Example #1
0
        /*
         * Wait for a message to arrive for this mailbox.
         *
         * @param timeout the time, in milliseconds, to wait for a message.
         *
         * @return an {@link OtpMsg OtpMsg} containing the header
         * information as well as the body of the next message waiting in
         * this mailbox.
         *
         * @exception Exit if a linked {@link Pid pid} has
         * exited or has sent an exit signal to this mailbox.
         *
         * @exception InterruptedException if no message if the method
         * times out before a message becomes available.
         **/
        public virtual OtpMsg receiveMsg(long timeout)
        {
            OtpMsg m;

            try {
                m = (OtpMsg)queue.get(timeout);
            } catch (System.Threading.ThreadInterruptedException) {
                m = null;
            }

            if (m == null)
            {
                return(null);
            }

            switch (m.type())
            {
            case OtpMsg.Tag.exitTag:
            case OtpMsg.Tag.exit2Tag:
                try
                {
                    Erlang.Object o = m.getMsg();
                    throw new Erlang.Exit(o.ToString(), m.getSenderPid());
                }
                catch (Erlang.DecodeException)
                {
                    throw new Erlang.Exit("unknown", m.getSenderPid());
                }

            default:
                return(m);
            }
        }
Example #2
0
        /*
         * Receive an RPC reply from the remote Erlang node. This
         * convenience function receives a message from the remote node, and
         * expects it to have the following format:
         *
         * <pre>
         * {rex, Term}
         * </pre>
         *
         * @return the second element of the tuple if the received message
         * is a two-tuple, otherwise null. No further error checking is
         * performed.
         *
         * @exception C#.io.IOException if the connection is not active or
         * a communication error occurs.
         *
         * @exception Erlang.Exit if an exit signal is
         * received from a process on the peer node.
         *
         * @exception OtpAuthException if the remote node
         * sends a message containing an invalid cookie.
         **/
        public virtual Erlang.Object receiveRPC()
        {
            Erlang.Object msg = receive();
            Debug.WriteLine("receiveRPC: " + msg.ToString());

            return(AbstractConnection.decodeRPC(msg));
        }
Example #3
0
 public int encode_size(Erlang.Object o)
 {
     if (o is Erlang.Atom)
     {
         return(1 + 2 + o.atomValue().Length);
     }
     else if (o is Erlang.Boolean)
     {
         return(1 + 2 + (o.boolValue()
                                               ? Erlang.Boolean.s_true.atomValue().Length
                                               : Erlang.Boolean.s_false.atomValue().Length));
     }
     else if (o is Erlang.Binary)
     {
         return(5 + o.binaryValue().Length);
     }
     else if (o is Erlang.Long)
     {
         long l = o.longValue();
         if ((l & 0xff) == l)
         {
             return(2);
         }
         else if ((l <= OtpExternal.erlMax) && (l >= OtpExternal.erlMin))
         {
             return(5);
         }
         return(long_arity(l));
     }
     else if (o is Erlang.Byte)
     {
         return(1 + 1);
     }
     else if (o is Erlang.Double)
     {
         return(9);
     }
     else if (o is Erlang.String)
     {
         string l = o.stringValue();
         if (l.Length == 0)
         {
             return(1);
         }
         if (l.Length < 0xffff)
         {
             return(2 + l.Length);
         }
         return(1 + 4 + 2 * l.Length);
     }
     else if (o is Erlang.List)
     {
         Erlang.List l = o.listValue();
         if (l.arity() == 0)
         {
             return(1);
         }
         int sz = 5;
         for (int i = 0; i < l.arity(); i++)
         {
             sz += encode_size(l[i]);
         }
         return(sz);
     }
     else if (o is Erlang.Tuple)
     {
         Erlang.Tuple l  = o.tupleValue();
         int          sz = 1 + (l.arity() < 0xff ? 1 : 4);
         for (int i = 0; i < l.arity(); i++)
         {
             sz += encode_size(l[i]);
         }
         return(sz);
     }
     else if (o is Erlang.Pid)
     {
         Erlang.Pid p = o.pidValue();
         return(1 + (1 + 2 + p.node().Length) + 4 + 4 + 1);
     }
     else if (o is Erlang.Ref)
     {
         Erlang.Ref p   = o.refValue();
         int[]      ids = p.ids();
         return(1 + (1 + 2 + p.node().Length) + 1 + 4 * ids.Length);
     }
     else if (o is Erlang.Port)
     {
         Erlang.Port p = o.portValue();
         return(1 + (1 + 2 + p.node().Length) + 4 + 1);
     }
     else
     {
         throw new Erlang.Exception("Unknown encode size for object: " + o.ToString());
     }
 }
Example #4
0
        static public void Main(String[] args)
        {
            System.Console.Out.WriteLine("Otp test...");

            if (args.Length < 1)
            {
                System.Console.Out.WriteLine("Usage: Otp sname\n  where sname is" +
                                             "the short name of the Erlang node");
                return;
            }

