--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/sun/nio/ch/UnixDomainSocketChannelImpl.java Fri Oct 25 15:56:35 2019 +0100
@@ -0,0 +1,229 @@
+/*
+ * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.nio.ch;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+import java.io.UncheckedIOException;
+import java.net.ProtocolFamily;
+import java.net.Socket;
+import java.net.SocketAddress;
+import java.net.SocketException;
+import java.net.SocketOption;
+import java.net.SocketTimeoutException;
+import java.net.StandardProtocolFamily;
+import java.net.StandardSocketOptions;
+import java.nio.ByteBuffer;
+import java.nio.channels.AlreadyBoundException;
+import java.nio.channels.AlreadyConnectedException;
+import java.nio.channels.AsynchronousCloseException;
+import java.nio.channels.ClosedChannelException;
+import java.nio.channels.ConnectionPendingException;
+import java.nio.channels.IllegalBlockingModeException;
+import java.nio.channels.NoConnectionPendingException;
+import java.nio.channels.NotYetConnectedException;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.SocketChannel;
+import java.nio.channels.UnixDomainSocketAddress;
+import java.nio.channels.spi.SelectorProvider;
+import java.security.AccessController;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.locks.ReentrantLock;
+
+import sun.net.ConnectionResetException;
+import sun.net.NetHooks;
+import sun.net.ext.ExtendedSocketOptions;
+import sun.net.util.SocketExceptions;
+
+/**
+ * An implementation of SocketChannels
+ */
+
+public class UnixDomainSocketChannelImpl extends SocketChannelImpl
+{
+ public UnixDomainSocketChannelImpl(SelectorProvider sp, FileDescriptor fd, boolean bound)
+ throws IOException
+ {
+ super(sp, fd);
+ if (bound) {
+ synchronized (stateLock) {
+ this.localAddress = Net.localUnixAddress(fd);
+ }
+ }
+ }
+
+/*
+ public static AbstractSocketChannelImpl create(SelectorProvider sp, FileDescriptor fd) {
+ try {
+ return new UnixDomainSocketChannelImpl(sp, fd, false);
+ } catch (IOException e) {
+ throw new UncheckedIOException(e);
+ }
+ }
+*/
+
+ // Constructor for sockets obtained from server sockets
+ //
+ UnixDomainSocketChannelImpl(SelectorProvider sp, FileDescriptor fd, SocketAddress isa)
+ throws IOException
+ {
+ super(sp, fd);
+ synchronized (stateLock) {
+ this.localAddress = Net.localUnixAddress(fd);
+ this.remoteAddress = isa;
+ this.state = ST_CONNECTED;
+ }
+ }
+
+ @Override
+ public SocketAddress getLocalAddress() throws IOException {
+ synchronized (stateLock) {
+ ensureOpen();
+ return localAddress; // TODO: revealed local address?
+ }
+ }
+
+ @Override
+ public SocketAddress getRemoteAddress() throws IOException {
+ synchronized (stateLock) {
+ ensureOpen();
+ return remoteAddress;
+ }
+ }
+
+ @Override
+ public <T> SocketChannel setOption(SocketOption<T> name, T value)
+ throws IOException
+ {
+ Objects.requireNonNull(name);
+ if (!supportedOptions().contains(name))
+ throw new UnsupportedOperationException("'" + name + "' not supported");
+ if (!name.type().isInstance(value))
+ throw new IllegalArgumentException("Invalid value '" + value + "'");
+
+ synchronized (stateLock) {
+ ensureOpen();
+
+ // no options that require special handling
+ Net.setSocketOption(fd, name, value);
+ return this;
+ }
+ }
+
+ @Override
+ @SuppressWarnings("unchecked")
+ public <T> T getOption(SocketOption<T> name)
+ throws IOException
+ {
+ Objects.requireNonNull(name);
+ if (!supportedOptions().contains(name))
+ throw new UnsupportedOperationException("'" + name + "' not supported");
+
+ synchronized (stateLock) {
+ ensureOpen();
+ // no options that require special handling
+ return (T) Net.getSocketOption(fd, name); // AF_UNIX
+ }
+ }
+
+ private static class DefaultOptionsHolder {
+ static final Set<SocketOption<?>> defaultOptions = defaultOptions();
+
+ private static Set<SocketOption<?>> defaultOptions() {
+ HashSet<SocketOption<?>> set = new HashSet<>();
+ set.add(StandardSocketOptions.SO_SNDBUF);
+ set.add(StandardSocketOptions.SO_RCVBUF);
+ set.add(StandardSocketOptions.SO_REUSEADDR); // TODO: DELETE ME
+ set.add(StandardSocketOptions.SO_KEEPALIVE);
+ set.add(StandardSocketOptions.SO_LINGER);
+ return Collections.unmodifiableSet(set);
+ }
+ }
+
+ @Override
+ public final Set<SocketOption<?>> supportedOptions() {
+ return DefaultOptionsHolder.defaultOptions;
+ }
+
+ @Override
+ public SocketChannel bind(SocketAddress local) throws IOException {
+ readLock.lock();
+ try {
+ writeLock.lock();
+ try {
+ synchronized (stateLock) {
+ ensureOpen();
+ if (state == ST_CONNECTIONPENDING)
+ throw new ConnectionPendingException();
+ if (localAddress != null)
+ throw new AlreadyBoundException();
+ if (local == null)
+ throw new NullPointerException(); // TODO: ??
+ UnixDomainSocketAddress usa = Net.checkUnixAddress(local);
+ Net.unixDomainBind(fd, usa);
+ localAddress = Net.localUnixAddress(fd);
+ }
+ } finally {
+ writeLock.unlock();
+ }
+ } finally {
+ readLock.unlock();
+ }
+ return this;
+ }
+
+ public Socket socket() {
+ throw new UnsupportedOperationException("socket not supported");
+ }
+
+ /**
+ * Checks the remote address to which this channel is to be connected.
+ */
+ @Override
+ SocketAddress checkRemote(SocketAddress sa) throws IOException {
+ SocketAddress isa = Net.checkUnixAddress(sa);
+ return isa; // TODO
+ }
+
+ @Override
+ int connectImpl(FileDescriptor fd, SocketAddress sa) throws IOException {
+ UnixDomainSocketAddress isa = (UnixDomainSocketAddress)sa;
+ return Net.unixDomainConnect(fd, isa);
+ }
+
+ @Override
+ SocketAddress localAddressImpl(FileDescriptor fd) throws IOException {
+ return Net.localUnixAddress(fd);
+ }
+
+ String getRevealedLocalAddressAsString(SocketAddress sa) {
+ return sa.toString(); // TODO
+ }
+
+}