From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../java/nio/channels/DatagramChannel.java | 208 +++++++++++++++++++++ 1 file changed, 208 insertions(+) create mode 100644 libjava/classpath/java/nio/channels/DatagramChannel.java (limited to 'libjava/classpath/java/nio/channels/DatagramChannel.java') diff --git a/libjava/classpath/java/nio/channels/DatagramChannel.java b/libjava/classpath/java/nio/channels/DatagramChannel.java new file mode 100644 index 000000000..b8815f47c --- /dev/null +++ b/libjava/classpath/java/nio/channels/DatagramChannel.java @@ -0,0 +1,208 @@ +/* DatagramChannel.java -- + Copyright (C) 2002 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.DatagramSocket; +import java.net.SocketAddress; +import java.nio.ByteBuffer; +import java.nio.channels.spi.AbstractSelectableChannel; +import java.nio.channels.spi.SelectorProvider; + + +/** + * @since 1.4 + */ +public abstract class DatagramChannel extends AbstractSelectableChannel + implements ByteChannel, ScatteringByteChannel, GatheringByteChannel +{ + /** + * Initializes the channel. + */ + protected DatagramChannel(SelectorProvider provider) + { + super(provider); + } + + /** + * Opens a datagram channel. + * + * @exception IOException If an error occurs + */ + public static DatagramChannel open() throws IOException + { + return SelectorProvider.provider().openDatagramChannel(); + } + + /** + * Reads data from this channel. + */ + 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 this channel. + * + * @exception IOException If an error occurs + * @exception NotYetConnectedException The channel's socket is not connected. + */ + public final long write(ByteBuffer[] srcs) throws IOException + { + long b = 0; + + for (int i = 0; i < srcs.length; i++) + b += write(srcs[i]); + + return b; + } + + /** + * Connects this channel's socket. + * + * @exception AsynchronousCloseException If another thread closes this channel + * while the connect operation is in progress. + * @exception ClosedByInterruptException If another thread interrupts the + * current thread while the read 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 SecurityException If a security manager has been installed and + * it does not permit datagrams to be sent to the given address. + */ + public abstract DatagramChannel connect(SocketAddress remote) + throws IOException; + + /** + * Disonnects this channel's socket. + * + * @exception IOException If an error occurs + */ + public abstract DatagramChannel disconnect() throws IOException; + + /** + * Tells whether or not this channel's socket is connected. + * + * @exception NotYetConnectedException The channel's socket is not connected. + */ + public abstract boolean isConnected(); + + /** + * Reads data from this channel. + */ + public abstract int read(ByteBuffer dst) throws IOException; + + /** + * Reads data from this channel. + * + * @exception IOException If an error occurs. + * @exception NotYetConnectedException The channel's socket is not connected. + */ + public abstract long read(ByteBuffer[] dsts, int offset, int length) + throws IOException; + + /** + * Receives a datagram via this channel. + * + * @exception AsynchronousCloseException If another thread closes this channel + * while the connect operation is in progress. + * @exception ClosedByInterruptException If another thread interrupts the + * current thread while the read 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 SecurityException If a security manager has been installed and + * it does not permit datagrams to be sent to the given address. + */ + public abstract SocketAddress receive(ByteBuffer dst) + throws IOException; + + /** + * Sends a datagram via this channel. + * + * @exception AsynchronousCloseException If another thread closes this channel + * while the connect operation is in progress. + * @exception ClosedByInterruptException If another thread interrupts the + * current thread while the read 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 SecurityException If a security manager has been installed and + * it does not permit datagrams to be sent to the given address. + */ + public abstract int send(ByteBuffer src, SocketAddress target) + throws IOException; + + /** + * Retrieves the channel's socket. + */ + public abstract DatagramSocket socket(); + + /** + * Writes data to this channel. + * + * @exception IOException If an error occurs. + * @exception NotYetConnectedException The channel's socket is not connected. + */ + public abstract int write(ByteBuffer src) throws IOException; + + /** + * Writes data to this channel. + * + * @exception IOException If an error occurs. + * @exception NotYetConnectedException The channel's socket is not connected. + */ + public abstract long write(ByteBuffer[] srcs, int offset, int length) + throws IOException; + + /** + * Retrieves the valid operations for this channel. + * + * @exception NotYetConnectedException The channel's socket is not connected. + */ + public final int validOps() + { + return SelectionKey.OP_READ | SelectionKey.OP_WRITE; + } +} -- cgit v1.2.3