private void r4_publish(TcpClient s, OtpInputStream ibuf)
{
try
{
int port = ibuf.read2BE();
int type = ibuf.read1();
int proto = ibuf.read1();
int distHigh = ibuf.read2BE();
int distLow = ibuf.read2BE();
int len = ibuf.read2BE();
byte[] alive = new byte[len];
ibuf.readN(alive);
int elen = ibuf.read2BE();
byte[] extra = new byte[elen];
ibuf.readN(extra);
String name = OtpErlangString.newString(alive);
OtpPublishedNode node = new OtpPublishedNode(name);
node.Type = type;
node.DistHigh = distHigh;
node.DistLow = distLow;
node.Proto = proto;
node.Port = port;
if (traceLevel >= traceThreshold)
{
log.Debug("<- PUBLISH (r4) " + name + " port=" + node.Port);
}
OtpOutputStream obuf = new OtpOutputStream();
obuf.write1(publish4resp);
obuf.write1(0);
obuf.write2BE(epmd.Creation);
obuf.WriteTo(s.GetStream());
lock (portmap)
{
portmap.Add(name, node);
}
publishedPort.Add(name);
}
catch (IOException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Request not responding");
}
return;
}
/**
* Convert this bitstr to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded bitstr should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
buf.write_bitstr(bin, pad_bits);
}
public override void encode(OtpOutputStream buf)
{
buf.write_fun(pid, module, old_index, arity, md5, index, uniq,
freeVars);
}
private void sendExit(int tag, OtpErlangPid from, OtpErlangPid dest, OtpErlangObject reason)
{
if (!connected)
{
throw new IOException("Not connected");
}
OtpOutputStream header = new OtpOutputStream(headerLen);
// preamble: 4 byte length + "passthrough" tag
header.write4BE(0); // reserve space for length
header.write1(passThrough);
header.write1(version);
// header
header.write_tuple_head(4);
header.write_long(tag);
header.write_any(from);
header.write_any(dest);
header.write_any(reason);
// fix up length in preamble
header.poke4BE(0, header.size() - 4);
do_send(header);
}
// used by the other message types
protected void do_send(OtpOutputStream header)
{
lock (this)
{
try
{
if (traceLevel >= ctrlThreshold)
{
try
{
OtpErlangObject h = header.getOtpInputStream(5).read_any();
log.Debug("-> " + headerType(h) + " " + h);
}
catch (OtpErlangDecodeException e)
{
log.Debug(" " + "can't decode output buffer: " + e);
}
}
header.WriteTo(socket.GetOutputStream());
}
catch (IOException e)
{
close();
throw e;
}
}
}
protected void sendChallengeReply(int challenge, byte[] digest)
{
OtpOutputStream obuf = new OtpOutputStream();
obuf.write2BE(21);
obuf.write1(ChallengeReply);
obuf.write4BE(challenge);
obuf.write(digest);
obuf.WriteTo(socket.GetOutputStream());
if (traceLevel >= handshakeThreshold)
{
log.Debug("-> " + "HANDSHAKE sendChallengeReply"
+ " challenge=" + challenge + " digest=" + hex(digest)
+ " local=" + self);
}
}
protected void sendStatus(String status)
{
OtpOutputStream obuf = new OtpOutputStream();
obuf.write2BE(status.Length + 1);
obuf.write1(ChallengeStatus);
obuf.write(Encoding.GetEncoding("iso-8859-1").GetBytes(status));
obuf.WriteTo(socket.GetOutputStream());
if (traceLevel >= handshakeThreshold)
{
log.Debug("-> " + "HANDSHAKE sendStatus" + " status="
+ status + " local=" + self);
}
}
private static int r4_lookupPort(AbstractNode node)
{
int port = 0;
try
{
OtpOutputStream obuf = new OtpOutputStream();
using (TcpClient s = new TcpClient(node.Host, EpmdPort.get()))
{
// build and send epmd request
// length[2], tag[1], alivename[n] (length = n+1)