            OtpNode.useShortNames = true;

            String  host   = System.Net.Dns.GetHostName();
            String  user   = Environment.UserName;
            OtpNode node   = new OtpNode(user + "@" + host);
            String  remote = (args[0].Contains("@")) ? args[0] : remote = args[0] + "@" + host;
            OtpMbox mbox   = null;

            System.Console.Out.WriteLine("This node is: {0} (cookie='{1}'). Remote: {2}",
                                         node.node(), node.cookie(), remote);

            //bool ok = node.ping(remote, 1000*300);

            OtpCookedConnection conn = node.getConnection(remote);

            try
            {
                if (conn != null)
                {
                    System.Console.Out.WriteLine("   successfully pinged node " + remote + "\n");
                }
                else
                {
                    throw new System.Exception("Could not ping node: " + remote);
                }

                conn.traceLevel = 1;

                mbox = node.createMbox();
                mbox.registerName("server");

                mbox.sendRPC(conn.peer.node(), "lists", "reverse", new Erlang.List(new Erlang.String("Hello world!")));
                Erlang.Object reply = mbox.receiveRPC(5000);
                System.Console.Out.WriteLine("<= " + reply.ToString());

                {
                    Erlang.List rpcArgs = new Erlang.List(
                        new Erlang.Object[] {
                        mbox.self(),
                        new Erlang.Tuple(
                            new Erlang.Object[] {
                            new Erlang.Atom("table"), new Erlang.Atom("test"), new Erlang.Atom("simple")
                        }
                            )
                    }
                        );

                    mbox.sendRPC(conn.peer.node(), "mnesia_subscr", "subscribe", rpcArgs);
                    reply = mbox.receiveRPC(5000);
                    System.Console.Out.WriteLine("<= " + reply.ToString());
                }

                while (true)
                {
                    Erlang.Object msg = mbox.receive();
                    System.Console.Out.WriteLine("IN msg: " + msg.ToString() + "\n");
                }
            }
            catch (System.Exception e)
            {
                System.Console.Out.WriteLine("Error: " + e.ToString());
            }
            finally
            {
                node.closeMbox(mbox);
            }

            node.close();
        }
Example #5
0
        static public void Main(String[] args)
        {
            OtpTrace.TraceEvent("Otp test...");

            if (args.Length < 1)
            {
                OtpTrace.TraceEvent("Usage: Otp sname\n  where sname is" +
                                    "the short name of the Erlang node");
                return;
            }

            String host   = System.Net.Dns.GetHostName();
            String remote = args[0] + "@" + host;

            OtpNode node = new OtpNode("q@" + host);

            OtpTrace.TraceEvent("This node is called {0} and is using cookie='{1}'.",
                                node.node(), node.cookie());
            bool ok = false;

            ok = node.ping(remote, 1000);
            if (ok)
            {
                OtpTrace.TraceEvent("   successfully pinged node " + remote + "\n");
            }
            else
            {
                OtpTrace.TraceEvent("   could not ping node " + remote + "\n");
            }

            OtpMbox mbox = null;

            try
            {
                mbox = node.createMbox();

                Erlang.Object[] rpc  = new Erlang.Object[2];
                Erlang.Object[] call = new Erlang.Object[5];

                call[0] = new Erlang.Atom("call");
                call[1] = new Erlang.Atom("lists");
                call[2] = new Erlang.Atom("reverse");
                call[3] = new Erlang.List(new Erlang.List("Hello Erlang world!"));
                call[4] = mbox.self();

                rpc[0] = mbox.self();
                rpc[1] = new Erlang.Tuple(call);

                Erlang.Tuple rpcTuple = new Erlang.Tuple(rpc);
                OtpTrace.TraceEvent("=> " + rpcTuple.ToString());

                mbox.send("rex", remote, rpcTuple);
                Erlang.Object reply = mbox.receive(1000);

                OtpTrace.TraceEvent("<= " + reply.ToString());
            }
            catch (System.Exception)
            {
            }
            finally
            {
                node.closeMbox(mbox);
            }

            node.close();
        }