||
693 |
synchronized (stateLock) { |
|
694 |
if (!isOpen()) |
|
695 |
throw new ClosedChannelException(); |
|
696 |
||
697 |
return (T)SctpNet.getSocketOption(fdVal, name, 0 /*oneToOne*/); |
|
698 |
} |
|
699 |
} |
|
700 |
||
701 |
private static class DefaultOptionsHolder { |
|
702 |
static final Set<SctpSocketOption<?>> defaultOptions = defaultOptions(); |
|
703 |
||
704 |
private static Set<SctpSocketOption<?>> defaultOptions() { |
|
705 |
HashSet<SctpSocketOption<?>> set = new HashSet<SctpSocketOption<?>>(10); |
|
706 |
set.add(SCTP_DISABLE_FRAGMENTS); |
|
707 |
set.add(SCTP_EXPLICIT_COMPLETE); |
|
708 |
set.add(SCTP_FRAGMENT_INTERLEAVE); |
|
709 |
set.add(SCTP_INIT_MAXSTREAMS); |
|
710 |
set.add(SCTP_NODELAY); |
|
711 |
set.add(SCTP_PRIMARY_ADDR); |
|
712 |
set.add(SCTP_SET_PEER_PRIMARY_ADDR); |
|
713 |
set.add(SO_SNDBUF); |
|
714 |
set.add(SO_RCVBUF); |
|
715 |
set.add(SO_LINGER); |
|
716 |
return Collections.unmodifiableSet(set); |
|
717 |
} |
|
718 |
} |
|
719 |
||
720 |
@Override |
|
721 |
public final Set<SctpSocketOption<?>> supportedOptions() { |
|
722 |
return DefaultOptionsHolder.defaultOptions; |
|
723 |
} |
|
724 |
||
725 |
@Override |
|
726 |
public <T> MessageInfo receive(ByteBuffer buffer, |
|
727 |
T attachment, |
|
728 |
NotificationHandler<T> handler) |
|
729 |
throws IOException { |
|
730 |
return receive(buffer, attachment, handler, false); |
|
731 |
} |
|
732 |
||
733 |
private <T> MessageInfo receive(ByteBuffer buffer, |
|
734 |
T attachment, |
|
735 |
NotificationHandler<T> handler, |
|
736 |
boolean fromConnect) |
|
737 |
throws IOException { |
|
738 |
if (buffer == null) |
|
739 |
throw new IllegalArgumentException("buffer cannot be null"); |
|
740 |
||
741 |
if (buffer.isReadOnly()) |
|
742 |
throw new IllegalArgumentException("Read-only buffer"); |
|
743 |
||
744 |
if (receiveInvoked.get()) |
|
745 |
throw new IllegalReceiveException( |
|
746 |
"cannot invoke receive from handler"); |
|
747 |
receiveInvoked.set(Boolean.TRUE); |
|
748 |
||
749 |
try { |
|
750 |
SctpResultContainer resultContainer = new SctpResultContainer(); |
|
751 |
do { |
|
752 |
resultContainer.clear(); |
|
753 |
synchronized (receiveLock) { |
|
754 |
if (!ensureReceiveOpen()) |
|
755 |
return null; |
|
756 |
||
757 |
int n = 0; |
|
758 |
try { |
|
759 |
begin(); |
|
760 |
||
761 |
synchronized (stateLock) { |
|
762 |
if(!isOpen()) |
|
763 |
return null; |
|
764 |
receiverThread = NativeThread.current(); |
|
765 |
} |
|
766 |
||
767 |
do { |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
768 |
n = receive(fdVal, buffer, resultContainer, fromConnect); |
2542 | 769 |
} while ((n == IOStatus.INTERRUPTED) && isOpen()); |
770 |
} finally { |
|
771 |
receiverCleanup(); |
|
772 |
end((n > 0) || (n == IOStatus.UNAVAILABLE)); |
|
773 |
assert IOStatus.check(n); |
|
774 |
} |
|
775 |
||
776 |
if (!resultContainer.isNotification()) { |
|
777 |
/* message or nothing */ |
|
778 |
if (resultContainer.hasSomething()) { |
|
779 |
/* Set the association before returning */ |
|
780 |
SctpMessageInfoImpl info = |
|
781 |
resultContainer.getMessageInfo(); |
|
782 |
synchronized (stateLock) { |
|
783 |
assert association != null; |
|
784 |
info.setAssociation(association); |
|
785 |
} |
|
786 |
return info; |
|
787 |
} else |
|
788 |
/* Non-blocking may return null if nothing available*/ |
|
789 |
return null; |
|
790 |
} else { /* notification */ |
|
791 |
synchronized (stateLock) { |
|
792 |
handleNotificationInternal( |
|
793 |
resultContainer); |
|
794 |
} |
|
795 |
} |
|
796 |
||
797 |
if (fromConnect) { |
|
798 |
/* If we reach here, then it was connect that invoked |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
799 |
* receive and received the COMM_UP. We have already |
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
