OTP Basics with Elixir

We will see

send

receive

Process

message passing

pid = self()

Send

pid = self()
send(self, {:greet, "morning"})

Receive

pid = self()
send(self, {:greet, "morning"})

receive do
{:greet, time} ->
IO.puts "Good #{time}"
_ ->
IO.puts "hello"
_
end

Process

spawn

pid = spawn(fn -> IO.puts "hello" end)
Process.whereis(pid)

Process.alive?(pid)

spawn with module

defmodule Foo do
def bar do
end
end

new_pid = spawn(Foo, :bar, [])