where to modify sockets code

[Asit Mishra]

Hi all
When communicating between two erlang nodes using the ! construct, the
underlying system takes care of where to send the message i.e. if two nodes
are on the same physical machine (say a@REDACTED and b@REDACTED), the system does
the address translation and sends message to the appropriate destination.
Similarly, when the nodes are on physically different machines (say a@REDACTED
b@REDACTED), the system again identifies the proper destination and sends it a
message. I am interested in figuring out where this code is and how it is
implemented. Is this implementation in C or Erlang?

I am interested in hacking this piece of code and re-route packets i.e. even
if the user specifies a remote destination (to nodeB) I want to route the
message packet to a local erlang node (to nodeA) on the same machines --
just a research project of mine at Intel here to leverage multicores. The
reason I dont want to do this in erlang is that I want the same piece of
code to run transparently on both the unmodified and modified Erlang VM. I
know there is a load-balancer in Erlang library but I dont want to use it as
well.

Any other suggestions on how I should proceed is appreciated? Can someone
tell me where to hack the address translation code? How is message passing
actually implemented in a shared memory system?

Thanks a bunch

Asit