Demonstration of trapping exits in Elixir

example run

iex(2)> pid = spawn Traps, :init, []
waiting to die...
#PID<0.92.0>
Nobody tried to kill me! ^_^
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
iex(3)> Process.exit pid, :normal
true
(⊙＿⊙') somebody tried to kill me! {:EXIT, #PID<0.88.0>, :normal}
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
iex(4)> Process.exit pid, :muereeeeee
(⊙＿⊙') somebody tried to kill me! {:EXIT, #PID<0.88.0>, :muereeeeee}
true
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
Nobody tried to kill me! ^_^
waiting to die...
iex(5)> Process.exit pid, :kill
true
iex(6)>

traps.ex

defmodule Traps do
  def init do
    Process.flag :trap_exit, true
    loop()
  end

  def loop do
    IO.puts "waiting to die..."
    receive do
      msg ->
        IO.puts "(⊙＿⊙') somebody tried to kill me! #{inspect msg}"
      after 1000 ->
        IO.puts "Nobody tried to kill me! ^_^"
    end
    loop
  end
end