/// <summary>
/// Receive a ZreMsgOriginal from the socket.
/// </summary>
public void Receive(IReceivingSocket input)
{
bool more;
if (input is RouterSocket)
{
Msg routingIdMsg = new Msg();
routingIdMsg.InitEmpty();
try
{
input.Receive(ref routingIdMsg);
if (!routingIdMsg.HasMore)
{
throw new MessageException("No routing id");
}
if (m_routingId == null || m_routingId.Length == routingIdMsg.Size)
{
m_routingId = new byte[routingIdMsg.Size];
}
Buffer.BlockCopy(routingIdMsg.Data, 0, m_routingId, 0, m_routingId.Length);
}
finally
{
routingIdMsg.Close();
}
}
else
{
RoutingId = null;
}
Msg msg = new Msg();
msg.InitEmpty();
try
{
input.Receive(ref msg);
m_offset = 0;
m_buffer = msg.Data;
more = msg.HasMore;
UInt16 signature = GetNumber2();
if (signature != (0xAAA0 | 1))
{
throw new MessageException("Invalid signature");
}
// Get message id and parse per message type
Id = (MessageId)GetNumber1();
switch (Id)
{
case MessageId.Hello:
Hello.Read(this);
break;
case MessageId.Whisper:
Whisper.Read(this);
break;
case MessageId.Shout:
Shout.Read(this);
break;
case MessageId.Join:
Join.Read(this);
break;
case MessageId.Leave:
Leave.Read(this);
break;
case MessageId.Ping:
Ping.Read(this);
break;
case MessageId.PingOk:
PingOk.Read(this);
break;
default:
throw new MessageException("Bad message id");
}
}
finally
{
m_buffer = null;
msg.Close();
}
}
/// <summary>
/// Send the ZreMsg to the socket.
/// Warning re WHISPER and SHOUT: The 0MQ spec http://rfc.zeromq.org/spec:36
/// says "message content defined as one 0MQ frame. ZRE does not support multi-frame message contents."
/// </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.TrySend(ref msg, TimeSpan.Zero, 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.TrySendMultipartMessage(Whisper.Content);
break;
case MessageId.Shout:
if (Shout.Content == null)
{
Shout.Content = new NetMQMessage();
Shout.Content.PushEmptyFrame();
}
output.TrySendMultipartMessage(Shout.Content);
break;
}
}
finally
{
m_buffer = null;
msg.Close();
}
}
/// <summary>
/// Send the ZreMsgOriginal 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
output.Send(ref msg, false);
}
finally
{
m_buffer = null;
msg.Close();
}
}
/// <summary>
/// Receive a ZreMsg from the socket.
/// Message is ignored if the message signature doesn't start with %xAA %xA1 (returns false).
/// It appears "real" input will always be a RouterSocket, but DealerSocket is used during unit testing by zeromq/zyre and by this implementation.
/// </summary>
/// <param name="input">the socket</param>
/// <returns>true if successful</returns>
public bool Receive(IReceivingSocket input)
{
if (input is RouterSocket)
{
Msg routingIdMsg = new Msg();
routingIdMsg.InitEmpty();
try
{
input.Receive(ref routingIdMsg);
if (!routingIdMsg.HasMore)
{
throw new MessageException("No routing id");
}
if (_routingId == null || _routingId.Length == routingIdMsg.Size)
{
_routingId = new byte[routingIdMsg.Size];
}
Buffer.BlockCopy(routingIdMsg.Data, 0, _routingId, 0, _routingId.Length);
}
finally
{
routingIdMsg.Close();
}
}
else
{
RoutingId = null;
}
Msg msg = new Msg();
msg.InitEmpty();
try
{
input.Receive(ref msg);
_offset = 0;
_buffer = msg.Data;
UInt16 signature = GetNumber2();
if (signature != (0xAAA0 | 1))
{
// spec:36 A node SHALL silently discard any message received that does not start with these two octets.
return(false);
}
// Get message id and parse per message type
Id = (MessageId)GetNumber1();
switch (Id)
{
case MessageId.Hello:
Hello.Read(this);
break;
case MessageId.Whisper:
Whisper.Read(this);
break;
case MessageId.Shout:
Shout.Read(this);
break;
case MessageId.Join:
Join.Read(this);
break;
case MessageId.Leave:
Leave.Read(this);
break;
case MessageId.Ping:
Ping.Read(this);
break;
case MessageId.PingOk:
PingOk.Read(this);
break;
default:
throw new MessageException("Bad message id");
}
// Receive message content for types with content
switch (Id)
{
case MessageId.Whisper:
Whisper.Content = input.ReceiveMultipartMessage();
break;
case MessageId.Shout:
Shout.Content = input.ReceiveMultipartMessage();
break;
}
}
finally
{
_buffer = null;
msg.Close();
}
return(true);
}