obuf.write2BE(node.Alive.Length + 1);
obuf.write1(port4req);
obuf.writeN(Encoding.GetEncoding("iso-8859-1").GetBytes(node.Alive));
// send request
obuf.WriteTo(s.GetStream());
if (traceLevel >= traceThreshold)
{
log.Debug("-> LOOKUP (r4) " + node);
}
// receive and decode reply
// resptag[1], result[1], port[2], ntype[1], proto[1],
// disthigh[2], distlow[2], nlen[2], alivename[n],
// elen[2], edata[m]
byte[] tmpbuf = new byte[100];
int n = s.GetStream().Read(tmpbuf, 0, tmpbuf.Length);
if (n < 0)
{
// this was an r3 node => not a failure (yet)
throw new IOException("Nameserver not responding on "
+ node.Host + " when looking up " + node.Alive);
}
OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
int response = ibuf.read1();
if (response == port4resp)
{
int result = ibuf.read1();
if (result == 0)
{
port = ibuf.read2BE();
node.Type = ibuf.read1();
node.Proto = ibuf.read1();
node.DistHigh = ibuf.read2BE();
node.DistLow = ibuf.read2BE();
// ignore rest of fields
}
}
}
}
catch (SocketException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host);
}
catch (IOException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when looking up " + node.Alive);
}
catch (OtpErlangDecodeException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (invalid response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when looking up " + node.Alive);
}
if (traceLevel >= traceThreshold)
{
if (port == 0)
{
log.Debug("<- NOT FOUND");
}
else
{
log.Debug("<- PORT " + port);
}
}
return port;
}
/*
* this function will get an exception if it tries to talk to an r3 epmd, or
* if something else happens that it cannot forsee. In both cases we return
* an exception (and the caller should try again, using the r3 protocol). If
* we manage to successfully communicate with an r4 epmd, we return either
* the socket, or null, depending on the result.
*/
private static TcpClient r4_publish(OtpLocalNode node)
{
TcpClient s = null;
try
{
OtpOutputStream obuf = new OtpOutputStream();
s = new TcpClient(node.Host, EpmdPort.get());
obuf.write2BE(node.Alive.Length + 13);
obuf.write1(publish4req);
obuf.write2BE(node.Port);
obuf.write1(node.Type);
obuf.write1(node.Proto);
obuf.write2BE(node.DistHigh);
obuf.write2BE(node.DistLow);
obuf.write2BE(node.Alive.Length);
obuf.writeN(Encoding.GetEncoding("iso-8859-1").GetBytes(node.Alive));
obuf.write2BE(0); // No extra
// send request
obuf.WriteTo(s.GetStream());
if (traceLevel >= traceThreshold)
{
log.Debug("-> PUBLISH (r4) " + node + " port=" + node.Port);
}
// get reply
byte[] tmpbuf = new byte[100];
int n = s.GetStream().Read(tmpbuf, 0, tmpbuf.Length);
if (n < 0)
{
// this was an r3 node => not a failure (yet)
if (s != null)
{
s.Close();
}
throw new IOException("Nameserver not responding on "
+ node.Host + " when publishing " + node.Alive);
}
OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
int response = ibuf.read1();
if (response == publish4resp)
{
int result = ibuf.read1();
if (result == 0)
{
node.Creation = ibuf.read2BE();
if (traceLevel >= traceThreshold)
{
log.Debug("<- OK");
}
return s; // success
}
}
}
catch (SocketException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host);
}
catch (IOException)
{
// epmd closed the connection = fail
if (s != null)
{
s.Close();
}
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when publishing " + node.Alive);
}
catch (OtpErlangDecodeException)
{
if (s != null)
{
s.Close();
}
