distributed_code.ex

## Distributed code using Nodes
# Elixir docs http://elixir-lang.org/getting-started/mix-otp/distributed-tasks-and-configuration.html
# This blog post http://benjamintan.io/blog/2014/05/25/connecting-elixir-nodes-on-the-same-lan/

iex --sname foo

Results in

foo@computer-name

Define a module in that shell

iex> defmodule Hello do
...>   def world, do: IO.puts "hello world"
...> end

Open a new terminal window

iex --sname bar

Inside the bar terminal window

iex> Hello.world

Reuslts in

(UndefinedFunctionError) undefined function: Hello.world/0
  Hello.world()

In the bar terminal

iex> Node.spawn_link :"foo@computer-name", fn -> Hello.world end
#PID<9014.59.0>
hello world

Elixir spawned a process on another node and returned its pid

We can send and receive message from the pid returned by Node.spawn_link/2 as usual.

We can have the two processes talk to each other like any other processes