diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/nio/SocketChannelImpl.java | |
download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
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.
Diffstat (limited to 'libjava/classpath/gnu/java/nio/SocketChannelImpl.java')
-rw-r--r-- | libjava/classpath/gnu/java/nio/SocketChannelImpl.java | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/nio/SocketChannelImpl.java b/libjava/classpath/gnu/java/nio/SocketChannelImpl.java new file mode 100644 index 000000000..0bb378c64 --- /dev/null +++ b/libjava/classpath/gnu/java/nio/SocketChannelImpl.java @@ -0,0 +1,265 @@ +/* SocketChannelImpl.java -- + Copyright (C) 2002, 2003, 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 gnu.java.nio; + +import java.io.IOException; +import java.net.InetSocketAddress; +import java.net.Socket; +import java.net.SocketAddress; +import java.nio.ByteBuffer; +import java.nio.channels.AlreadyConnectedException; +import java.nio.channels.ClosedChannelException; +import java.nio.channels.ConnectionPendingException; +import java.nio.channels.NoConnectionPendingException; +import java.nio.channels.NotYetConnectedException; +import java.nio.channels.SocketChannel; +import java.nio.channels.UnresolvedAddressException; +import java.nio.channels.UnsupportedAddressTypeException; +import java.nio.channels.spi.SelectorProvider; + +public final class SocketChannelImpl extends SocketChannel + implements VMChannelOwner +{ + private VMChannel channel; + //private PlainSocketImpl impl; + private NIOSocket socket; + private boolean connectionPending; + private boolean connected; + private InetSocketAddress connectAddress; + + public SocketChannelImpl(boolean create) throws IOException + { + // XXX consider adding security check; this is used by + // PlainSocketImpl. + this(new SelectorProviderImpl(), create); + } + + public SocketChannelImpl(VMChannel channel) throws IOException + { + this(new SelectorProviderImpl(), channel, false); + } + + SocketChannelImpl(SelectorProvider provider) throws IOException + { + this(provider, true); + } + + SocketChannelImpl(SelectorProvider provider, boolean create) + throws IOException + { + this(provider, new VMChannel(), create); + } + + SocketChannelImpl(SelectorProvider provider, VMChannel channel, boolean create) + throws IOException + { + super (provider); + this.channel = channel; + if (create) + channel.initSocket(true); + socket = new NIOSocket(this); + configureBlocking(true); + } + + /*SocketChannelImpl (SelectorProvider provider, + NIOSocket socket) + throws IOException + { + super (provider); + this.impl = socket.getPlainSocketImpl(); + this.socket = socket; + }*/ + + public void finalizer() + { + if (isConnected()) + { + try + { + close (); + } + catch (Exception e) + { + } + } + } + + //PlainSocketImpl getPlainSocketImpl() + //{ + // return null; // XXX + //} + + protected void implCloseSelectableChannel() throws IOException + { + channel.close(); + } + + protected void implConfigureBlocking (boolean blocking) throws IOException + { + channel.setBlocking(blocking); + } + + public boolean connect (SocketAddress remote) throws IOException + { + return connect(remote, 0); + } + + public boolean connect (SocketAddress remote, int timeout) throws IOException + { + if (!isOpen()) + throw new ClosedChannelException(); + + if (isConnected()) + throw new AlreadyConnectedException(); + + if (connectionPending) + throw new ConnectionPendingException(); + + if (!(remote instanceof InetSocketAddress)) + throw new UnsupportedAddressTypeException(); + + connectAddress = (InetSocketAddress) remote; + + if (connectAddress.isUnresolved()) + throw new UnresolvedAddressException(); + + connected = channel.connect(connectAddress, timeout); + connectionPending = !connected; + return connected; + } + + public boolean finishConnect() + throws IOException + { + if (!isOpen()) + throw new ClosedChannelException(); + + InetSocketAddress remote = channel.getPeerAddress(); + if (remote != null) + { + connectionPending = false; + return true; + } + + if (!connectionPending) + throw new NoConnectionPendingException(); + + return false; + } + + public boolean isConnected() + { + // Wait until finishConnect is called before transitioning to + // connected. + if (connectionPending) + return false; + try + { + InetSocketAddress remote = channel.getPeerAddress(); + return remote != null; + } + catch (IOException ioe) + { + ioe.printStackTrace(System.out); + return false; + } + } + + public boolean isConnectionPending () + { + return connectionPending; + } + + public Socket socket () + { + return socket; + } + + public int read(ByteBuffer dst) throws IOException + { + if (!isConnected()) + throw new NotYetConnectedException(); + + return channel.read(dst); + } + + public long read (ByteBuffer[] dsts, int offset, int length) + throws IOException + { + if (!isConnected()) + throw new NotYetConnectedException(); + + if ((offset < 0) + || (offset > dsts.length) + || (length < 0) + || (length > (dsts.length - offset))) + throw new IndexOutOfBoundsException(); + + return channel.readScattering(dsts, offset, length); + } + + public int write(ByteBuffer src) throws IOException + { + if (!isConnected()) + throw new NotYetConnectedException(); + + return channel.write(src); + } + + public long write(ByteBuffer[] srcs, int offset, int length) + throws IOException + { + if (!isConnected()) + throw new NotYetConnectedException(); + + if ((offset < 0) + || (offset > srcs.length) + || (length < 0) + || (length > (srcs.length - offset))) + throw new IndexOutOfBoundsException(); + + return channel.writeGathering(srcs, offset, length); + } + + public VMChannel getVMChannel() + { + // XXX security check? + return channel; + } +} |