private async Task Names_R4(IOtpTransport socket)
{
try
{
if (traceLevel >= traceThreshold)
{
Logger.Debug("<- NAMES(r4) ");
}
OtpOutputStream obuf = new OtpOutputStream();
obuf.Write4BE(EpmdPort);
foreach (var node in portmap.Values)
{
byte[] bytes = Encoding.GetEncoding("ISO-8859-1").GetBytes($"name {node.Alive} at port {node.Port}\n");
obuf.WriteN(bytes);
Logger.Debug($"-> name {node.Alive} at port {node.Port}");
}
await obuf.WriteToAsync(socket.OutputStream);
}
catch (IOException e)
{
if (traceLevel >= traceThreshold)
{
Logger.Debug("<- (no response)");
}
throw new IOException("Request not responding", e);
}
}
private async Task Port_R4(IOtpTransport socket, OtpInputStream ibuf)
{
try
{
int len = (int)(ibuf.Length - 1);
byte[] alive = ibuf.ReadN(len);
string name = OtpErlangString.FromEncoding(alive);
if (traceLevel >= traceThreshold)
{
Logger.Debug($"<- PORT (r4) {name}");
}
if (!portmap.TryGetValue(name, out AbstractNode node))
{
node = null;
}
OtpOutputStream obuf = new OtpOutputStream();
if (node != null)
{
obuf.Write1(port4resp);
obuf.Write1(0);
obuf.Write2BE(node.Port);
obuf.Write1(node.Type);
obuf.Write1(node.Proto);
obuf.Write2BE(node.DistHigh);
obuf.Write2BE(node.DistLow);
obuf.Write2BE(len);
obuf.WriteN(alive);
obuf.Write2BE(0);
if (traceLevel >= traceThreshold)
{
Logger.Debug("-> 0 (success)");
}
}
else
{
obuf.Write1(port4resp);
obuf.Write1(1);
if (traceLevel >= traceThreshold)
{
Logger.Debug("-> 1 (failure)");
}
}
await obuf.WriteToAsync(socket.OutputStream);
}
catch (IOException e)
{
if (traceLevel >= traceThreshold)
{
Logger.Debug("<- (no response)");
}
throw new IOException("Request not responding", e);
}
}
private async Task <string> Publish_R4(IOtpTransport socket, OtpInputStream ibuf)
{
try
{
int port = ibuf.Read2BE();
int type = ibuf.Read1();
int proto = ibuf.Read1();
int distHigh = ibuf.Read2BE();
int distLow = ibuf.Read2BE();
string name = ibuf.ReadStringData();
ibuf.ReadStringData(); // extra
AbstractNode node = new AbstractNode()
{
Node = name,
Port = port,
Type = type,
DistHigh = distHigh,
DistLow = distLow,
Proto = proto
};
if (traceLevel >= traceThreshold)
{
Logger.Debug($"<- PUBLISH (r4) {name} port={node.Port}");
}
OtpOutputStream obuf = new OtpOutputStream();
obuf.Write1(ALIVE2_RESP);
obuf.Write1(0);
obuf.Write2BE(NextCreation());
await obuf.WriteToAsync(socket.OutputStream);
portmap.TryAdd(name, node);
return(name);
}
catch (IOException e)
{
if (traceLevel >= traceThreshold)
{
Logger.Debug("<- (no response)");
}
throw new IOException("Request not responding", e);
}
}
