protected override void XReadActivated(Pipe pipe)
{
// There are some subscriptions waiting. Let's process them.
Msg sub;
while ((sub = pipe.Read()) != null)
{
// Apply the subscription to the trie.
byte[] data = sub.Data;
int size = sub.Size;
if (size > 0 && (data[0] == 0 || data[0] == 1))
{
bool unique;
if (data[0] == 0)
{
unique = m_subscriptions.Remove(data, 1, pipe);
}
else
{
unique = m_subscriptions.Add(data, 1, pipe);
}
// If the subscription is not a duplicate, store it so that it can be
// passed to used on next recv call.
if (m_options.SocketType == ZmqSocketType.Xpub && (unique || m_verbose))
{
m_pending.Enqueue(new Blob(sub.Data));
}
}
}
}
protected bool XRecv(SendReceiveOptions flags, out Msg msg)
{
// Deallocate old content of the message.
msg = null;
if (m_pipe == null || (msg = m_pipe.Read()) == null)
{
return(false);
}
return(true);
}
override protected bool XRecv(SendReceiveOptions flags, ref Msg msg)
{
// Deallocate old content of the message.
msg.Close();
if (m_pipe == null || !m_pipe.Read(ref msg))
{
msg.InitEmpty();
return(false);
}
return(true);
}
private bool IdentifyPeer(Pipe pipe)
{
Blob identity;
if (m_options.RawSocket)
{
byte[] buf = new byte[5];
buf[0] = 0;
byte[] result = BitConverter.GetBytes(m_nextPeerId++);
Buffer.BlockCopy(result, 0, buf, 1, 4);
identity = new Blob(buf);
}
else
{
Msg msg = pipe.Read();
if (msg == null)
{
return(false);
}
if (msg.Size == 0)
{
// Fall back on the auto-generation
byte[] buf = new byte[5];
buf[0] = 0;
byte[] result = BitConverter.GetBytes(m_nextPeerId++);
Buffer.BlockCopy(result, 0, buf, 1, 4);
identity = new Blob(buf);
}
else
{
identity = new Blob(msg.Data);
// Ignore peers with duplicate ID.
if (m_outpipes.ContainsKey(identity))
{
return(false);
}
}
}
pipe.Identity = identity;
// Add the record into output pipes lookup table
Outpipe outpipe = new Outpipe(pipe, true);
m_outpipes.Add(identity, outpipe);
return(true);
}
public virtual bool PullMsg(ref Msg msg)
{
// First message to send is identity
if (!m_identitySent)
{
msg.InitPool(m_options.IdentitySize);
msg.Put(m_options.Identity, 0, m_options.IdentitySize);
m_identitySent = true;
m_incompleteIn = false;
return(true);
}
if (m_pipe == null || !m_pipe.Read(ref msg))
{
return(false);
}
m_incompleteIn = msg.HasMore;
return(true);
}
public virtual Msg PullMsg()
{
Msg msg;
// First message to send is identity
if (!m_identitySent)
{
msg = new Msg(m_options.IdentitySize);
msg.Put(m_options.Identity, 0, m_options.IdentitySize);
m_identitySent = true;
m_incompleteIn = false;
return(msg);
}
if (m_pipe == null || (msg = m_pipe.Read()) == null)
{
return(null);
}
m_incompleteIn = msg.HasMore;
return(msg);
}
protected override void XReadActivated(Pipe pipe)
{
// There are some subscriptions waiting. Let's process them.
Msg sub;
while ((sub = pipe.Read()) != null)
{
// Apply the subscription to the trie.
byte[] data = sub.Data;
int size = sub.Size;
if (size > 0 && (data[0] == 0 || data[0] == 1))
{
bool unique;
if (data[0] == 0)
unique = m_subscriptions.Remove(data, 1, pipe);
else
unique = m_subscriptions.Add(data, 1, pipe);
// If the subscription is not a duplicate, store it so that it can be
// passed to used on next recv call.
if (m_options.SocketType == ZmqSocketType.Xpub && (unique || m_verbose))
m_pending.Enqueue(new Blob(sub.Data));
}
}
}
private bool IdentifyPeer(Pipe pipe)
{
Blob identity;
if (m_options.RawSocket)
{
byte[] buf = new byte[5];
buf[0] = 0;
byte[] result = BitConverter.GetBytes(m_nextPeerId++);
Buffer.BlockCopy(result, 0, buf, 1, 4);
identity = new Blob(buf);
}
else
{
Msg msg = pipe.Read();
if (msg == null)
return false;
if (msg.Size == 0)
{
// Fall back on the auto-generation
byte[] buf = new byte[5];
buf[0] = 0;
byte[] result = BitConverter.GetBytes(m_nextPeerId++);
Buffer.BlockCopy(result, 0, buf, 1, 4);
identity = new Blob(buf);
}
else
{
identity = new Blob(msg.Data);
// Ignore peers with duplicate ID.
if (m_outpipes.ContainsKey(identity))
return false;
}
}
pipe.Identity = identity;
// Add the record into output pipes lookup table
Outpipe outpipe = new Outpipe(pipe, true);
m_outpipes.Add(identity, outpipe);
return true;
}
private bool IdentifyPeer(Pipe pipe)
{
Blob identity;
if (m_options.RawSocket)
{
// Always assign identity for raw-socket
byte[] buf = new byte[5];
buf[0] = 0;
byte[] result = BitConverter.GetBytes(m_nextPeerId++);
Buffer.BlockCopy(result, 0, buf, 1, 4);
identity = new Blob(buf, buf.Length);
}
else
{
// Pick up handshake cases and also case where next identity is set
Msg msg = new Msg();
msg.InitEmpty();
bool ok = pipe.Read(ref msg);
if (!ok)
{
return(false);
}
if (msg.Size == 0)
{
// Fall back on the auto-generation
byte[] buf = new byte[5];
buf[0] = 0;
byte[] result = BitConverter.GetBytes(m_nextPeerId++);
Buffer.BlockCopy(result, 0, buf, 1, 4);
identity = new Blob(buf, buf.Length);
msg.Close();
}
else
{
identity = new Blob(msg.Data, msg.Size);
// Ignore peers with duplicate ID.
if (m_outpipes.ContainsKey(identity))
{
msg.Close();
return(false);
}
msg.Close();
}
}
pipe.Identity = identity;
// Add the record into output pipes lookup table
Outpipe outpipe = new Outpipe(pipe, true);
m_outpipes.Add(identity, outpipe);
return(true);
}
