/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common 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/cpl-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 Damian Steer <pldms@mac.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 CPL, 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 CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.ext.socket;
import java.io.FileDescriptor;
import java.io.IOException;
import java.net.ConnectException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.nio.ByteBuffer;
import java.nio.channels.DatagramChannel;
import java.nio.channels.SelectionKey;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyFixnum;
import org.jruby.RubyIO;
import org.jruby.RubyNumeric;
import org.jruby.RubyString;
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.ByteList;
import org.jruby.util.io.ModeFlags;
import org.jruby.util.io.ChannelDescriptor;
/**
* @author <a href="mailto:pldms@mac.com">Damian Steer</a>
*/
@JRubyClass(name="UDPSocket", parent="IPSocket")
public class RubyUDPSocket extends RubyIPSocket {
static void createUDPSocket(Ruby runtime) {
RubyClass rb_cUDPSocket = runtime.defineClass("UDPSocket", runtime.fastGetClass("IPSocket"), UDPSOCKET_ALLOCATOR);
rb_cUDPSocket.includeModule(runtime.fastGetClass("Socket").fastGetConstant("Constants"));
rb_cUDPSocket.defineAnnotatedMethods(RubyUDPSocket.class);
runtime.getObject().fastSetConstant("UDPsocket", rb_cUDPSocket);
}
private static ObjectAllocator UDPSOCKET_ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klass) {
return new RubyUDPSocket(runtime, klass);
}
};
public RubyUDPSocket(Ruby runtime, RubyClass type) {
super(runtime, type);
}
@JRubyMethod(visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context) {
try {
DatagramChannel channel = DatagramChannel.open();
initSocket(context.getRuntime(), new ChannelDescriptor(channel, RubyIO.getNewFileno(), new ModeFlags(ModeFlags.RDWR), new FileDescriptor()));
} catch (org.jruby.util.io.InvalidValueException ex) {
throw context.getRuntime().newErrnoEINVALError();
} catch (ConnectException e) {
throw context.getRuntime().newErrnoECONNREFUSEDError();
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "initialize: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "initialize: name or service not known");
}
return this;
}
@JRubyMethod(visibility = Visibility.PRIVATE)
public IRubyObject initialize(IRubyObject protocol) {
// we basically ignore protocol. let someone report it...
return initialize();
}
public IRubyObject setsockopt(ThreadContext context, IRubyObject[] args) {
// Stubbed out
return context.getRuntime().getNil();
}
@Deprecated
public IRubyObject bind(IRubyObject host, IRubyObject port) {
return bind(getRuntime().getCurrentContext(), host, port);
}
@JRubyMethod
public IRubyObject bind(ThreadContext context, IRubyObject host, IRubyObject port) {
InetSocketAddress addr = null;
try {
if (host.isNil()) {
addr = new InetSocketAddress(RubyNumeric.fix2int(port));
} else {
addr = new InetSocketAddress(InetAddress.getByName(host.convertToString().toString()), RubyNumeric.fix2int(port));
}
((DatagramChannel) this.getChannel()).socket().bind(addr);
return RubyFixnum.zero(context.getRuntime());
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} catch (SocketException e) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} catch (Error e) {
// Workaround for a bug in Sun's JDK 1.5.x, see
// http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6303753
if (e.getCause() instanceof SocketException) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} else {
throw e;
}
}
}
@Deprecated
public IRubyObject connect(IRubyObject host, IRubyObject port) {
return connect(getRuntime().getCurrentContext(), host, port);
}
@JRubyMethod
public IRubyObject connect(ThreadContext context, IRubyObject host, IRubyObject port) {
try {
InetSocketAddress addr;
addr = new InetSocketAddress(InetAddress.getByName(host.convertToString().toString()), RubyNumeric.fix2int(port));
((DatagramChannel) this.getChannel()).connect(addr);
return RubyFixnum.zero(context.getRuntime());
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "connect: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "connect: name or service not known");
}
}
@Deprecated
public IRubyObject recvfrom(IRubyObject[] args) {
return recvfrom(getRuntime().getCurrentContext(), args);
}
@JRubyMethod(required = 1, rest = true)
public IRubyObject recvfrom(ThreadContext context, IRubyObject[] args) {
try {
int length = RubyNumeric.fix2int(args[0]);
ByteBuffer buf = ByteBuffer.allocate(length);
((DatagramChannel) this.getChannel()).configureBlocking(false);
context.getThread().select(this, SelectionKey.OP_READ);
InetSocketAddress sender = (InetSocketAddress) ((DatagramChannel) this.getChannel()).receive(buf);
IRubyObject addressArray = context.getRuntime().newArray(new IRubyObject[]{
context.getRuntime().newString("AF_INET"),
context.getRuntime().newFixnum(sender.getPort()),
context.getRuntime().newString(sender.getHostName()),
context.getRuntime().newString(sender.getAddress().getHostAddress())
});
IRubyObject result = context.getRuntime().newString(new ByteList(buf.array(), 0, buf.position()));
return context.getRuntime().newArray(new IRubyObject[]{result, addressArray});
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "recvfrom: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "recvfrom: name or service not known");
}
}
@Override
public IRubyObject recv(ThreadContext context, IRubyObject[] args) {
try {
int length = RubyNumeric.fix2int(args[0]);
ByteBuffer buf = ByteBuffer.allocate(length);
((DatagramChannel) this.getChannel()).receive(buf);
return context.getRuntime().newString(new ByteList(buf.array(), 0, buf.position()));
} catch (IOException e) {
throw sockerr(context.getRuntime(), "recv: name or service not known");
}
}
@Deprecated
public IRubyObject send(IRubyObject[] args) {
return send(getRuntime().getCurrentContext(), args);
}
@JRubyMethod(required = 1, rest = true)
public IRubyObject send(ThreadContext context, IRubyObject[] args) {
try {
if (args.length >= 3) { // host and port given
InetSocketAddress addr =
new InetSocketAddress(InetAddress.getByName(args[2].convertToString().toString()), RubyNumeric.fix2int(args[3]));
RubyString data = args[0].convertToString();
ByteBuffer buf = ByteBuffer.wrap(data.getBytes());
((DatagramChannel) this.getChannel()).send(buf, addr);
return data.length();
} else {
RubyString data = args[0].convertToString();
ByteBuffer buf = ByteBuffer.wrap(data.getBytes());
((DatagramChannel) this.getChannel()).write(buf);
return data.length();
}
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "send: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "send: name or service not known");
}
}
@Deprecated
public static IRubyObject open(IRubyObject recv, IRubyObject[] args, Block block) {
return open(recv.getRuntime().getCurrentContext(), recv, args, block);
}
@JRubyMethod(rest = true, frame = true, meta = true)
public static IRubyObject open(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
RubyUDPSocket sock = (RubyUDPSocket) recv.callMethod(context, "new", args);
if (!block.isGiven()) {
return sock;
}
try {
return block.yield(context, sock);
} finally {
if (sock.openFile.isOpen()) {
sock.close();
}
}
}
}// RubyUDPSocket