/src/org/jruby/ext/socket/RubyUDPSocket.java
Java | 323 lines | 252 code | 33 blank | 38 comment | 35 complexity | cbf8cf1230b4baae80f5598708954984 MD5 | raw file
- /***** 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.IOException;
- import java.net.ConnectException;
- import java.net.InetAddress;
- import java.net.InetSocketAddress;
- import java.net.PortUnreachableException;
- import java.net.SocketException;
- import java.net.MulticastSocket;
- import java.net.UnknownHostException;
- import java.net.DatagramPacket;
- 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.RubyModule;
- 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.getClass("IPSocket"), UDPSOCKET_ALLOCATOR);
-
- rb_cUDPSocket.includeModule(runtime.getClass("Socket").getConstant("Constants"));
- rb_cUDPSocket.defineAnnotatedMethods(RubyUDPSocket.class);
- runtime.getObject().setConstant("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, new ModeFlags(ModeFlags.RDWR)));
- } 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(ThreadContext context, IRubyObject protocol) {
- // we basically ignore protocol. let someone report it...
- return initialize(context);
- }
-
- @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()
- || ((host instanceof RubyString)
- && ((RubyString) host).isEmpty())) {
- // host is nil or the empty string, bind to INADDR_ANY
- addr = new InetSocketAddress(RubyNumeric.fix2int(port));
- } else if (host instanceof RubyFixnum) {
- // passing in something like INADDR_ANY
- int intAddr = RubyNumeric.fix2int(host);
- RubyModule socketMod = context.getRuntime().getModule("Socket");
- if (intAddr == RubyNumeric.fix2int(socketMod.getConstant("INADDR_ANY"))) {
- addr = new InetSocketAddress(InetAddress.getByName("0.0.0.0"), RubyNumeric.fix2int(port));
- }
- } else {
- // passing in something like INADDR_ANY
- addr = new InetSocketAddress(InetAddress.getByName(host.convertToString().toString()), RubyNumeric.fix2int(port));
- }
- if (this.multicastStateManager == null) {
- ((DatagramChannel) this.getChannel()).socket().bind(addr);
- } else {
- this.multicastStateManager.rebindToPort(RubyNumeric.fix2int(port));
- }
- 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 (IOException 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 {
- InetSocketAddress sender = null;
- int length = RubyNumeric.fix2int(args[0]);
- ByteBuffer buf = ByteBuffer.allocate(length);
- byte[] buf2 = new byte[length];
- DatagramPacket recv = new DatagramPacket(buf2, buf2.length);
- if (this.multicastStateManager == null) {
- ((DatagramChannel) this.getChannel()).configureBlocking(false);
- context.getThread().select(this, SelectionKey.OP_READ);
- sender = (InetSocketAddress) ((DatagramChannel) this.getChannel()).receive(buf);
- } else {
- MulticastSocket ms = this.multicastStateManager.getMulticastSocket();
- ms.receive(recv);
- sender = (InetSocketAddress) recv.getSocketAddress();
- }
- // see JRUBY-4678
- if (sender == null) {
- throw context.getRuntime().newErrnoECONNRESETError();
- }
- 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 = null;
- if (this.multicastStateManager == null) {
- result = context.getRuntime().newString(new ByteList(buf.array(), 0, buf.position()));
- } else {
- result = context.getRuntime().newString(new ByteList(recv.getData(), 0, recv.getLength()));
- }
- return context.getRuntime().newArray(new IRubyObject[]{result, addressArray});
- } catch (UnknownHostException e) {
- throw sockerr(context.getRuntime(), "recvfrom: name or service not known");
- } catch (PortUnreachableException e) {
- throw context.getRuntime().newErrnoECONNREFUSEDError();
- } 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()).configureBlocking(false);
- context.getThread().select(this, SelectionKey.OP_READ);
- InetSocketAddress sender = (InetSocketAddress) ((DatagramChannel) this.getChannel()).receive(buf);
- // see JRUBY-4678
- if (sender == null) {
- throw context.getRuntime().newErrnoECONNRESETError();
- }
- 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 {
- int written;
- if (args.length >= 3) { // host and port given
- RubyString nameStr = args[2].convertToString();
- RubyString data = args[0].convertToString();
- ByteBuffer buf = ByteBuffer.wrap(data.getBytes());
- byte [] buf2 = data.getBytes();
- DatagramPacket sendDP = null;
- int port;
- if (args[3] instanceof RubyString) {
- jnr.netdb.Service service = jnr.netdb.Service.getServiceByName(args[3].asJavaString(), "udp");
- if (service != null) {
- port = service.getPort();
- } else {
- port = (int)args[3].convertToInteger("to_i").getLongValue();
- }
- } else {
- port = (int)args[3].convertToInteger().getLongValue();
- }
- InetAddress address = RubySocket.getRubyInetAddress(nameStr.getByteList());
- InetSocketAddress addr =
- new InetSocketAddress(address, port);
- if (this.multicastStateManager == null) {
- written = ((DatagramChannel) this.getChannel()).send(buf, addr);
- }
- else {
- sendDP = new DatagramPacket(buf2, buf2.length, address, port);
- MulticastSocket ms = this.multicastStateManager.getMulticastSocket();
- ms.send(sendDP);
- written = sendDP.getLength();
- }
- } else {
- RubyString data = args[0].convertToString();
- ByteBuffer buf = ByteBuffer.wrap(data.getBytes());
- written = ((DatagramChannel) this.getChannel()).write(buf);
- }
- return context.getRuntime().newFixnum(written);
- } 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, 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