if (traceLevel >= traceThreshold)
{
log.Debug("<- (invalid response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when publishing " + node.Alive);
}
if (s != null)
{
s.Close();
}
return null;
}
private static int r3_lookupPort(AbstractNode node)
{
int port = 0;
try
{
OtpOutputStream obuf = new OtpOutputStream();
using (TcpClient s = new TcpClient(node.Host, EpmdPort.get()))
{
// build and send epmd request
// length[2], tag[1], alivename[n] (length = n+1)
obuf.write2BE(node.Alive.Length + 1);
obuf.write1(port3req);
obuf.writeN(Encoding.GetEncoding("iso-8859-1").GetBytes(node.Alive));
// send request
obuf.WriteTo(s.GetStream());
if (traceLevel >= traceThreshold)
{
log.Debug("-> LOOKUP (r3) " + node);
}
// receive and decode reply
byte[] tmpbuf = new byte[100];
s.GetStream().Read(tmpbuf, 0, tmpbuf.Length);
OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
port = ibuf.read2BE();
}
}
catch (SocketException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host);
}
catch (IOException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when looking up " + node.Alive);
}
catch (OtpErlangDecodeException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (invalid response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when looking up " + node.Alive);
}
if (traceLevel >= traceThreshold)
{
if (port == 0)
{
log.Debug("<- NOT FOUND");
}
else
{
log.Debug("<- PORT " + port);
}
}
return port;
}
private static TcpClient r3_publish(OtpLocalNode node)
{
TcpClient s;
try
{
OtpOutputStream obuf = new OtpOutputStream();
s = new TcpClient(node.Host, EpmdPort.get());
obuf.write2BE(node.Alive.Length + 3);
obuf.write1(publish3req);
obuf.write2BE(node.Port);
obuf.writeN(Encoding.GetEncoding("iso-8859-1").GetBytes(node.Alive));
// send request
obuf.WriteTo(s.GetStream());
if (traceLevel >= traceThreshold)
{
log.Debug("-> PUBLISH (r3) " + node + " port=" + node.Port);
}
byte[] tmpbuf = new byte[100];
int n = s.GetStream().Read(tmpbuf, 0, tmpbuf.Length);
if (n < 0)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
return null;
}
OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
if (ibuf.read1() == publish3ok)
{
node.Creation = ibuf.read2BE();
if (traceLevel >= traceThreshold)
{
log.Debug("<- OK");
}
return s; // success - don't close socket
}
}
catch (SocketException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host);
}
catch (IOException)
{
// epmd closed the connection = fail
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when publishing " + node.Alive);
}
catch (OtpErlangDecodeException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (invalid response)");
}
throw new IOException("Nameserver not responding on " + node.Host
+ " when publishing " + node.Alive);
}
return null; // failure
}
// Ask epmd to close his end of the connection.
// Caller should close his epmd socket as well.
// This method is pretty forgiving...
/**
* Unregister from Epmd. Other nodes wishing to connect will no longer be
* able to.
*
* <p>
* This method does not report any failures.
*/
public static void unPublishPort(OtpLocalNode node)
{
try
{
using (TcpClient s = new TcpClient(Dns.GetHostName(), EpmdPort.get()))
{
OtpOutputStream obuf = new OtpOutputStream();
obuf.write2BE(node.Alive.Length + 1);
obuf.write1(stopReq);
obuf.writeN(Encoding.GetEncoding("iso-8859-1").GetBytes(node.Alive));
obuf.WriteTo(s.GetStream());
// don't even wait for a response (is there one?)