800 |
* handled the COMM_UP with the internal notification |
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
801 |
* handler. Simply return. */ |
2542 | 802 |
return null; |
803 |
} |
|
804 |
} /* receiveLock */ |
|
805 |
} while (handler == null ? true : |
|
806 |
(invokeNotificationHandler(resultContainer, handler, attachment) |
|
807 |
== HandlerResult.CONTINUE)); |
|
808 |
||
809 |
return null; |
|
810 |
} finally { |
|
811 |
receiveInvoked.set(Boolean.FALSE); |
|
812 |
} |
|
813 |
} |
|
814 |
||
815 |
private int receive(int fd, |
|
816 |
ByteBuffer dst, |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
817 |
SctpResultContainer resultContainer, |
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
818 |
boolean peek) |
2542 | 819 |
throws IOException { |
820 |
int pos = dst.position(); |
|
821 |
int lim = dst.limit(); |
|
822 |
assert (pos <= lim); |
|
823 |
int rem = (pos <= lim ? lim - pos : 0); |
|
824 |
if (dst instanceof DirectBuffer && rem > 0) |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
825 |
return receiveIntoNativeBuffer(fd, resultContainer, dst, rem, pos, peek); |
2542 | 826 |
|
827 |
/* Substitute a native buffer */ |
|
828 |
int newSize = Math.max(rem, 1); |
|
829 |
ByteBuffer bb = Util.getTemporaryDirectBuffer(newSize); |
|
830 |
try { |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
831 |
int n = receiveIntoNativeBuffer(fd, resultContainer, bb, newSize, 0, peek); |
2542 | 832 |
bb.flip(); |
833 |
if (n > 0 && rem > 0) |
|
834 |
dst.put(bb); |
|
835 |
return n; |
|
836 |
} finally { |
|
837 |
Util.releaseTemporaryDirectBuffer(bb); |
|
838 |
} |
|
839 |
} |
|
840 |
||
841 |
private int receiveIntoNativeBuffer(int fd, |
|
842 |
SctpResultContainer resultContainer, |
|
843 |
ByteBuffer bb, |
|
844 |
int rem, |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
845 |
int pos, |
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
846 |
boolean peek) |
2542 | 847 |
throws IOException |
848 |
{ |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
849 |
int n = receive0(fd, resultContainer, ((DirectBuffer)bb).address() + pos, rem, peek); |
2542 | 850 |
|
851 |
if (n > 0) |
|
852 |
bb.position(pos + n); |
|
853 |
return n; |
|
854 |
} |
|
855 |
||
856 |
private InternalNotificationHandler<?> internalNotificationHandler = |
|
857 |
new InternalNotificationHandler(); |
|
858 |
||
859 |
private void handleNotificationInternal(SctpResultContainer resultContainer) |
|
860 |
{ |
|
861 |
invokeNotificationHandler(resultContainer, |
|
862 |
internalNotificationHandler, null); |
|
863 |
} |
|
864 |
||
865 |
private class InternalNotificationHandler<T> |
|
866 |
extends AbstractNotificationHandler<T> |
|
867 |
{ |
|
868 |
@Override |
|
869 |
public HandlerResult handleNotification( |
|
870 |
AssociationChangeNotification not, T unused) { |
|
871 |
if (not.event().equals( |
|
872 |
AssociationChangeNotification.AssocChangeEvent.COMM_UP)) { |
|
873 |
assert association == null; |
|
874 |
SctpAssocChange sac = (SctpAssocChange) not; |
|
875 |
association = new SctpAssociationImpl |
|
876 |
(sac.assocId(), sac.maxInStreams(), sac.maxOutStreams()); |
|
877 |
} |
|
878 |
return HandlerResult.CONTINUE; |
|
879 |
} |
|
880 |
} |
|
881 |
||
882 |
private <T> HandlerResult invokeNotificationHandler |
|
883 |
(SctpResultContainer resultContainer, |
|
884 |
NotificationHandler<T> handler, |
|
885 |
T attachment) { |
|
886 |
SctpNotification notification = resultContainer.notification(); |
|
887 |
synchronized (stateLock) { |
|
888 |
notification.setAssociation(association); |
|
889 |
} |
|
890 |
||
891 |
if (!(handler instanceof AbstractNotificationHandler)) { |
|
892 |
return handler.handleNotification(notification, attachment); |
|
893 |
} |
|
894 |
||
895 |
/* AbstractNotificationHandler */ |
