[zeromq-dev] ZMQ_IDENTITY

[Jason Smith]

Hi Nishant,

>From my understanding this would result in messages being lost if it
were possible.

>From the zguide;

"Remember how ØMQ identities work. The server ROUTER socket sets an
identity before it binds its socket. When a client connects, they do a
little handshake to exchange identities, before either side sends a real
message. The client ROUTER socket, having not set an identity, sends a null
identity to the server. The server generates a random UUID to designate the
client, for its own use. The server sends its identity (which we've agreed
is going to be an endpoint string) to the client."

>From this I would gather that if either party was to change their identity
this "linkage" would be broken and any messages sent using this would be
missed. If this was done in a controlled way, i.e. the two endpoints
communicated on another connection that the identity would need to change.

Lastly I forget where I read this, however just remember their are
different rules for when you set identity yourself. In
certain circumstances it means the connection is long lived. Also I forget
whether its the context or the socket itself which needs to be brought down
to clean up this allocated memory. Others might be able to expand more.

Regards,
J



On 16 January 2013 04:49, Nishant Mittal <nmittal at rblt.com> wrote:

> ZMQ_IDENTITY
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