gistfile1.ex

# Node A:
# iex --sname "nodea"
Process.register self, :iex

# Blocking
receive do
  { :hello, pid } ->
    IO.puts "Hello from #{inspect(pid)}"
end

# Node B:
# iex --sname "nodeb"

Node.connect :"nodea@myhostname"
# true

parent = self
Node.spawn_link(:"nodea@myhostname", fn ->
  parent <- Process.whereis(:iex)
end)

master = receive do
  iex_pid -> iex_pid
end

master <- { :hello, "Hello, Batman"}