|
896 |
AbstractNotificationHandler absHandler = |
|
897 |
(AbstractNotificationHandler)handler; |
|
898 |
switch(resultContainer.type()) { |
|
899 |
case ASSOCIATION_CHANGED : |
|
900 |
return absHandler.handleNotification( |
|
901 |
resultContainer.getAssociationChanged(), attachment); |
|
902 |
case PEER_ADDRESS_CHANGED : |
|
903 |
return absHandler.handleNotification( |
|
904 |
resultContainer.getPeerAddressChanged(), attachment); |
|
905 |
case SEND_FAILED : |
|
906 |
return absHandler.handleNotification( |
|
907 |
resultContainer.getSendFailed(), attachment); |
|
908 |
case SHUTDOWN : |
|
909 |
return absHandler.handleNotification( |
|
910 |
resultContainer.getShutdown(), attachment); |
|
911 |
default : |
|
912 |
/* implementation specific handlers */ |
|
913 |
return absHandler.handleNotification( |
|
914 |
resultContainer.notification(), attachment); |
|
915 |
} |
|
916 |
} |
|
917 |
||
918 |
private void checkAssociation(Association sendAssociation) { |
|
919 |
synchronized (stateLock) { |
|
920 |
if (sendAssociation != null && !sendAssociation.equals(association)) { |
|
921 |
throw new IllegalArgumentException( |
|
922 |
"Cannot send to another association"); |
|
923 |
} |
|
924 |
} |
|
925 |
} |
|
926 |
||
927 |
private void checkStreamNumber(int streamNumber) { |
|
928 |
synchronized (stateLock) { |
|
929 |
if (association != null) { |
|
930 |
if (streamNumber < 0 || |
|
931 |
streamNumber >= association.maxOutboundStreams()) |
|
932 |
throw new InvalidStreamException(); |
|
933 |
} |
|
934 |
} |
|
935 |
} |
|
936 |
||
937 |
/* TODO: Add support for ttl and isComplete to both 121 12M |
|
938 |
* SCTP_EOR not yet supported on reference platforms |
|
939 |
* TTL support limited... |
|
940 |
*/ |
|
941 |
@Override |
|
942 |
public int send(ByteBuffer buffer, MessageInfo messageInfo) |
|
943 |
throws IOException { |
|
944 |
if (buffer == null) |
|
945 |
throw new IllegalArgumentException("buffer cannot be null"); |
|
946 |
||
947 |
if (messageInfo == null) |
|
948 |
throw new IllegalArgumentException("messageInfo cannot be null"); |
|
949 |
||
950 |
checkAssociation(messageInfo.association()); |
|
951 |
checkStreamNumber(messageInfo.streamNumber()); |
|
952 |
||
953 |
synchronized (sendLock) { |
|
954 |
ensureSendOpen(); |
|
955 |
||
956 |
int n = 0; |
|
957 |
try { |
|
958 |
begin(); |
|
959 |
||
960 |
synchronized (stateLock) { |
|
961 |
if(!isOpen()) |
|
962 |
return 0; |
|
963 |
senderThread = NativeThread.current(); |
|
964 |
} |
|
965 |
||
966 |
do { |
|
967 |
n = send(fdVal, buffer, messageInfo); |
|
968 |
} while ((n == IOStatus.INTERRUPTED) && isOpen()); |
|
969 |
||
970 |
return IOStatus.normalize(n); |
|
971 |
} finally { |
|
972 |
senderCleanup(); |
|
973 |
end((n > 0) || (n == IOStatus.UNAVAILABLE)); |
|
974 |
assert IOStatus.check(n); |
|
975 |
} |
|
976 |
} |
|
977 |
} |
|
978 |
||
979 |
private int send(int fd, ByteBuffer src, MessageInfo messageInfo) |
|
980 |
throws IOException { |
|
981 |
int streamNumber = messageInfo.streamNumber(); |
|
982 |
SocketAddress target = messageInfo.address(); |
|
983 |
boolean unordered = messageInfo.isUnordered(); |
|
984 |
int ppid = messageInfo.payloadProtocolID(); |
|
985 |
int pos = src.position(); |
|
986 |
int lim = src.limit(); |
|
987 |
||
3072
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
988 |
assert (pos <= lim && streamNumber >= 0); |
2542 | 989 |
int rem = (pos <= lim ? lim - pos : 0); |
990 |
||
991 |
if (src instanceof DirectBuffer) |
|
992 |
return sendFromNativeBuffer(fd, src, rem, pos, target, streamNumber, |
|
993 |
unordered, ppid); |
|
994 |
||
995 |
/* Substitute a native buffer */ |
|
996 |
ByteBuffer bb = Util.getTemporaryDirectBuffer(rem); |
|
997 |
try { |
|
998 |
bb.put(src); |
|
999 |
bb.flip(); |
|
1000 |