if (traceLevel >= traceThreshold)
{
log.Debug("-> UNPUBLISH " + node + " port=" + node.Port);
log.Debug("<- OK (assumed)");
}
}
}
catch (Exception) /* ignore all failures */
{
}
}
public static String[] lookupNames(IPAddress address)
{
try
{
OtpOutputStream obuf = new OtpOutputStream();
using (TcpClient s = new TcpClient(address.ToString(), EpmdPort.get()))
{
obuf.write2BE(1);
obuf.write1(names4req);
// send request
obuf.WriteTo(s.GetStream());
if (traceLevel >= traceThreshold)
{
log.Debug("-> NAMES (r4) ");
}
// get reply
byte[] buffer = new byte[256];
MemoryStream ms = new MemoryStream(256);
while (true)
{
int bytesRead = s.GetStream().Read(buffer, 0, buffer.Length);
if (bytesRead == -1)
{
break;
}
ms.Write(buffer, 0, bytesRead);
}
byte[] tmpbuf = ms.GetBuffer();
OtpInputStream ibuf = new OtpInputStream(tmpbuf, 0);
ibuf.read4BE(); // read port int
// int port = ibuf.read4BE();
// check if port = epmdPort
int n = tmpbuf.Length;
byte[] buf = new byte[n - 4];
Array.Copy(tmpbuf, 4, buf, 0, n - 4);
String all = OtpErlangString.newString(buf);
return all.Split(new char[] { '\n' });
}
}
catch (SocketException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding on " + address);
}
catch (IOException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Nameserver not responding when requesting names");
}
catch (OtpErlangDecodeException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (invalid response)");
}
throw new IOException("Nameserver not responding when requesting names");
}
}
/// <summary>
/// Executes a MFA over TCP stream and synchronously retrieves the data
/// </summary>
/// <param name="stream">TCP stream</param>
/// <param name="module">Erlang Module atom</param>
/// <param name="function">Erlang function atom</param>
/// <param name="args">Function arguments (maybe empty/null)</param>
/// <returns></returns>
public static OtpErlangObject CallMFASync(ErlStream stream,
string module, string function, OtpErlangObject[] args)
{
OtpErlangObject[] mfaArray = null;
OtpOutputStream eouts = new OtpOutputStream();
mfaArray = new OtpErlangObject[4];
// mod and fun and args as list
// ['mod', 'fun', arg1, arg2, ...]
mfaArray[0] = new OtpErlangAtom("c#ref");
mfaArray[1] = new OtpErlangAtom(module);
mfaArray[2] = new OtpErlangAtom(function);
if (null != args)
mfaArray[3] = new OtpErlangList(args);
else
mfaArray[3] = new OtpErlangList();
OtpErlangTuple mfaTouple = new OtpErlangTuple(mfaArray);
eouts = new OtpOutputStream();
mfaTouple.encode(eouts);
uint payloadLen = (uint)(eouts.Length + 1);
byte[] buf = new byte[eouts.Length + 5];
// added payload size (including protocol id byte)
// and the missing protocol id byte after it
buf[0] = (byte)((payloadLen & 0xFF000000) >> 24);
buf[1] = (byte)((payloadLen & 0x00FF0000) >> 16);
buf[2] = (byte)((payloadLen & 0x0000FF00) >> 8);
buf[3] = (byte)((payloadLen & 0x000000FF));
buf[4] = 131;
Array.Copy(eouts.GetBuffer(), 0, buf, 5, eouts.Length); // rest of the buffer copied
stream.Write(buf, 0, buf.Length);
// wait for data
DateTime startToWaitForData = DateTime.Now;
while (!stream.DataAvailable)
{
if ((DateTime.Now - startToWaitForData).Seconds > Properties.Settings.Default.StreamResponseTimeout)
throw new ErlnetException("Response timeout in call to " + module + ":" + function);
else
Thread.Sleep(0);
}
// read till empty
int readCount = 0;
payloadLen = 0;
// read payload length (4 byte header)
byte[] payloadbuf = new byte[4];
do {
readCount += stream.Read(payloadbuf, readCount, payloadbuf.Length - readCount);
if (readCount != 4)
continue;
else
payloadLen = ((uint)payloadbuf[3] & 0x000000FF)
+ (((uint)payloadbuf[2] << 8) & 0x0000FF00)
+ (((uint)payloadbuf[1] << 16) & 0x00FF0000)
+ (((uint)payloadbuf[0] << 24) & 0xFF000000);
break;
} while(true);
//Console.WriteLine("RX " + payloadLen + " bytes");
// read the payload of length 'payloadLen'
readCount = 0;
buf = new byte[payloadLen];
MemoryStream resp = new MemoryStream();
do
{
readCount += stream.Read(buf, readCount, buf.Length - readCount);
if (readCount != payloadLen)
continue;
else
break;
} while (true);
// rebuild term
resp.Write(buf, 0, buf.Length);
OtpErlangTuple res = (OtpErlangTuple)OtpErlangObject.decode(new OtpInputStream(resp.GetBuffer()));
//Console.WriteLine("RX " + res.elementAt(0).ToString());
return res.elementAt(1);
}
/**
* Send a pre-encoded message to a process on a remote node.
*
* @param dest
* the Erlang PID of the remote process.
