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-rw-r--r--libjava/java/nio/channels/SocketChannel.java248
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diff --git a/libjava/java/nio/channels/SocketChannel.java b/libjava/java/nio/channels/SocketChannel.java
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--- a/libjava/java/nio/channels/SocketChannel.java
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-/* SocketChannel.java --
- Copyright (C) 2002, 2004 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU Classpath is distributed in the hope that it will be useful, but
-WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-
-package java.nio.channels;
-
-import java.io.IOException;
-import java.net.Socket;
-import java.net.SocketAddress;
-import java.nio.ByteBuffer;
-import java.nio.channels.spi.AbstractSelectableChannel;
-import java.nio.channels.spi.SelectorProvider;
-
-/**
- * @author Michael Koch (konqueror@gmx.de)
- * @since 1.4
- */
-public abstract class SocketChannel extends AbstractSelectableChannel
- implements ByteChannel, ScatteringByteChannel, GatheringByteChannel
-{
- /**
- * Initializes this socket channel.
- */
- protected SocketChannel(SelectorProvider provider)
- {
- super(provider);
- }
-
- /**
- * Opens a socket channel.
- *
- * @return the new <code>SocketChannel</code> object
- *
- * @exception IOException If an error occurs
- */
- public static SocketChannel open() throws IOException
- {
- return SelectorProvider.provider().openSocketChannel();
- }
-
- /**
- * Opens a channel and connects it to a remote address.
- *
- * @return the new <code>SocketChannel</code> object
- *
- * @exception AsynchronousCloseException If this channel is already connected.
- * @exception ClosedByInterruptException If another thread interrupts the
- * current thread while the connect operation is in progress, thereby closing
- * the channel and setting the current thread's interrupt status.
- * @exception IOException If an error occurs
- * @exception SecurityException If a security manager has been installed and
- * it does not permit access to the given remote endpoint.
- * @exception UnresolvedAddressException If the given remote address is not
- * fully resolved.
- * @exception UnsupportedAddressTypeException If the type of the given remote
- * address is not supported.
- */
- public static SocketChannel open(SocketAddress remote)
- throws IOException
- {
- SocketChannel ch = open();
- ch.connect(remote);
- return ch;
- }
-
- /**
- * Reads data from the channel.
- *
- * @return the number of bytes read, zero is valid too, -1 if end of stream
- * is reached
- *
- * @exception IOException If an error occurs
- * @exception NotYetConnectedException If this channel is not yet connected.
- */
- public final long read(ByteBuffer[] dsts) throws IOException
- {
- long b = 0;
-
- for (int i = 0; i < dsts.length; i++)
- b += read(dsts[i]);
-
- return b;
- }
-
- /**
- * Writes data to the channel.
- *
- * @return the number of bytes written, zero is valid too
- *
- * @exception IOException If an error occurs
- * @exception NotYetConnectedException If this channel is not yet connected.
- */
- public final long write(ByteBuffer[] dsts) throws IOException
- {
- long b = 0;
-
- for (int i = 0; i < dsts.length; i++)
- b += write(dsts[i]);
-
- return b;
- }
-
- /**
- * Retrieves the valid operations for this channel.
- *
- * @return the valid operations
- */
- public final int validOps()
- {
- return SelectionKey.OP_CONNECT | SelectionKey.OP_READ
- | SelectionKey.OP_WRITE;
- }
-
- /**
- * Reads data from the channel.
- *
- * @return the number of bytes read, zero is valid too, -1 if end of stream
- * is reached
- *
- * @exception IOException If an error occurs
- * @exception NotYetConnectedException If this channel is not yet connected.
- */
- public abstract int read(ByteBuffer dst) throws IOException;
-
- /**
- * Connects the channel's socket to the remote address.
- *
- * @return <code>true</code> if the channel got successfully connected,
- * <code>false</code> if the channel is in non-blocking mode and connection
- * operation is still in progress.
- *
- * @exception AlreadyConnectedException If this channel is already connected.
- * @exception AsynchronousCloseException If this channel is already connected.
- * @exception ClosedByInterruptException If another thread interrupts the
- * current thread while the connect operation is in progress, thereby closing
- * the channel and setting the current thread's interrupt status.
- * @exception ClosedChannelException If this channel is closed.
- * @exception ConnectionPendingException If a non-blocking connection
- * operation is already in progress on this channel.
- * @exception IOException If an error occurs
- * @exception SecurityException If a security manager has been installed and
- * it does not permit access to the given remote endpoint.
- * @exception UnresolvedAddressException If the given remote address is not
- * fully resolved.
- * @exception UnsupportedAddressTypeException If the type of the given remote
- * address is not supported.
- */
- public abstract boolean connect(SocketAddress remote)
- throws IOException;
-
- /**
- * Finishes the process of connecting a socket channel.
- *
- * @exception AsynchronousCloseException If this channel is already connected.
- * @exception ClosedByInterruptException If another thread interrupts the
- * current thread while the connect operation is in progress, thereby closing
- * the channel and setting the current thread's interrupt status.
- * @exception ClosedChannelException If this channel is closed.
- * @exception IOException If an error occurs
- * @exception NoConnectionPendingException If this channel is not connected
- * and a connection operation has not been initiated.
- */
- public abstract boolean finishConnect() throws IOException;
-
- /**
- * Tells whether or not the channel's socket is connected.
- */
- public abstract boolean isConnected();
-
- /**
- * Tells whether or not a connection operation is in progress on this channel.
- */
- public abstract boolean isConnectionPending();
-
- /**
- * Reads data from the channel.
- *
- * @return the number of bytes read, zero is valid too, -1 if end of stream
- * is reached
- *
- * @exception IOException If an error occurs
- * @exception NotYetConnectedException If this channel is not yet connected.
- */
- public abstract long read(ByteBuffer[] dsts, int offset, int length)
- throws IOException;
-
- /**
- * Retrieves the channel's socket.
- *
- * @return the socket
- */
- public abstract Socket socket();
-
- /**
- * Writes data to the channel.
- *
- * @return the number of bytes written, zero is valid too
- *
- * @exception IOException If an error occurs
- * @exception NotYetConnectedException If this channel is not yet connected.
- */
- public abstract int write(ByteBuffer src) throws IOException;
-
- /**
- * Writes data to the channel.
- *
- * @return the number of bytes written, zero is valid too
- *
- * @exception IOException If an error occurs
- * @exception NotYetConnectedException If this channel is not yet connected.
- */
- public abstract long write(ByteBuffer[] srcs, int offset, int length)
- throws IOException;
-}
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