/* Do not update src until we see how many bytes were written */ |
|
1001 |
src.position(pos); |
|
1002 |
||
1003 |
int n = sendFromNativeBuffer(fd, bb, rem, pos, target, streamNumber, |
|
1004 |
unordered, ppid); |
|
1005 |
if (n > 0) { |
|
1006 |
/* now update src */ |
|
1007 |
src.position(pos + n); |
|
1008 |
} |
|
1009 |
return n; |
|
1010 |
} finally { |
|
1011 |
Util.releaseTemporaryDirectBuffer(bb); |
|
1012 |
} |
|
1013 |
} |
|
1014 |
||
1015 |
private int sendFromNativeBuffer(int fd, |
|
1016 |
ByteBuffer bb, |
|
1017 |
int rem, |
|
1018 |
int pos, |
|
1019 |
SocketAddress target, |
|
1020 |
int streamNumber, |
|
1021 |
boolean unordered, |
|
1022 |
int ppid) |
|
1023 |
throws IOException { |
|
1024 |
int written = send0(fd, ((DirectBuffer)bb).address() + pos, |
|
1025 |
rem, target, -1 /*121*/, streamNumber, unordered, ppid); |
|
1026 |
if (written > 0) |
|
1027 |
bb.position(pos + written); |
|
1028 |
return written; |
|
1029 |
} |
|
1030 |
||
1031 |
@Override |
|
1032 |
public SctpChannel shutdown() throws IOException { |
|
1033 |
synchronized(stateLock) { |
|
1034 |
if (isShutdown) |
|
1035 |
return this; |
|
1036 |
||
1037 |
ensureSendOpen(); |
|
1038 |
SctpNet.shutdown(fdVal, -1); |
|
1039 |
if (senderThread != 0) |
|
1040 |
NativeThread.signal(senderThread); |
|
1041 |
isShutdown = true; |
|
1042 |
} |
|
1043 |
return this; |
|
1044 |
} |
|
1045 |
||
1046 |
@Override |
|
1047 |
public Set<SocketAddress> getAllLocalAddresses() |
|
1048 |
throws IOException { |
|
1049 |
synchronized (stateLock) { |
|
1050 |
if (!isOpen()) |
|
1051 |
throw new ClosedChannelException(); |
|
1052 |
if (!isBound()) |
|
1053 |
return Collections.EMPTY_SET; |
|
1054 |
||
1055 |
return SctpNet.getLocalAddresses(fdVal); |
|
1056 |
} |
|
1057 |
} |
|
1058 |
||
1059 |
@Override |
|
1060 |
public Set<SocketAddress> getRemoteAddresses() |
|
1061 |
throws IOException { |
|
1062 |
synchronized (stateLock) { |
|
1063 |
if (!isOpen()) |
|
1064 |
throw new ClosedChannelException(); |
|
3072
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1065 |
if (!isConnected() || isShutdown) |
2542 | 1066 |
return Collections.EMPTY_SET; |
1067 |
||
3072
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1068 |
try { |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1069 |
return SctpNet.getRemoteAddresses(fdVal, 0/*unused*/); |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1070 |
} catch (SocketException unused) { |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1071 |
/* an open connected channel should always have remote addresses */ |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1072 |
return remoteAddresses; |
a801b122142f
6855335: Several changes in the SCTP implementation.
chegar
parents:
2542
diff
changeset
|
1073 |
} |
2542 | 1074 |
} |
1075 |
} |
|
1076 |
||
1077 |
/* Native */ |
|
1078 |
private static native void initIDs(); |
|
1079 |
||
1080 |
static native int receive0(int fd, SctpResultContainer resultContainer, |
|
3320
a7c037dd2e14
6863110: Newly connected/accepted SctpChannel should fire OP_READ if registered with a Selector
chegar
parents:
3072
diff
changeset
|
1081 |
long address, int length, boolean peek) throws IOException; |
2542 | 1082 |
|
1083 |
static native int send0(int fd, long address, int length, |
|
1084 |
SocketAddress target, int assocId, int streamNumber, |
|
1085 |
boolean unordered, int ppid) throws IOException; |
|
1086 |
||
1087 |
private static native int checkConnect(FileDescriptor fd, boolean block, |
|
1088 |
boolean ready) throws IOException; |
|
1089 |
||
1090 |
static { |
|
1091 |
Util.load(); /* loads nio & net native libraries */ |
|
1092 |
java.security.AccessController.doPrivileged( |
|
1093 |
new sun.security.action.LoadLibraryAction("sctp")); |
|
1094 |
initIDs(); |
|
1095 |
} |
|
1096 |
} |