* @param msg
* the encoded message to send.
*
* @exception java.io.IOException
* if the connection is not active or a communication error
* occurs.
*/
protected void sendBuf(OtpErlangPid from, OtpErlangPid dest, OtpOutputStream payload)
{
if (!connected)
{
throw new IOException("Not connected");
}
OtpOutputStream header = new OtpOutputStream(headerLen);
// preamble: 4 byte length + "passthrough" tag + version
header.write4BE(0); // reserve space for length
header.write1(passThrough);
header.write1(version);
// header info
header.write_tuple_head(3);
header.write_long(sendTag);
if (sendCookie)
{
header.write_atom(self.Cookie);
}
else
{
header.write_atom("");
}
header.write_any(dest);
// version for payload
header.write1(version);
// fix up length in preamble
header.poke4BE(0, header.size() + payload.size() - 4);
do_send(header, payload);
}
/**
* Write an arbitrary Erlang term to the stream in compressed format.
*
* @param o
* the Erlang tem to write.
*/
public void write_compressed(OtpErlangObject o)
{
OtpOutputStream oos = new OtpOutputStream(o);
write1(OtpExternal.compressedTag);
write4BE(oos.Length);
DeflateStream dos = new DeflateStream(this, CompressionMode.Compress, true);
try
{
oos.WriteTo(dos);
dos.Close();
}
catch (ObjectDisposedException)
{
throw new ArgumentException("Intremediate stream failed for Erlang object " + o);
}
}
protected void sendChallengeAck(byte[] digest)
{
OtpOutputStream obuf = new OtpOutputStream();
obuf.write2BE(17);
obuf.write1(ChallengeAck);
obuf.write(digest);
obuf.WriteTo(socket.GetOutputStream());
if (traceLevel >= handshakeThreshold)
{
log.Debug("-> " + "HANDSHAKE sendChallengeAck"
+ " digest=" + hex(digest) + " local=" + self);
}
}
/**
* Convert this binary to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded binary should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
buf.write_binary(bin);
}
protected void sendName(int dist, int flags)
{
OtpOutputStream obuf = new OtpOutputStream();
String str = self.Node;
obuf.write2BE(str.Length + 7); // 7 bytes + nodename
obuf.write1(AbstractNode.NTYPE_R6);
obuf.write2BE(dist);
obuf.write4BE(flags);
obuf.write(Encoding.GetEncoding("iso-8859-1").GetBytes(str));
obuf.WriteTo(socket.GetOutputStream());
if (traceLevel >= handshakeThreshold)
{
log.Debug("-> " + "HANDSHAKE sendName" + " flags=" + flags
+ " dist=" + dist + " local=" + self);
}
}
/**
* Convert this port to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded port should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
buf.write_port(node, id, creation);
}
/*
* Send an auth error to peer because he sent a bad cookie. The auth error
* uses his cookie (not revealing ours). This is just like send_reg
* otherwise
*/
private void cookieError(OtpLocalNode local, OtpErlangAtom cookie)
{
try
{
OtpOutputStream header = new OtpOutputStream(headerLen);
// preamble: 4 byte length + "passthrough" tag + version
header.write4BE(0); // reserve space for length
header.write1(passThrough);
header.write1(version);
header.write_tuple_head(4);
header.write_long(regSendTag);
header.write_any(local.createPid()); // disposable pid
header.write_atom(cookie.atomValue()); // important: his cookie,
// not mine...
header.write_atom("auth");
// version for payload
header.write1(version);
// the payload
// the no_auth message (copied from Erlang) Don't change this
// (Erlang will crash)
// {$gen_cast, {print, "~n** Unauthorized cookie ~w **~n",
// [foo@aule]}}
OtpErlangObject[] msg = new OtpErlangObject[2];
OtpErlangObject[] msgbody = new OtpErlangObject[3];
msgbody[0] = new OtpErlangAtom("print");
msgbody[1] = new OtpErlangString("~n** Bad cookie sent to " + local + " **~n");
// Erlang will crash and burn if there is no third argument here...
