/***** BEGIN LICENSE BLOCK *****
* Version: EPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/epl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2007 Ola Bini <ola@ologix.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the EPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the EPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.ext.socket;
import java.io.IOException;
import java.net.BindException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.UnknownHostException;
import java.net.SocketException;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyFixnum;
import org.jruby.RubyString;
import org.jruby.RubyThread;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.io.SelectorFactory;
import java.nio.channels.spi.SelectorProvider;
/**
* @author <a href="mailto:ola.bini@ki.se">Ola Bini</a>
*/
@JRubyClass(name="TCPServer", parent="TCPSocket")
public class RubyTCPServer extends RubyTCPSocket {
static void createTCPServer(Ruby runtime) {
RubyClass rb_cTCPServer = runtime.defineClass(
"TCPServer", runtime.getClass("TCPSocket"), TCPSERVER_ALLOCATOR);
rb_cTCPServer.defineAnnotatedMethods(RubyTCPServer.class);
runtime.getObject().setConstant("TCPserver",rb_cTCPServer);
}
private static ObjectAllocator TCPSERVER_ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klass) {
return new RubyTCPServer(runtime, klass);
}
};
public RubyTCPServer(Ruby runtime, RubyClass type) {
super(runtime, type);
}
@JRubyMethod(name = "initialize", required = 1, optional = 1, visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context, IRubyObject[] args) {
Ruby runtime = context.runtime;
IRubyObject _host = args[0];
IRubyObject _port = args.length > 1 ? args[1] : context.nil;
String host;
if(_host.isNil()|| ((_host instanceof RubyString) && ((RubyString) _host).isEmpty())) {
host = "0.0.0.0";
} else if (_host instanceof RubyFixnum) {
// numeric host, use it for port
_port = _host;
host = "0.0.0.0";
} else {
host = _host.convertToString().toString();
}
int port = SocketUtils.getPortFrom(context, _port);
try {
InetAddress addr = InetAddress.getByName(host);
ServerSocketChannel ssc = ServerSocketChannel.open();
InetSocketAddress socket_address = new InetSocketAddress(addr, port);
ssc.socket().bind(socket_address);
initSocket(newChannelFD(runtime, ssc));
} catch(UnknownHostException e) {
throw SocketUtils.sockerr(runtime, "initialize: name or service not known");
} catch(BindException e) {
throw runtime.newErrnoEADDRFromBindException(e);
} catch(SocketException e) {
String msg = e.getMessage();
if(msg.indexOf("Permission denied") != -1) {
throw runtime.newErrnoEACCESError("bind(2)");
} else {
throw SocketUtils.sockerr(runtime, "initialize: name or service not known");
}
} catch(IOException e) {
throw SocketUtils.sockerr(runtime, "initialize: name or service not known");
} catch (IllegalArgumentException iae) {
throw SocketUtils.sockerr(runtime, iae.getMessage());
}
return this;
}
@JRubyMethod(name = "accept")
public IRubyObject accept(ThreadContext context) {
Ruby runtime = context.runtime;
RubyTCPSocket socket = new RubyTCPSocket(runtime, runtime.getClass("TCPSocket"));
try {
RubyThread thread = context.getThread();
while (true) {
boolean ready = thread.select(this, SelectionKey.OP_ACCEPT);
if (!ready) {
// we were woken up without being selected...poll for thread events and go back to sleep
context.pollThreadEvents();
} else {
SocketChannel connected = getServerSocketChannel().accept();
if (connected == null) continue;
connected.finishConnect();
// Force the client socket to be blocking
synchronized (connected.blockingLock()) {
connected.configureBlocking(false);
connected.configureBlocking(true);
}
// otherwise one key has been selected (ours) so we get the channel and hand it off
socket.initSocket(newChannelFD(runtime, connected));
return socket;
}
}
} catch(IOException e) {
throw SocketUtils.sockerr(runtime, "problem when accepting");
}
}
@JRubyMethod(name = "accept_nonblock")
public IRubyObject accept_nonblock(ThreadContext context) {
Ruby runtime = context.runtime;
RubyTCPSocket socket = new RubyTCPSocket(runtime, runtime.getClass("TCPSocket"));
Selector selector = null;
ServerSocketChannel ssc = getServerSocketChannel();
synchronized (ssc.blockingLock()) {
boolean oldBlocking = ssc.isBlocking();
try {
ssc.configureBlocking(false);
selector = SelectorFactory.openWithRetryFrom(runtime, SelectorProvider.provider());
boolean ready = context.getThread().select(this, SelectionKey.OP_ACCEPT, 0);
if (!ready) {
// no connection immediately accepted, let them try again
throw runtime.newErrnoEAGAINError("Resource temporarily unavailable");
} else {
// otherwise one key has been selected (ours) so we get the channel and hand it off
socket.initSocket(newChannelFD(runtime, ssc.accept()));
return socket;
}
} catch(IOException e) {
throw SocketUtils.sockerr(context.runtime, "problem when accepting");
} finally {
try {
if (selector != null) selector.close();
} catch (Exception e) {
}
try {ssc.configureBlocking(oldBlocking);} catch (IOException ioe) {}
}
}
}
@JRubyMethod(name = "listen", required = 1)
public IRubyObject listen(ThreadContext context, IRubyObject backlog) {
return RubyFixnum.zero(context.runtime);
}
@JRubyMethod(name = "peeraddr", rest = true)
public IRubyObject peeraddr(ThreadContext context, IRubyObject[] args) {
throw context.runtime.newNotImplementedError("not supported");
}
@JRubyMethod(name = "getpeername", rest = true)
public IRubyObject getpeername(ThreadContext context, IRubyObject[] args) {
throw context.runtime.newNotImplementedError("not supported");
}
@JRubyMethod(rest = true, meta = true)
public static IRubyObject open(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
IRubyObject tcpServer = recv.callMethod(context, "new", args);
if (!block.isGiven()) return tcpServer;
try {
return block.yield(context, tcpServer);
} finally {
tcpServer.callMethod(context, "close");
}
}
public ServerSocketChannel getServerSocketChannel() {
return (ServerSocketChannel)getChannel();
}
@Override
public IRubyObject shutdown(ThreadContext context, IRubyObject[] args) {
// act like a platform that does not support shutdown for server sockets
throw context.runtime.newErrnoENOTCONNError();
}
@Override
public IRubyObject gets(ThreadContext context) {
throw context.runtime.newErrnoENOTCONNError();
}
@Override
public IRubyObject gets(ThreadContext context, IRubyObject sep) {
throw context.runtime.newErrnoENOTCONNError();
}
@Override
public IRubyObject gets(ThreadContext context, IRubyObject sep, IRubyObject limit) {
throw context.runtime.newErrnoENOTCONNError();
}
@Deprecated
public IRubyObject accept() {
return accept(getRuntime().getCurrentContext());
}
@Deprecated
public IRubyObject listen(IRubyObject backlog) {
return listen(getRuntime().getCurrentContext(), backlog);
}
@Deprecated
public static IRubyObject open(IRubyObject recv, IRubyObject[] args, Block block) {
return open(recv.getRuntime().getCurrentContext(), recv, args, block);
}
}