public static void SendMessage(this IOutgoingSocket socket, KernelContext context, Message message)
{
// FIXME: need to handle parents for messages which are handled
// sequentially.
// Conceptually, sending a message consists of three steps:
// • Convert the message to four frames.
// • Digest the four frames.
// • Send the identities, the delimeter, the digest, and the
// message frames.
var zmqMessage = new NetMQMessage();
var frames = new[]
{
message.Header,
message.ParentHeader,
message.Metadata,
message.Content
}
.Select(frame => JsonConvert.SerializeObject(frame))
.Select(str => Encoding.UTF8.GetBytes(str))
.ToList();
var digest = context.NewHmac().ComputeHash(frames.ToArray());
message.ZmqIdentities?.ForEach(ident => zmqMessage.Append(ident));
zmqMessage.Append("<IDS|MSG>");
zmqMessage.Append(BitConverter.ToString(digest).Replace("-", "").ToLowerInvariant());
frames.ForEach(ident => zmqMessage.Append(ident));
socket.SendMultipartMessage(zmqMessage);
}
public static void Send(this IOutgoingSocket socket, RawMessage message)
{
NetMQMessage mqMessage = new NetMQMessage();
mqMessage.Append(message.Topic);
mqMessage.Append(message.Header);
mqMessage.Append(message.Body, Encoding.UTF8);
socket.SendMultipartMessage(mqMessage);
}
public void Send(NodeReply msg, IOutgoingSocket outgoingSocket)
{
var mqMsg = Marshall(msg);
outgoingSocket.SendMultipartMessage(mqMsg);
}
public void Send(RoutableMessage msg, IOutgoingSocket outgoingSocket)
{
var mqMsg = Marshall(msg);
outgoingSocket.SendMultipartMessage(mqMsg);
}
public void Send(PointToPointMessage msg, IOutgoingSocket forwardingSocket)
{
var mqMsg = Marshall(msg);
forwardingSocket.SendMultipartMessage(mqMsg);
}
public void Send(Message msg, IOutgoingSocket actorSocket)
{
var mqMsg = Marshall(msg);
actorSocket.SendMultipartMessage(mqMsg);
}
/// <summary>
/// Send the ZreMsg to the socket.
/// </summary>
public void Send(IOutgoingSocket output)
{
if (output is RouterSocket)
{
output.SendMoreFrame(RoutingId);
}
int frameSize = 2 + 1; // Signature and message ID
switch (Id)
{
case MessageId.Hello:
frameSize += Hello.GetFrameSize();
break;
case MessageId.Whisper:
frameSize += Whisper.GetFrameSize();
break;
case MessageId.Shout:
frameSize += Shout.GetFrameSize();
break;
case MessageId.Join:
frameSize += Join.GetFrameSize();
break;
case MessageId.Leave:
frameSize += Leave.GetFrameSize();
break;
case MessageId.Ping:
frameSize += Ping.GetFrameSize();
break;
case MessageId.PingOk:
frameSize += PingOk.GetFrameSize();
break;
}
// Now serialize message into the buffer
Msg msg = new Msg();
msg.InitPool(frameSize);
try
{
m_offset = 0;
m_buffer = msg.Data;
// put signature
PutNumber2(0xAAA0 | 1);
// put message id
PutNumber1((byte)Id);
switch (Id)
{
case MessageId.Hello:
Hello.Write(this);
break;
case MessageId.Whisper:
Whisper.Write(this);
break;
case MessageId.Shout:
Shout.Write(this);
break;
case MessageId.Join:
Join.Write(this);
break;
case MessageId.Leave:
Leave.Write(this);
break;
case MessageId.Ping:
Ping.Write(this);
break;
case MessageId.PingOk:
PingOk.Write(this);
break;
}
// Send the data frame
var more = Id == MessageId.Whisper || Id == MessageId.Shout;
output.Send(ref msg, more);
// Send message content for types with content
switch (Id)
{
case MessageId.Whisper:
if (Whisper.Content == null)
{
Whisper.Content = new NetMQMessage();
Whisper.Content.PushEmptyFrame();
}
output.SendMultipartMessage(Whisper.Content);
break;
case MessageId.Shout:
if (Shout.Content == null)
{
Shout.Content = new NetMQMessage();
Shout.Content.PushEmptyFrame();
}
output.SendMultipartMessage(Shout.Content);
break;
}
}
finally
{
m_buffer = null;
msg.Close();
}
}