msgbody[2] = new OtpErlangList(); // empty list
msg[0] = new OtpErlangAtom("$gen_cast");
msg[1] = new OtpErlangTuple(msgbody);
OtpOutputStream payload = new OtpOutputStream(new OtpErlangTuple(msg));
// fix up length in preamble
header.poke4BE(0, header.size() + payload.size() - 4);
try
{
do_send(header, payload);
}
catch (IOException)
{
} // ignore
}
finally
{
close();
}
throw new OtpAuthException("Remote cookie not authorized: " + cookie.atomValue());
}
/**
* Convert this PID to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded PID should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
buf.write_pid(node, id, serial, creation);
}
// used by send and send_reg (message types with payload)
protected void do_send(OtpOutputStream header, OtpOutputStream payload)
{
lock (this)
{
try
{
if (traceLevel >= sendThreshold)
{
// Need to decode header and output buffer to show trace
// message!
// First make OtpInputStream, then decode.
try
{
OtpErlangObject h = header.getOtpInputStream(5).read_any();
log.Debug("-> " + headerType(h) + " " + h);
OtpErlangObject o = payload.getOtpInputStream(0).read_any();
log.Debug(" " + o);
o = null;
}
catch (OtpErlangDecodeException e)
{
log.Debug(" " + "can't decode output buffer:" + e);
}
}
header.WriteTo(socket.GetOutputStream());
payload.WriteTo(socket.GetOutputStream());
}
catch (IOException e)
{
close();
throw e;
}
}
}
/**
* Send a pre-encoded message to a named process on a remote node.
*
* @param dest
* the name of the remote process.
* @param payload
* the encoded message to send.
*
* @exception java.io.IOException
* if the connection is not active or a communication
* error occurs.
*/
public void sendBuf(String dest, OtpOutputStream payload)
{
base.sendBuf(self.Pid, dest, payload);
}
/**
* Convert this string to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded string should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
buf.write_string(str);
}
/**
* Send a pre-encoded message to a process on a remote node.
*
* @param dest
* the Erlang PID of the remote process.
* @param msg
* the encoded message to send.
*
* @exception java.io.IOException
* if the connection is not active or a communication
* error occurs.
*/
public void sendBuf(OtpErlangPid dest, OtpOutputStream payload)
{
base.sendBuf(self.Pid, dest, payload);
}
/**
* Convert this tuple to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded tuple should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
int arity = elems.Length;
buf.write_tuple_head(arity);
for (int i = 0; i < arity; i++)
{
buf.write_any(elems[i]);
}
}
/**
* Convert this number to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded number should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
if (!BigIntegerIsNull(bigVal))
{
buf.write_big_integer(bigVal);
}
else
{
buf.write_long(val);
}
}
/**
* Convert this atom to the equivalent Erlang external representation.
*
* @param buf
* an output stream to which the encoded atom should be
* written.
*/
public override void encode(OtpOutputStream buf)
{
buf.write_atom(atom);
}
private void r4_port(TcpClient s, OtpInputStream ibuf)
{
try
{
int len = (int)(ibuf.Length - 1);
byte[] alive = new byte[len];
ibuf.readN(alive);
String name = OtpErlangString.newString(alive);
OtpPublishedNode node = null;
if (traceLevel >= traceThreshold)
{
log.Debug("<- PORT (r4) " + name);
}
lock (portmap)
{
if (portmap.ContainsKey(name))
{
node = portmap[name];
}
}
OtpOutputStream obuf = new OtpOutputStream();
if (node != null)
{
obuf.write1(port4resp);
obuf.write1(0);
obuf.write2BE(node.Port);
obuf.write1(node.Type);
obuf.write1(node.Proto);
obuf.write2BE(node.DistHigh);
obuf.write2BE(node.DistLow);
obuf.write2BE(len);
obuf.writeN(alive);
obuf.write2BE(0);
}
else
{
obuf.write1(port4resp);
obuf.write1(1);
}
obuf.WriteTo(s.GetStream());
}
catch (IOException)
{
if (traceLevel >= traceThreshold)
{
log.Debug("<- (no response)");
}
throw new IOException("Request not responding");
}
return;
}
